{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS1150AFN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS1150AFN","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS1150AFN","factsUrl":"https://icboms.com/api/mcp/products/STPS1150AFN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS1150AFN, Schottky diode, 150 V Vr, 1 A Io, 820 mV Vf at 1 A, 175°C Tj, DO-221AC SMA Flat Leads, Tape & Reel.","salesMarkdown":"## 150 V reverse voltage — the blocking margin for 48 V and 72 V bus rails The STPS1150AFN is a 150 V, 1 A Schottky rectifier from STMicroelectronics, part of the ECOPACK®2 series. It comes in a DO-221AC SMA Flat Leads package, a low-profile surface-mount format suited for compact power supplies and DC-DC converters. The 150 V reverse voltage rating provides comfortable margin for 48 V and 72 V bus rails, while the 1 A average rectified current handles moderate loads in secondary-side rectification, freewheeling, and OR-ing diode roles. At 1 A the forward voltage is 820 mV maximum, which translates to roughly 820 mW of dissipation at full rated current. That heat has to get out through the SMAflat package's small footprint. For designs that push the current, the low Vf helps keep junction rise manageable. ## SMAflat package — what the pick-and-place needs to know The SMA Flat Leads (DO-221AC) is a no-lead, low-profile variant of the standard SMA. It places flat, with no exposed lead tips to tombstone, and the solder joint is under the body — so inspectability is by X-ray or side-view AOI. The flat leads also reduce the z-height, which helps in slim enclosures. STMicroelectronics lists the STPS1150AFN as Active. If you need a dual-source option, the base product number STPS1150 covers multiple package variants (SMA, SMAflat, SMB), so a pin-compatible sibling in a different case style may be available — check the STPS1150 family for alternate packages.","metaTitle":"STPS1150AFN Schottky diode, 150 V, 1 A, SMAflat","metaDescription":"STPS1150AFN Schottky rectifier: 150 V reverse voltage, 1 A average current, 820 mV forward drop at 1 A, 175°C junction temp, SMAflat package. Active, RoHS.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"ECOPACK®2","Package":"Tape & Reel (TR)","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"DO-221AC, SMA Flat Leads","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS1150","Capacitance @ Vr, F":"-","Supplier Device Package":"SMAflat","Current - Reverse Leakage @ Vr":"1 µA @ 150 V","Voltage - DC Reverse (Vr) (Max)":"150 V","Current - Average Rectified (Io)":"1A","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"820 mV @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7f94b691a8be1c79dbce5902aa89154d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS1150AFN/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum junction temperature for STPS1150AFN?","answer":"The maximum junction temperature is 175°C. This allows operation in high-ambient environments, but the thermal derating curve should be followed for continuous current."},{"question":"Is STPS1150AFN RoHS compliant?","answer":"Yes, it is part of the ECOPACK®2 series, which is ST's RoHS-compliant and halogen-free packaging program."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS1150AFN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS1150AFN when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}