{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS80H100CY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS80H100CY","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS80H100CY","factsUrl":"https://icboms.com/api/mcp/products/STPS80H100CY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS80H100CY, Q Automotive series, Schottky diode, 1 pair common cathode, 100 V reverse, 40 A average per diode, 800 mV forward voltage, TO-247-3 through hole, 175°C max junction.","salesMarkdown":"The 100 V reverse voltage rating gives headroom for 48 V bus rails and 72 V automotive transient peaks. Junction temperature is rated to 175°C, so it can live in an under-hood or industrial enclosure without derating panic. The Q Automotive series designation means this part was originally qualified for automotive applications, though with the obsolete status, new-vehicle production designs should look at current-generation alternatives. ## Obsolete — sourcing the STPS80H100CY today STMicroelectronics lists the STPS80H100CY as obsolete. No lead-time number from the factory exists because the factory no longer makes it. If you are qualifying a replacement, look for a common-cathode Schottky in TO-247-3 rated at 100 V and 40 A per diode with a junction temperature of at least 175°C. The STPS80H100CY has no official successor listed by ST, so the cross-reference search falls to parametric matching. ## Field-swap friendly — TO-247-3 with through-hole leads The TO-247-3 package is a through-hole part with three leads and a large tab for heatsinking. No hot-air station, no reflow profile — just a soldering iron and a screw hole for the heatsink. Orientation is obvious: the common-cathode pair has the two anodes on the outer pins and the shared cathode on the center pin (pin 2). Marking is clear on the body.","metaTitle":"STPS80H100CY Schottky Diode, 100 V, 40 A, TO-247-3, Obsolete","metaDescription":"STPS80H100CY dual common-cathode Schottky rectifier: 100 V reverse, 40 A per diode, 800 mV Vf, TO-247-3. Request quote.","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":"Q Automotive","Package":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-247-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS80","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"MAX247™","Current - Reverse Leakage @ Vr":"20 µA @ 100 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"800 mV @ 40 A","Current - Average Rectified (Io) (per Diode)":"40A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dd796e28b362f645decc894eb346d6d6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS80H100CY/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPS80H100CY?","answer":"STMicroelectronics does not list an official successor for the STPS80H100CY. A parametric replacement would be a common-cathode Schottky in TO-247-3, rated at 100 V reverse voltage and 40 A average current per diode, with a junction temperature rating of at least 175°C. The STPS80H100CY's 800 mV forward voltage at 40 A is a benchmark to match or improve upon."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS80H100CY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS80H100CY 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}}