{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS20SM80CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS20SM80CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS20SM80CT","factsUrl":"https://icboms.com/api/mcp/products/STPS20SM80CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS20SM80CT, Schottky rectifier, 80 V, 20 A total (10 A per diode), common-cathode dual, TO-220-3, 780 mV Vf at 10 A, 25 µA leakage at 80 V, junction temp 175°C max.","salesMarkdown":"Reverse leakage is specified at 25 µA at the 80 V maximum reverse voltage. The junction temperature rating of 175°C allows operation in thermally demanding environments like power supplies and DC-DC converters where Schottky's low forward drop reduces conduction loss. This means STMicroelectronics no longer manufactures it, and no last-time-buy window is open. For BOM lines that still specify this order code, the supply route is the independent distribution channel — verified surplus, new-old-stock, or broker inventory. ## Fast recovery and switching fit The 80 V reverse voltage provides adequate margin for 48 V bus rails and 24 V industrial supplies. Housed in a TO-220-3 through-hole package with a common-cathode pinout — the center pin is the shared cathode, outer pins are the anodes. The metal tab is electrically connected to the cathode, so an insulating pad and washer are needed if heatsinking to a grounded chassis. Through-hole mounting suits point-of-load assemblies and hand-solder rework.","metaTitle":"STPS20SM80CT Schottky Diode, 80V 20A TO-220-3, Obsolete","metaDescription":"STPS20SM80CT dual common-cathode Schottky rectifier, 80V, 10A per diode, 780mV Vf at 10A, TO-220-3.","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":"Tube","Technology":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS20","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","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":"$0.9300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/18cd64187c7ca89048d42980ddc77e02.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS20SM80CT/alternatives.json"},"ai":{"faq":[{"question":"Is the STPS20SM80CT obsolete?","answer":"Yes, the STPS20SM80CT is officially obsolete. No further production runs are planned, and no last-time-buy is active. Procurement relies on verified surplus or broker inventory."},{"question":"What is a direct replacement for the STPS20SM80CT?","answer":"No official replacement is listed by STMicroelectronics. A functionally similar Schottky in the same TO-220-3 package with a common-cathode configuration, 80 V rating, and 20 A total current should be evaluated for forward voltage drop and switching speed. Contact us for cross-reference support if you need a drop-in alternative."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS20SM80CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS20SM80CT 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}}