{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS30SM80CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS30SM80CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS30SM80CT","factsUrl":"https://icboms.com/api/mcp/products/STPS30SM80CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS30SM80CT, Schottky rectifier, 80 V reverse, 15 A average per diode, 1 Pair Common Cathode, 790 mV forward drop at 15 A, TO-220-3 through-hole, 175°C junction.","salesMarkdown":"## 80 V, 15 A Schottky pair in a TO-220-3 The STPS30SM80CT is a dual Schottky rectifier from STMicroelectronics, configured as a common-cathode pair in a single TO-220-3 through-hole package. Reverse leakage is 40 µA at the 80 V rated reverse voltage. The junction temperature rating goes to 175°C, which gives thermal headroom in high-ambient environments like power supplies and motor drives, but the TO-220 tab must be heatsunk to keep the die below that ceiling under load. STMicroelectronics lists the STPS30SM80CT as Obsolete. The common-cathode configuration is the topology constraint — any replacement must share that pinout. ## Conduction loss and thermal budgeting At 15 A per diode, the 790 mV forward drop gives about 11.85 W conduction loss per die. In a common-cathode pair carrying 30 A total, that is nearly 24 W of heat to pull through the TO-220 tab into a heatsink. The 175°C junction ceiling is the absolute limit — derate for ambient temperature and mounting interface. The 40 µA leakage at 80 V reverse is a standby-loss contributor at high temperature.","metaTitle":"STPS30SM80CT Schottky Diode, 80V 15A, TO-220-3, Obsolete","metaDescription":"STPS30SM80CT Schottky rectifier, 80V reverse, 15A per diode, 790mV Vf, TO-220-3. Check replacement options.","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":"STPS30","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"40 µA @ 80 V","Voltage - DC Reverse (Vr) (Max)":"80 V","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"790 mV @ 15 A","Current - Average Rectified (Io) (per Diode)":"15A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4522","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c30595e7af9f4cfddb5f78be68c2468a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS30SM80CT/alternatives.json"},"ai":{"faq":[{"question":"What are the exact specifications of the STPS30SM80CT?","answer":"The STPS30SM80CT is a Schottky rectifier with 80 V reverse voltage, 15 A average rectified current per diode, 790 mV maximum forward voltage at 15 A, 40 µA reverse leakage at 80 V, and a 175°C maximum junction temperature. It is a 1 Pair Common Cathode configuration in a TO-220-3 through-hole package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS30SM80CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS30SM80CT 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}}