{"title":"DIN Rail DC-DC PSU","description":"\u003ch1 style=\"text-align: left;\"\u003eIndustrial DIN Rail DC-DC Power Supplies (Buck Converters)\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003eThe \u003cstrong\u003eEbyte DIN Rail DC-DC PSU series\u003c\/strong\u003e is an ultra-reliable, industrial-grade voltage regulation solution engineered for high-density control cabinets, remote IoT nodes, and automation systems. Operating across an ultra-wide input envelope of \u003cstrong\u003e4.2VDC to 100VDC\u003c\/strong\u003e with up to \u003cstrong\u003e97% peak conversion efficiency\u003c\/strong\u003e, these DC-DC buck converters provide rock-solid step-down voltage regulation (5V, 12V, 24V DC output) for sensitive edge controllers, wireless gateways, and field sensors.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eDesigned for challenging industrial environments, each module features a standard \u003cstrong\u003e35mm DIN-rail mount\u003c\/strong\u003e, tool-free \u003cstrong\u003epush-in spring terminals\u003c\/strong\u003e for fast and vibration-proof wiring, and comprehensive safety protections including surge\/lightning protection, input reverse polarity defense, and output overvoltage protection (OVP).\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2 style=\"text-align: left;\"\u003eProduct Selection Guide (Model Comparison)\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003eUse the table below to select the right Ebyte BDD03 series DC-DC converter for your continuous power load and output voltage requirements:\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%; margin-left: 0px; margin-right: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003eModel SKU\u003c\/th\u003e\n\u003cth\u003eInput Voltage\u003c\/th\u003e\n\u003cth\u003eOutput Voltage\u003c\/th\u003e\n\u003cth\u003eMax Output Current\u003c\/th\u003e\n\u003cth\u003eMax Output Power\u003c\/th\u003e\n\u003cth\u003eMax Efficiency\u003c\/th\u003e\n\u003cth\u003eKey Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBDD03-48243A0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003ctd\u003e3 A\u003c\/td\u003e\n\u003ctd\u003e72 W\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003ctd\u003eIndustrial PLC \u0026amp; Modbus Gateway Powering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBDD03-80052A0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd\u003e5 VDC\u003c\/td\u003e\n\u003ctd\u003e2 A\u003c\/td\u003e\n\u003ctd\u003e10 W\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003ctd\u003eLow-power MCU \u0026amp; Sensor Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBDD03-80121A0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd\u003e12 VDC\u003c\/td\u003e\n\u003ctd\u003e1 A\u003c\/td\u003e\n\u003ctd\u003e12 W\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003ctd\u003eCompact 12V Wireless Telemetry Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBDD03-80241A0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003ctd\u003e1 A\u003c\/td\u003e\n\u003ctd\u003e24 W\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003ctd\u003eOutdoor Highway Cabinet Surge-Protected Devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBDD03-4805123A0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd\u003e5 V \/ 12 VDC\u003c\/td\u003e\n\u003ctd\u003e3 A\u003c\/td\u003e\n\u003ctd\u003e36 W\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003ctd\u003eDual-rail IoT Gateway \u0026amp; RF Transceiver Setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBDD03-4805125A0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd\u003e5 V \/ 12 VDC\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003ctd\u003e60 W\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003ctd\u003eHigh-current Edge Controllers \u0026amp; Multi-Sensor Hubs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2 style=\"text-align: left;\"\u003ePractical Application Scenarios\u003c\/h2\u003e\n\u003ch3 style=\"text-align: left;\"\u003e1. Solar-Powered Off-Grid IoT \u0026amp; LoRaWAN Gateway Stations\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003eOff-grid 24V or 48V battery banks connected to solar arrays experience wide voltage swings during peak charge cycles and ambient cold starts. Ebyte DC-DC converters step down fluctuating DC bus voltages down to a stable 5V, 12V, or 24V rail, protecting outdoor LoRaWAN base stations, weather stations, and remote radio transceivers from overvoltage failures.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e2. Industrial Automation \u0026amp; Factory PLC Control Cabinets\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003eIn factory automation environments, heavy inductive loads (such as motors and relays) inject severe noise transients onto main DC power buses. Installing DIN-rail mounted BDD03 modules effectively isolates delicate PLC controllers, Modbus RS485 serial converters, and industrial Ethernet switches from power line disturbances while maximizing cabinet thermal efficiency.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e3. Smart Highway, Traffic Monitoring \u0026amp; Utility Enclosures\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003eRoadside traffic control cabinets are vulnerable to grid surge spikes and electrical noise over long wiring runs. Utilizing models like the BDD03-80241A0 with built-in surge\/lightning suppression guarantees continuous 24V\/12V power supply to 4G\/5G DTUs, IP cameras, and streetlight monitoring nodes without risk of port damage.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e4. Railway Telemetry \u0026amp; Wayside Sensing Systems\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003eTrackside telemetry equipment suffers from continuous mechanical vibration caused by train traffic, which can loosen traditional screw-terminal power wiring. Ebyte push-in spring terminals maintain constant, self-adjusting clamping pressure on power leads, ensuring uncompromised power delivery to trackside telemetry units and GNSS asset tracking hardware.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2 style=\"text-align: left;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"text-align: left;\"\u003eQ1: Why choose push-in spring terminals over traditional screw terminals for DIN-rail DC-DC supplies?\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Push-in spring terminals eliminate wire loosening caused by continuous thermal expansion or industrial mechanical vibration. They also speed up field installation by over 50% since no screwdrivers are required during cabinet assembly or system maintenance.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eQ2: How does the ultra-wide 4.2-100VDC input range benefit battery and solar applications?\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Industrial battery banks and solar arrays undergo major voltage fluctuations during load shedding, deep discharge, or high solar irradiance charging spikes. The 4.2-100V operating window allows the converter to deliver stable voltage output continuously without shutting down or suffering hardware damage during transient spikes up to 100V.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eQ3: Do Ebyte BDD03 DIN-rail DC-DC converters require external heat sinks or fan cooling?\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. Thanks to high-efficiency switching topology achieving up to 97% peak conversion efficiency, internal heat dissipation is minimized. The compact housing allows full continuous load operation in standard enclosed industrial control cabinets without additional heatsinks or active fan cooling.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eQ4: What protective features safeguard connected downstream IoT devices?\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The Ebyte DC-DC PSU series incorporates a triple hardware defense suite: input reverse polarity protection (preventing burnout if wiring is polarity-reversed), input lightning and surge suppression, and output overvoltage protection (OVP) to guarantee uninterrupted, clean DC power for sensitive edge devices.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"CollectionPage\",\n      \"name\": \"Industrial DIN Rail DC-DC Power Supplies\",\n      \"description\": \"Ebyte industrial DIN Rail DC-DC buck power converters with 4.2-100VDC wide input, up to 97% efficiency, push-in spring terminals, and surge protection.\",\n      \"url\": \"https:\/\/ebyteiot.com\/collections\/din-rail-dc-dc-psu\",\n      \"mainEntity\": {\n        \"@type\": \"ItemList\",\n        \"itemListElement\": [\n          {\n            \"@type\": \"Product\",\n            \"position\": 1,\n            \"name\": \"Ebyte BDD03 Series DC-DC Buck Converter 4.2-100V 97% DIN Rail\",\n            \"url\": \"https:\/\/ebyteiot.com\/products\/ebyte-bdd03-series-dc-dc-buck-converter-4-2-100v-97-din-rail\"\n          }\n        ]\n      }\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Why choose push-in spring terminals over traditional screw terminals for DIN-rail DC-DC supplies?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Push-in spring terminals eliminate wire loosening caused by continuous thermal expansion or industrial mechanical vibration. They also speed up field installation by over 50% since no screwdrivers are required during cabinet assembly or system maintenance.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How does the ultra-wide 4.2-100VDC input range benefit battery and solar applications?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Industrial battery banks and solar arrays undergo major voltage fluctuations during charging cycles, cold starts, or sudden load shedding. The 4.2-100VDC operating window allows the converter to deliver stable voltage output continuously without shutting down or experiencing overvoltage damage during transient spikes up to 100V.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Do Ebyte BDD03 DIN-rail DC-DC converters require external heat sinks or fan cooling?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"No. Thanks to high-efficiency switching topology achieving up to 97% peak conversion efficiency, internal heat dissipation is minimized. The compact housing allows full continuous load operation in standard enclosed industrial control cabinets without additional heatsinks or active fan cooling.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What protective features safeguard connected downstream IoT devices?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The Ebyte DC-DC PSU series incorporates a triple hardware defense suite: input reverse polarity protection, input lightning and surge suppression, and output overvoltage protection (OVP) to guarantee uninterrupted, clean DC power for sensitive edge devices.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","products":[{"product_id":"ebyte-bdd03-series-dc-dc-buck-converter-4-2-100v-97-din-rail","title":"Ebyte BDD03 Series DC-DC Buck Converter 4.2-100V 97% DIN Rail","description":"\u003cp\u003eThe Ebyte BDD03 series is an ultra-wide input (4.2-100VDC) industrial-grade DC-DC buck power module delivering up to 97% conversion efficiency, engineered with tool-free spring terminals and standard 35mm DIN-rail mounting to provide robust, surge-protected DC power regulation for IoT gateways, wireless DTUs, edge controllers, and industrial automation instrumentation.\u003c\/p\u003e\n\u003cdiv class=\"ebyte-specs-container\" style=\"overflow-x: auto; margin: 15px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: left; border: 1px solid #e0e0e0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f5f7fa; border-bottom: 2px solid #d0d7de;\"\u003e\n\u003cth style=\"padding: 10px 14px; color: #24292f;\"\u003eSpecification Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px 14px; color: #24292f;\"\u003eTechnical Value \/ Feature Description\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eProduct Series\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eEbyte BDD03 Industrial DC-DC Buck Converter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003e4.2VDC to 100VDC Wide Range Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003ePeak Conversion Efficiency\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eUp to 97% (MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eMounting Standard\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eStandard 35mm DIN-Rail Mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eWiring Interface\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003ePush-in Spring Terminals (Tool-Free Quick Wiring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eInput Protection\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eLightning \/ Surge Protection, Input Reverse Polarity Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eOutput Protection\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eOutput Overvoltage Protection (OVP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUltra-Wide 4.2-100VDC Input Envelope:\u003c\/b\u003e Tolerates severe input voltage fluctuations from battery banks, solar arrays, or unregulated industrial power buses without hardware failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUp to 97% Conversion Efficiency:\u003c\/b\u003e High-efficiency buck power topology minimizes heat dissipation, enabling high-density, fanless control cabinet integration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTool-Free Spring Terminal Interface:\u003c\/b\u003e Push-in spring terminals drastically speed up field installation and prevent wire loosening caused by continuous industrial vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eComprehensive Triple Safeguard Suite:\u003c\/b\u003e Built-in surge\/lightning protection, input reverse polarity defense, and output overvoltage protection safeguard sensitive downstream IoT hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Selection Guide\u003c\/h2\u003e\n\u003cp\u003eSelection Tip: Always verify system input voltage dynamics and total peak load current requirements. Ensure the target module's rated output current exceeds the combined continuous current consumption of your connected IoT devices and field sensors.\u003c\/p\u003e\n\u003cdiv class=\"ebyte-selection-container\" style=\"overflow-x: auto; margin: 15px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: center; border: 1px solid #e0e0e0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f5f7fa; border-bottom: 2px solid #d0d7de;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left;\"\u003eModel SKU\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eInput Voltage\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eOutput Voltage\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMax Output Current\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMax Output Power\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMax Efficiency\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMounting Type\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-48243A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e24 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e3 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e72 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-80052A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e2 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e10 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-80121A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e12 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e1 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e12 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-80241A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e24 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e1 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e24 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-4805123A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 V \/ 12 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e3 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e36 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-4805125A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 V \/ 12 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e60 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_01_43e462e5-2cfa-45eb-8276-2955c14c287a.jpg?v=1789540499\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_02_aa43707e-568e-4c22-ad60-18aeddbb69f9.jpg?v=1789540557\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_04_d2472a38-ca41-4767-a2f8-cb220e33555e.jpg?v=1789540582\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_05_13ce7aeb-8f83-421f-8cc6-55a776cd845d.jpg?v=1789540699\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_06_aebbca9f-99db-4ba3-8d00-c0ae61ae67a8.jpg?v=1789540753\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_07_259d46ad-3158-48db-b094-d8eb6b742c6a.jpg?v=1789540770\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_08_dc1995f4-7796-4023-b834-1a294e34930c.jpg?v=1789540839\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_09_12c230b7-cd33-401b-a459-b339c7e5c2da.jpg?v=1789540858\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eIndustrial Installation \u0026amp; Wiring\u003c\/h3\u003e\n\u003cp\u003eThe BDD03 series features a compact enclosure engineered for standard 35mm DIN-rail mounting inside industrial control panels. Field wiring utilizes push-in spring terminals that allow direct, tool-free conductor insertion. To wire the module, push stripped wire leads directly into the terminal slots until clamped; press the release lever with a small pin to detach conductors during maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_10_76088f44-09ed-4fe9-8bc4-ba0bb5c74eee.jpg?v=1789540875\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_11_cf6eafe7-2eb9-4c19-a88c-7903f7b9fbaa.jpg?v=1789540892\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_12_220f3e8d-43ca-46c8-a400-fecb0f809ea9.jpg?v=1789540902\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_13_3a0c742e-5871-4415-bc0e-e41dab434746.jpg?v=1789540918\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003ePractical Application Scenarios\u003c\/h2\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003ch3\u003ePowering Outdoor Solar-Powered LoRaWAN Base Stations\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIn remote environmental and smart agriculture deployments, 24V or 48V solar battery systems produce wide voltage fluctuations during charging cycles. The BDD03 series steps down variable 48V DC bus power directly to a stable 12V or 5V rail to supply continuous, low-ripple power to Ebyte outdoor LoRaWAN gateways and Sub-GHz RF transceivers, enduring harsh outdoor ambient thermal shifts.\u003c\/p\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003ch3\u003eIndustrial Automation Control Cabinets and PLC Power Distribution\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eInside factory distribution panels, edge controllers share main DC buses with heavy inductive loads. Deploying the DIN-rail BDD03-48243A0 module allows system integrators to drop 48V or 72V DC bus lines down to 24V 3A to drive Ebyte Modbus RS485 serial servers, ethernet gateways, and distributed digital I\/O modules, isolating control electronics from motor switching transients.\u003c\/p\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003ch3\u003eIntelligent Highway and Streetlight Monitoring Cabinets\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eSmart transportation enclosures along highway corridors suffer from line surges and grid switching transients. Utilizing BDD03-80241A0's built-in lightning and surge protection, municipal engineers safely step down internal 48V\/80V DC rails to 24V 1A or 12V 1A, powering Ebyte 4G\/5G DTUs and lighting controllers reliably without risking port burnout over extended cabinet wiring.\u003c\/p\u003e\n\u003col start=\"4\"\u003e\n\u003cli\u003e\n\u003ch3\u003eRailway Transit Signal Sensing and Wayside Telemetry Nodes\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eRail side-track monitoring systems rely on wide-input DC power conversion from battery backups to run trackbed sensors and telemetry units. The BDD03 module's tool-free spring terminals resist constant mechanical vibration from passing trains, delivering a stable 5V or 12V supply to Ebyte SPI radio modules and GNSS positioning units for continuous asset location and condition tracking.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_15_be1137b6-3ad0-4fed-95df-76520fdf9b93.jpg?v=1789540935\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFAQ Section\u003c\/h2\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003ch3\u003eWhat is the advantage of push-in spring terminals over screw terminals in industrial cabinets?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003ePush-in spring terminals provide constant, self-adjusting clamping pressure on conductors, eliminating wire loosening caused by continuous thermal expansion or industrial mechanical vibration. They also reduce installation time by over 50% since no screwdrivers are required during cabinet assembly or field maintenance.\u003c\/p\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003ch3\u003eHow does the ultra-wide 4.2-100VDC input range benefit solar and battery-backed IoT deployments?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eOff-grid solar arrays and industrial battery banks undergo significant voltage swings during charging cycles, cold starts, or sudden load shedding. The 4.2-100VDC operating envelope ensures that the BDD03 buck module remains fully operational without shutting down or experiencing overvoltage damage during transient charging spikes up to 100V.\u003c\/p\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003ch3\u003eDoes the BDD03 DC-DC converter require external heat sinks or forced air cooling?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eNo, the module achieves up to 97% peak conversion efficiency, minimizing internal thermal loss. Its compact housing and DIN-rail mounting structure allow full-load continuous operation in standard industrial control enclosures without requiring external heat sinks or cooling fans.\u003c\/p\u003e\n\u003col start=\"4\"\u003e\n\u003cli\u003e\n\u003ch3\u003eWhat protective features safeguard downstream connected Ebyte IoT devices?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe BDD03 series incorporates comprehensive hardware protection, including input reverse polarity protection (preventing module burnout if power leads are accidentally swapped), input lightning and surge suppression, and output overvoltage protection (OVP) to guarantee steady voltage delivery to sensitive edge devices.\u003c\/p\u003e","brand":"Ebyte Official Store - IoT Module Manufacturer","offers":[{"title":"BDD03-48243A0","offer_id":48826546520269,"sku":"BDD03-48243A0","price":6.44,"currency_code":"USD","in_stock":true},{"title":"BDD03-80052A0","offer_id":48826546553037,"sku":"BDD03-80052A0","price":4.66,"currency_code":"USD","in_stock":true},{"title":"BDD03-80121A0","offer_id":48826546585805,"sku":"BDD03-80121A0","price":4.66,"currency_code":"USD","in_stock":true},{"title":"BDD03-80241A0","offer_id":48826546618573,"sku":"BDD03-80241A0","price":4.66,"currency_code":"USD","in_stock":true},{"title":"BDD03-4805123A0","offer_id":48826546651341,"sku":"BDD03-4805123A0","price":9.64,"currency_code":"USD","in_stock":false},{"title":"BDD03-4805125A0","offer_id":48826546684109,"sku":"BDD03-4805125A0","price":9.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/BDD03-48243A0.jpg?v=1789539462"},{"product_id":"0-1-free-samplelimit-2-pcs-per-person-of-all-sample-models-ebyte-bdd03-series-dc-dc-buck-converter-4-2-100v-97-din-rail","title":"0.1$ Free Sample(Limit 2 pcs per person of all sample models) Ebyte BDD03 Series DC-DC Buck Converter 4.2-100V 97% DIN Rail","description":"\u003cp\u003eThe Ebyte BDD03 series is an ultra-wide input (4.2-100VDC) industrial-grade DC-DC buck power module delivering up to 97% conversion efficiency, engineered with tool-free spring terminals and standard 35mm DIN-rail mounting to provide robust, surge-protected DC power regulation for IoT gateways, wireless DTUs, edge controllers, and industrial automation instrumentation.\u003c\/p\u003e\n\u003cdiv class=\"ebyte-specs-container\" style=\"overflow-x: auto; margin: 15px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: left; border: 1px solid #e0e0e0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f5f7fa; border-bottom: 2px solid #d0d7de;\"\u003e\n\u003cth style=\"padding: 10px 14px; color: #24292f;\"\u003eSpecification Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px 14px; color: #24292f;\"\u003eTechnical Value \/ Feature Description\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eProduct Series\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eEbyte BDD03 Industrial DC-DC Buck Converter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003e4.2VDC to 100VDC Wide Range Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003ePeak Conversion Efficiency\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eUp to 97% (MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eMounting Standard\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eStandard 35mm DIN-Rail Mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eWiring Interface\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003ePush-in Spring Terminals (Tool-Free Quick Wiring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eInput Protection\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eLightning \/ Surge Protection, Input Reverse Polarity Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold; background-color: #fafafa;\"\u003eOutput Protection\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px;\"\u003eOutput Overvoltage Protection (OVP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUltra-Wide 4.2-100VDC Input Envelope:\u003c\/b\u003e Tolerates severe input voltage fluctuations from battery banks, solar arrays, or unregulated industrial power buses without hardware failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUp to 97% Conversion Efficiency:\u003c\/b\u003e High-efficiency buck power topology minimizes heat dissipation, enabling high-density, fanless control cabinet integration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTool-Free Spring Terminal Interface:\u003c\/b\u003e Push-in spring terminals drastically speed up field installation and prevent wire loosening caused by continuous industrial vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eComprehensive Triple Safeguard Suite:\u003c\/b\u003e Built-in surge\/lightning protection, input reverse polarity defense, and output overvoltage protection safeguard sensitive downstream IoT hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Selection Guide\u003c\/h2\u003e\n\u003cp\u003eSelection Tip: Always verify system input voltage dynamics and total peak load current requirements. Ensure the target module's rated output current exceeds the combined continuous current consumption of your connected IoT devices and field sensors.\u003c\/p\u003e\n\u003cdiv class=\"ebyte-selection-container\" style=\"overflow-x: auto; margin: 15px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: center; border: 1px solid #e0e0e0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f5f7fa; border-bottom: 2px solid #d0d7de;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left;\"\u003eModel SKU\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eInput Voltage\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eOutput Voltage\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMax Output Current\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMax Output Power\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMax Efficiency\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMounting Type\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-48243A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e24 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e3 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e72 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-80052A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e2 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e10 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-80121A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e12 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e1 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e12 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-80241A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e24 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e1 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e24 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-4805123A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 V \/ 12 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e3 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e36 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0; background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eBDD03-4805125A0\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e4.2 - 100 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 V \/ 12 VDC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e5 A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e60 W\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e97%\u003c\/td\u003e\n\u003ctd style=\"padding: 10px;\"\u003e35mm DIN-Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_01_43e462e5-2cfa-45eb-8276-2955c14c287a.jpg?v=1789540499\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_02_aa43707e-568e-4c22-ad60-18aeddbb69f9.jpg?v=1789540557\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_04_d2472a38-ca41-4767-a2f8-cb220e33555e.jpg?v=1789540582\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_05_13ce7aeb-8f83-421f-8cc6-55a776cd845d.jpg?v=1789540699\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_06_aebbca9f-99db-4ba3-8d00-c0ae61ae67a8.jpg?v=1789540753\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_07_259d46ad-3158-48db-b094-d8eb6b742c6a.jpg?v=1789540770\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_08_dc1995f4-7796-4023-b834-1a294e34930c.jpg?v=1789540839\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_09_12c230b7-cd33-401b-a459-b339c7e5c2da.jpg?v=1789540858\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eIndustrial Installation \u0026amp; Wiring\u003c\/h3\u003e\n\u003cp\u003eThe BDD03 series features a compact enclosure engineered for standard 35mm DIN-rail mounting inside industrial control panels. Field wiring utilizes push-in spring terminals that allow direct, tool-free conductor insertion. To wire the module, push stripped wire leads directly into the terminal slots until clamped; press the release lever with a small pin to detach conductors during maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_10_76088f44-09ed-4fe9-8bc4-ba0bb5c74eee.jpg?v=1789540875\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_11_cf6eafe7-2eb9-4c19-a88c-7903f7b9fbaa.jpg?v=1789540892\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_12_220f3e8d-43ca-46c8-a400-fecb0f809ea9.jpg?v=1789540902\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_13_3a0c742e-5871-4415-bc0e-e41dab434746.jpg?v=1789540918\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003ePractical Application Scenarios\u003c\/h2\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003ch3\u003ePowering Outdoor Solar-Powered LoRaWAN Base Stations\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIn remote environmental and smart agriculture deployments, 24V or 48V solar battery systems produce wide voltage fluctuations during charging cycles. The BDD03 series steps down variable 48V DC bus power directly to a stable 12V or 5V rail to supply continuous, low-ripple power to Ebyte outdoor LoRaWAN gateways and Sub-GHz RF transceivers, enduring harsh outdoor ambient thermal shifts.\u003c\/p\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003ch3\u003eIndustrial Automation Control Cabinets and PLC Power Distribution\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eInside factory distribution panels, edge controllers share main DC buses with heavy inductive loads. Deploying the DIN-rail BDD03-48243A0 module allows system integrators to drop 48V or 72V DC bus lines down to 24V 3A to drive Ebyte Modbus RS485 serial servers, ethernet gateways, and distributed digital I\/O modules, isolating control electronics from motor switching transients.\u003c\/p\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003ch3\u003eIntelligent Highway and Streetlight Monitoring Cabinets\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eSmart transportation enclosures along highway corridors suffer from line surges and grid switching transients. Utilizing BDD03-80241A0's built-in lightning and surge protection, municipal engineers safely step down internal 48V\/80V DC rails to 24V 1A or 12V 1A, powering Ebyte 4G\/5G DTUs and lighting controllers reliably without risking port burnout over extended cabinet wiring.\u003c\/p\u003e\n\u003col start=\"4\"\u003e\n\u003cli\u003e\n\u003ch3\u003eRailway Transit Signal Sensing and Wayside Telemetry Nodes\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eRail side-track monitoring systems rely on wide-input DC power conversion from battery backups to run trackbed sensors and telemetry units. The BDD03 module's tool-free spring terminals resist constant mechanical vibration from passing trains, delivering a stable 5V or 12V supply to Ebyte SPI radio modules and GNSS positioning units for continuous asset location and condition tracking.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_15_be1137b6-3ad0-4fed-95df-76520fdf9b93.jpg?v=1789540935\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFAQ Section\u003c\/h2\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003ch3\u003eWhat is the advantage of push-in spring terminals over screw terminals in industrial cabinets?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003ePush-in spring terminals provide constant, self-adjusting clamping pressure on conductors, eliminating wire loosening caused by continuous thermal expansion or industrial mechanical vibration. They also reduce installation time by over 50% since no screwdrivers are required during cabinet assembly or field maintenance.\u003c\/p\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003ch3\u003eHow does the ultra-wide 4.2-100VDC input range benefit solar and battery-backed IoT deployments?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eOff-grid solar arrays and industrial battery banks undergo significant voltage swings during charging cycles, cold starts, or sudden load shedding. The 4.2-100VDC operating envelope ensures that the BDD03 buck module remains fully operational without shutting down or experiencing overvoltage damage during transient charging spikes up to 100V.\u003c\/p\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003ch3\u003eDoes the BDD03 DC-DC converter require external heat sinks or forced air cooling?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eNo, the module achieves up to 97% peak conversion efficiency, minimizing internal thermal loss. Its compact housing and DIN-rail mounting structure allow full-load continuous operation in standard industrial control enclosures without requiring external heat sinks or cooling fans.\u003c\/p\u003e\n\u003col start=\"4\"\u003e\n\u003cli\u003e\n\u003ch3\u003eWhat protective features safeguard downstream connected Ebyte IoT devices?\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe BDD03 series incorporates comprehensive hardware protection, including input reverse polarity protection (preventing module burnout if power leads are accidentally swapped), input lightning and surge suppression, and output overvoltage protection (OVP) to guarantee steady voltage delivery to sensitive edge devices.\u003c\/p\u003e","brand":"Ebyte Official Store - IoT Module Manufacturer","offers":[{"title":"BDD03-80121A0","offer_id":48838357680333,"sku":"BDD03-80121A0","price":0.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/BDD03-48243A0.jpg?v=1789539462"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/collections\/BDD03-4805125A0.jpg?v=1794539553","url":"https:\/\/ebyteiot.com\/zh\/collections\/din-rail-dc-dc-psu.oembed","provider":"Ebyte Official Store - IoT Module Manufacturer","version":"1.0","type":"link"}