{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS3170AFN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS3170AFN","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS3170AFN","factsUrl":"https://icboms.com/api/mcp/products/STPS3170AFN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS3170AFN, Schottky diode, 170 V reverse, 3 A forward, 820 mV Vf at 3 A, 4 µA leakage at 170 V, DO-221AC SMA Flat Leads, surface mount.","salesMarkdown":"The STPS3170AFN is a Schottky barrier rectifier from STMicroelectronics rated for 170 V DC reverse voltage and 3 A average forward current, housed in an SMA Flat Leads package for surface-mount assembly. ## Fast recovery characteristic and switching application Reverse leakage is 4 µA at the rated 170 V reverse voltage — low enough to avoid thermal runaway in most 48 V to 170 V bus applications, but leakage rises exponentially with junction temperature, so thermal derating is advised above 125 °C junction. For a drop-in replacement, the buyer should qualify a same-rated Schottky in the SMA Flat Leads footprint — 170 V, 3 A, 820 mV Vf — from the current STPS3xx or equivalent series. The SMA Flat Leads package (SMAflat Notch) is a low-profile surface-mount body with flat leads — no J-bend or gull-wing — which simplifies solder-joint inspection and reduces tombstoning risk during reflow. The base product number is STPS3170; the AFN suffix denotes the SMA Flat Leads variant.","metaTitle":"STPS3170AFN Schottky Diode, 170 V 3 A, SMA Flat Leads","metaDescription":"STPS3170AFN Schottky rectifier, 170 V reverse, 3 A forward, 820 mV Vf. DO-221AC SMA Flat Leads package.","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":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"DO-221AC, SMA Flat Leads","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS3170","Capacitance @ Vr, F":"-","Supplier Device Package":"SMAflat Notch","Current - Reverse Leakage @ Vr":"4 µA @ 170 V","Voltage - DC Reverse (Vr) (Max)":"170 V","Current - Average Rectified (Io)":"3A","Operating Temperature - Junction":"175°C","Voltage - Forward (Vf) (Max) @ If":"820 mV @ 3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8a766d774109db06a3268f3f38296972.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS3170AFN/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS3170AFN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS3170AFN 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}}