{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS4S200UFN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS4S200UFN","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS4S200UFN","factsUrl":"https://icboms.com/api/mcp/products/STPS4S200UFN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS4S200UFN, Schottky Diode, 200 V, 4 A, Fast Recovery ≤ 500 ns, 870 mV @ 4 A, 5 mA @ 200 V reverse leakage, -40°C~175°C junction, DO-221AC SMA Flat Leads, Surface Mount, ECOPACK®2, Obsolete.","salesMarkdown":"## What the 200 V, 4 A rating means for your rail The STPS4S200UFN is a 200 V, 4 A Schottky rectifier from STMicroelectronics, built for medium-voltage power rectification and freewheeling applications where low forward voltage and fast recovery matter. Its 870 mV forward drop at 4 A keeps conduction losses manageable for a 4 A average rectified current, while the 5 mA reverse leakage at 200 V defines the standby budget in a hold-off scenario. The 175°C junction temperature rating lets it run in high-ambient environments — think sealed power supplies, motor-drive snubbers, or PFC boost stages where airflow is limited. ## Obsolete — plan the replacement now For a BOM already qualified to this footprint, the procurement path is the independent distribution channel — verified surplus stock, last-time-buy remnants, or new-old-stock lots. Date-code provenance matters here; mystery stock surfacing years after the last-time-buy window should be screened for authenticity and storage condition. The DO-221AC SMA Flat Leads package (SMAflat Notch) is a low-profile surface-mount case that fits standard SMA pad layouts but with a reduced standoff height. The 175°C junction maximum is the ceiling for a Schottky — the thermal pad on the SMAflat is smaller than a traditional SMA, so the PCB copper area and via stitch under the device carry the dissipation. At 4 A continuous, the junction-to-ambient thermal resistance will need a solid pour on the cathode tab side to keep the die below 150°C in practice.","metaTitle":"STPS4S200UFN Schottky Rectifier, 200 V 4 A, SMA Flat Leads","metaDescription":"STPS4S200UFN is an obsolete 200 V 4 A Schottky rectifier in SMAflat Notch package, rated to 175°C junction.","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":"ECOPACK®2","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":"STPS4","Capacitance @ Vr, F":"-","Supplier Device Package":"SMAflat Notch","Current - Reverse Leakage @ Vr":"5 mA @ 200 V","Voltage - DC Reverse (Vr) (Max)":"200 V","Current - Average Rectified (Io)":"4A","Operating Temperature - Junction":"-40°C~175°C","Voltage - Forward (Vf) (Max) @ If":"870 mV @ 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0a2fe24da1146b0dbec699772787de3c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS4S200UFN/alternatives.json"},"ai":{"faq":[{"question":"Is STPS4S200UFN obsolete?","answer":"Yes, STMicroelectronics lists the STPS4S200UFN as obsolete."},{"question":"What is the replacement for STPS4S200UFN?","answer":"No official replacement order code is listed by STMicroelectronics. For an existing BOM, the closest path is to search within the STPS4 family for a currently active 200 V, 4 A Schottky in a similar SMA-flat package, or to qualify a functionally equivalent part from another manufacturer that matches the 200 V, 4 A rating, 870 mV forward drop, and 175°C junction temperature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS4S200UFN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS4S200UFN 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}}