{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS40L45CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS40L45CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS40L45CT","factsUrl":"https://icboms.com/api/mcp/products/STPS40L45CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS40L45CT, Schottky diode array, 1 pair common cathode, 45 V DC reverse voltage, 20 A average rectified current per diode, 530 mV forward voltage at 20 A, fast recovery ≤ 500 ns, TO-220-3 through-hole package.","salesMarkdown":"## 45 V, 20 A common-cathode Schottky pair — rectifier stage workhorse ## Forward voltage and conduction loss at 20 A The forward voltage is specified at 530 mV maximum at 20 A per diode. This is the figure to plug into the conduction loss calculation for the rectifier stage: at 20 A, each diode dissipates roughly 10.6 W, which drives the heatsink requirement. The 45 V reverse blocking suits 24 V and 12 V bus architectures with adequate derating margin. ## Junction temperature ceiling and thermal derating The maximum junction temperature is 150°C. The reverse leakage at 45 V is 600 µA, which climbs with temperature and adds to the standing power loss. The part is ROHS3 compliant.","metaTitle":"STPS40L45CT Schottky Diode Array, 45V 20A TO-220-3","metaDescription":"STPS40L45CT dual common-cathode Schottky rectifier, 45V Vrrm, 20A per diode, 530mV Vf at 20A. TO-220-3 through-hole. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS40","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"600 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Operating Temperature - Junction":"150°C(Max)","Voltage - Forward (Vf) (Max) @ If":"530 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2700","priceTiers":[{"qty":1,"price":"$2.27000","currency":"USD"},{"qty":10,"price":"$1.88200","currency":"USD"},{"qty":100,"price":"$1.49760","currency":"USD"},{"qty":500,"price":"$1.26720","currency":"USD"},{"qty":1000,"price":"$1.07521","currency":"USD"},{"qty":2000,"price":"$1.02145","currency":"USD"},{"qty":5000,"price":"$0.98305","currency":"USD"},{"qty":10000,"price":"$0.95050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/936c0427c6bf90cd9c403b0bd211edbe.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS40L45CT/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS40L45CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS40L45CT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}