{"product_id":"sbl3040ct-schottky-barrier-rectifier-bitmain-apw9-psu","title":"SBL3040CT Schottky Barrier Rectifier for Bitmain APW9 APW9+ PSU","description":"\u003ch2\u003eSBL3040CT Schottky Barrier Rectifier | 30A \/ 40V Replacement Diode for Bitmain APW9 \/ APW9+ PSU Repair\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSBL3040CT\u003c\/strong\u003e is a \u003cstrong\u003e30A \/ 40V Schottky barrier rectifier\u003c\/strong\u003e in \u003cstrong\u003eTO-220AB package\u003c\/strong\u003e, sized for the \u003cstrong\u003eoutput stage of the Bitmain APW9 and APW9+ power supplies\u003c\/strong\u003e. Drop-in replacement when the original rectifier fails — high-efficiency majority-carrier conduction, low forward voltage drop, and high surge capability keep the PSU output stage running cleanly through the daily voltage swings of mining duty.\u003c\/p\u003e\n\u003cp\u003eBuilt around a \u003cstrong\u003esilicon Schottky junction with integrated guard ring\u003c\/strong\u003e for transient protection — the guard ring absorbs the voltage spikes and transient events that would otherwise damage an unprotected junction over time. \u003cstrong\u003e40V to 45V reverse voltage\u003c\/strong\u003e envelope with \u003cstrong\u003e30A continuous forward current\u003c\/strong\u003e, \u003cstrong\u003eTO-220AB molded plastic package\u003c\/strong\u003e, and \u003cstrong\u003eUL94 V-0 flammability rating\u003c\/strong\u003e. Direct replacement for the original part Bitmain specs on APW9 \/ APW9+ production units.\u003c\/p\u003e\n\u003ch3\u003eWhen to Replace the SBL3040CT\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPW9 \/ APW9+ output rail dead or out of spec\u003c\/strong\u003e — rectifier failed open or short, primary controller can't drive the output cleanly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible burn or discoloration\u003c\/strong\u003e on the SBL3040CT package — thermal or surge damage, direct replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive output ripple\u003c\/strong\u003e visible on a scope — degraded rectifier on the output, output capacitors no longer filtering cleanly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercurrent trip at startup\u003c\/strong\u003e — short across the rectifier drawing the primary into protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreventive PSU refurbishment\u003c\/strong\u003e — replace alongside output capacitors during a complete APW9 rebuild.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSBL3040CT Schottky Rectifier Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eSBL3040CT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiode Type\u003c\/td\u003e\n\u003ctd\u003eSchottky barrier rectifier (silicon, majority carrier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse Voltage (VRRM)\u003c\/td\u003e\n\u003ctd\u003e40 V – 45 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForward Current (IF)\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForward Voltage Drop\u003c\/td\u003e\n\u003ctd\u003eLow VF (typical Schottky envelope)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Capability\u003c\/td\u003e\n\u003ctd\u003eHigh — guard ring transient protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eTO-220AB molded plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlammability Rating\u003c\/td\u003e\n\u003ctd\u003eUL94 V-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Use\u003c\/td\u003e\n\u003ctd\u003eBitmain APW9 \/ APW9+ PSU output stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eThrough-hole, heat-sink rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eFAQ — SBL3040CT Schottky Rectifier\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between the SBL3040CT and the SBL2040CT \/ SBT20100CT?\u003c\/strong\u003e\u003cbr\u003eA: Same Schottky family, different current rating (20A vs 30A) and different voltage rating (40V vs 100V). Match the exact part the original PSU specs — substituting a lower-current rectifier in a higher-current rail will fail under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm the SBL3040CT is the failed component?\u003c\/strong\u003e\u003cbr\u003eA: Forward-bias and reverse-bias test with a multimeter — a healthy Schottky reads ~0.3-0.5V forward and infinite reverse. Short either direction or open both ways = failed. Visual inspection catches the obvious burn cases.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is heat-sinking required when installing?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the TO-220AB package needs to be mounted to a heat sink (typically the PSU's main aluminium chassis or output PCB heat-spreader) to handle 30A continuous. Without heat-sinking the part will overheat and fail under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Bulk pricing for repair shops?\u003c\/strong\u003e\u003cbr\u003eA: Yes — email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e with your monthly volume. Tube quantities are stocked.\u003c\/p\u003e\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mur1620ctr-16a-200v-ultrafast-rectifier-antminer-apw12\"\u003eMUR1620CTR 16A 200V Ultrafast Rectifier – Antminer APW12\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sbt20l100ct-to-220ab-low-vf-schottky-diode-20a-100v-for-bitmain-apw12\"\u003eSBT20L100CT 20A 100V Schottky Diode – Bitmain APW12\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/byc15-600p-ultrafast-power-diode-asic-power-supply\"\u003eBYC15-600P Ultrafast Power Diode – ASIC PSU\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/apw9-psu-antminer-s17-t17\"\u003eAPW9 PSU – Antminer S17 \/ T17\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRepair shops stocking SBL3040CT rectifiers by the tube? Email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e for bulk pricing. Worldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":42749133684915,"sku":null,"price":1.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/SBL3040CT-Schottky-Barrier-Rectifier-High-Efficiency-40V-Bitmain-APW9-PSU_53cede7b-6998-4d1f-b95d-70153e55280f.webp?v=1747962269","url":"https:\/\/lys-sz.com\/products\/sbl3040ct-schottky-barrier-rectifier-bitmain-apw9-psu","provider":"LYS Shenzhen","version":"1.0","type":"link"}