{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS40M80CG-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS40M80CG-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS40M80CG-TR","factsUrl":"https://icboms.com/api/mcp/products/STPS40M80CG-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS40M80CG-TR, Schottky dual-diode, 80 V reverse, 20 A per diode, 735 mV forward drop, common-cathode pair, D²PAK surface-mount, 175°C junction temperature, ROHS3, Active.","salesMarkdown":"## 80 V, 20 A common-cathode Schottky pair in D²PAK The STPS40M80CG-TR is a dual-Schottky rectifier from STMicroelectronics, pairing two 80 V, 20 A diodes in a common-cathode configuration inside a single D²PAK (TO-263AB) surface-mount package. It is designed for high-frequency output rectification, freewheeling, and OR-ing stages in power supplies and DC-DC converters where fast recovery under 500 ns and low forward drop matter. ## 735 mV forward drop — conduction loss floor At 20 A per diode, the maximum forward voltage is 735 mV. The 175°C Tj(max) rating gives more thermal headroom than the typical 150°C Schottky, useful when board space limits heatsink area. ## Reverse leakage at 80 V: 65 µA Leakage climbs with temperature — at elevated junction temperatures near 175°C it can dominate the off-state power budget, so the thermal design must account for the leakage doubling every 10–15°C above 100°C. This is a standard Schottky trade-off: low Vf costs higher leakage at high temperature. The base product number STPS40 covers a family of 80 V common-cathode Schottkys; the M80 suffix identifies the 80 V, 20 A variant.","metaTitle":"STPS40M80CG-TR Schottky Diode, 80V 20A, D2PAK","metaDescription":"STPS40M80CG-TR Schottky rectifier: 80V reverse, 20A per diode, 735mV Vf, 175°C Tj, common-cathode pair in D²PAK. Active lifecycle, ROHS3.","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":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Schottky","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS40","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"D²PAK","Current - Reverse Leakage @ Vr":"65 µA @ 80 V","Voltage - DC Reverse (Vr) (Max)":"80 V","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"735 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2900","priceTiers":[{"qty":1,"price":"$2.29000","currency":"USD"},{"qty":10,"price":"$1.89900","currency":"USD"},{"qty":100,"price":"$1.51180","currency":"USD"},{"qty":500,"price":"$1.27920","currency":"USD"},{"qty":1000,"price":"$1.08539","currency":"USD"},{"qty":2000,"price":"$1.03112","currency":"USD"},{"qty":5000,"price":"$0.99235","currency":"USD"},{"qty":10000,"price":"$0.95950","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f69372d2ec41fbefa283db16d743d0dc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS40M80CG-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STPS40M80CG-TR?","answer":"The STPS40L80CG is the low-forward-drop sibling in the same STPS40 family — same 80 V reverse, same 20 A per diode, same common-cathode D²PAK footprint. The L80 variant typically offers a lower Vf at the cost of higher reverse leakage. Confirm the forward voltage and leakage trade-off against your thermal budget before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS40M80CG-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS40M80CG-TR 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}}