{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS40SM80CR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS40SM80CR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS40SM80CR","factsUrl":"https://icboms.com/api/mcp/products/STPS40SM80CR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS40SM80CR, Schottky diode, 1 pair common cathode, 80 V DC reverse voltage, 20 A average rectified per diode, 800 mV forward drop, fast recovery ≤ 500 ns, through-hole TO-262-3 (I²PAK), tube.","salesMarkdown":"## 80 V, 20 A dual Schottky — what the ratings mean The 800 mV forward voltage at 20 A is typical for a 80 V Schottky in this current class — the trade-off is a higher Vf than a lower-voltage Schottky, but you get the headroom for 48 V or 60 V rails with margin. The fast recovery spec (≤ 500 ns, > 200 mA) means it handles switching frequencies well above line frequency, making it usable in 100–200 kHz PFC or DC-DC stages where a standard recovery diode would burn. STMicroelectronics lists the STPS40SM80CR as obsolete. No official successor is recorded in the lifecycle data, so a direct pin-compatible drop-in from ST is not guaranteed. Housed in a TO-262-3 (I²PAK) through-hole package, the device is designed for bolting to a heatsink or PCB-mounted with the tab soldered to a copper plane. The junction temperature rating of 175 °C max allows high-temperature operation in cramped enclosures, but the 20 A per diode at 800 mV Vf means about 16 W dissipation per diode at full load — that demands a low thermal resistance path. The common-cathode configuration simplifies the layout for a center-tapped secondary or a two-diode boost stage.","metaTitle":"STPS40SM80CR Schottky Diode, 80V 20A, Fast Recovery","metaDescription":"STPS40SM80CR dual common-cathode Schottky rectifier, 80V reverse voltage, 20A per diode, 800mV forward drop, fast recovery ≤500ns. 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":"-","Package":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-262-3 Long Leads, I²Pak, TO-262AA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS40","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"I2PAK","Current - Reverse Leakage @ Vr":"50 µA @ 80 V","Voltage - DC Reverse (Vr) (Max)":"80 V","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"800 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/22d3f28143d7304832147a477cb05869.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS40SM80CR/alternatives.json"},"ai":{"faq":[{"question":"Is STPS40SM80CR obsolete?","answer":"Yes, STMicroelectronics has marked the STPS40SM80CR as obsolete. No official replacement part number is listed in the lifecycle data. For new designs, consider current-production 80 V dual Schottky diodes in the same TO-262 package from ST or other manufacturers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS40SM80CR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS40SM80CR 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}}