{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS20SM80CG-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS20SM80CG-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS20SM80CG-TR","factsUrl":"https://icboms.com/api/mcp/products/STPS20SM80CG-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS20SM80CG-TR, Schottky rectifier, dual common-cathode configuration, 80 V Vr, 10 A per diode, 780 mV Vf at 10 A, 175°C Tj max, D²PAK (TO-263AB) surface-mount package.","salesMarkdown":"The STPS20SM80CG-TR is a dual Schottky rectifier from STMicroelectronics, configured as a common-cathode pair in a D²PAK (TO-263AB) surface-mount package. This part is a Schottky, not a fast-recovery diode — the 500 ns recovery spec is a catch-all category, not a meaningful switching parameter; the real advantage is the low Vf and negligible reverse-recovery charge in continuous-conduction-mode PFC or output rectification. ST lists the STPS20SM80CG-TR as obsolete. If this part is on your BOM, you are buying new-old-stock or pulled inventory. There is no official ST successor listed, so a drop-in replacement from the same manufacturer is not guaranteed. ## Dual common-cathode — board-level fit The common-cathode pair means the two anodes are separate, the cathodes are tied together internally. That maps directly to center-tapped transformer secondaries, dual-output forward converters, or OR-ing diodes where the cathodes share a common rail. At 10 A per diode continuous, the tab-to-ambient thermal resistance of the board determines whether the junction stays under 175°C. The 25 µA reverse leakage at 80 V is typical for a Schottky of this voltage class; it doubles with temperature, so at high junction temperatures the leakage contribution to self-heating needs a quick check.","metaTitle":"STPS20SM80CG-TR Schottky Rectifier, 80V 10A per Diode, D²PAK","metaDescription":"STPS20SM80CG-TR dual common-cathode Schottky rectifier: 80V Vr, 10A per diode, 780mV Vf at 10A, 175°C Tj max.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS20","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"D²PAK","Current - Reverse Leakage @ Vr":"25 µA @ 80 V","Voltage - DC Reverse (Vr) (Max)":"80 V","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"780 mV @ 10 A","Current - Average Rectified (Io) (per Diode)":"10A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/18cd64187c7ca89048d42980ddc77e02.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS20SM80CG-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPS20SM80CG-TR?","answer":"ST does not list an official direct replacement for the STPS20SM80CG-TR. For a pin-compatible drop-in, look for a dual common-cathode Schottky in D²PAK rated at 80 V and 10 A per diode. Parts from other manufacturers with the same footprint and ratings may work, but verify the forward voltage and thermal characteristics against your design margin."},{"question":"What are the specifications of STPS20SM80CG-TR?","answer":"The STPS20SM80CG-TR is a dual common-cathode Schottky rectifier. Forward voltage is 780 mV at 10 A. Maximum junction temperature is 175°C. Reverse leakage is 25 µA at 80 V. Package is D²PAK (TO-263AB), surface mount."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS20SM80CG-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS20SM80CG-TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}