{"product_id":"dc-dc-step-down-buck-converter-9-120v-to-5v-12v-3a-96-efficiency-heatsink","title":"DC-DC Step-Down Buck Converter Module — 9–120V to 5V \/ 12V, 3A, 96% Efficiency, with Heat Sink","description":"\u003ch2\u003eDC-DC Step-Down Buck Converter Module — 9–120V Input to 5V \/ 12V, 3A\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003ehigh-voltage DC-DC step-down module\u003c\/strong\u003e accepts a wide input range of \u003cstrong\u003e9–120V DC\u003c\/strong\u003e and converts it to a stable 5V or 12V output at up to 3A. With \u003cstrong\u003e96% conversion efficiency\u003c\/strong\u003e, built-in overvoltage, over-temperature, and short-circuit protection, and an included heat sink, it is designed for demanding applications including industrial power conversion, solar systems, and high-voltage battery pack regulation.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e9V – 120V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5V or 12V (fixed, variant dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Output Current\u003c\/td\u003e\n\u003ctd\u003e3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 96%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e140kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoft Start\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eOvervoltage, over-temperature, short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Sink\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e42 × 30 × 17mm (20mm with heat sink)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose This High-Voltage Buck Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e9–120V input range\u003c\/strong\u003e — handles high-voltage DC sources including 48V, 72V, 96V battery packs\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e96% efficiency\u003c\/strong\u003e — minimal heat at full load, extended component life\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTriple protection\u003c\/strong\u003e — OVP, OTP, and short-circuit protection for safe unattended operation\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSoft-start\u003c\/strong\u003e — prevents inrush current damage to load and source\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eHeat sink included\u003c\/strong\u003e — ready for continuous 3A operation\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompact 42×30mm PCB\u003c\/strong\u003e — easy to integrate into enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-voltage battery pack (48V\/72V\/96V) to 5V\/12V conversion\u003c\/li\u003e\n\u003cli\u003eSolar panel output regulation to USB 5V\u003c\/li\u003e\n\u003cli\u003eIndustrial 48V DC bus to 5V logic power\u003c\/li\u003e\n\u003cli\u003eElectric vehicle auxiliary power supply\u003c\/li\u003e\n\u003cli\u003eLED driver from high-voltage DC source\u003c\/li\u003e\n\u003cli\u003eArduino \/ Raspberry Pi power from high-voltage systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × DC-DC Step-Down Buck Converter Module (with heat sink)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eNote: No reverse polarity protection. Ensure correct polarity before connecting.\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"DC9-90V 12V 3A","offer_id":46991430156523,"sku":"14:350852#DC9-90V 12V 3A","price":8.6,"currency_code":"USD","in_stock":true},{"title":"DC9-90V 5V 3A","offer_id":46991430189291,"sku":"14:1202#DC9-90V 5V 3A","price":8.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/dc-dc-step-down-buck-converter-9-120v-to-5v-3a.webp?v=1761883620","url":"https:\/\/keszoox.com\/products\/dc-dc-step-down-buck-converter-9-120v-to-5v-12v-3a-96-efficiency-heatsink","provider":"Keszoox","version":"1.0","type":"link"}