{"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":7.57,"currency_code":"USD","in_stock":true},{"title":"BDD03-80052A0","offer_id":48826546553037,"sku":"BDD03-80052A0","price":5.48,"currency_code":"USD","in_stock":true},{"title":"BDD03-80121A0","offer_id":48826546585805,"sku":"BDD03-80121A0","price":5.48,"currency_code":"USD","in_stock":true},{"title":"BDD03-80241A0","offer_id":48826546618573,"sku":"BDD03-80241A0","price":5.48,"currency_code":"USD","in_stock":true},{"title":"BDD03-4805123A0","offer_id":48826546651341,"sku":"BDD03-4805123A0","price":11.33,"currency_code":"USD","in_stock":false},{"title":"BDD03-4805125A0","offer_id":48826546684109,"sku":"6938697487399","price":11.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/BDD03-48243A0.jpg?v=1789539462","url":"https:\/\/ebyteiot.com\/zh\/products\/ebyte-bdd03-series-dc-dc-buck-converter-4-2-100v-97-din-rail","provider":"Ebyte Official Store - IoT Module Manufacturer","version":"1.0","type":"link"}