{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS20M120STN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS20M120STN","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS20M120STN","factsUrl":"https://icboms.com/api/mcp/products/STPS20M120STN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS20M120STN Schottky rectifier, 20 A average rectified current, 120 V DC reverse voltage, 840 mV forward drop at 20 A, fast recovery <500 ns, TO-220-3 through-hole package.","salesMarkdown":"## 20 A, 120 V Schottky rectifier — fast recovery for switched-mode supplies The STMicroelectronics STPS20M120STN is a 20 A, 120 V Schottky rectifier in a TO-220AB through-hole package, specified for fast recovery (<500 ns at >200 mA). It is designed for high-frequency rectification in switch-mode power supplies, freewheeling diodes, and polarity protection where low forward voltage and fast switching are needed. The 840 mV forward drop at the full 20 A rating keeps conduction losses manageable in a single-device TO-220 footprint. STMicroelectronics lists the STPS20M120STN as Obsolete. No direct successor is published in the available records. Buyers should evaluate alternative Schottky rectifiers in the same current and voltage class for new designs. ## Thermal and mechanical — what the TO-220AB package demands The TO-220AB narrow-lead package (ST's TO-220AB Narrow Leads variant) is a through-hole, single-diode footprint with the anode on the tab. The 275 µA reverse leakage at 120 V is a room-temperature figure; leakage doubles roughly every 10°C above 25°C, so derate the junction temperature budget for high-ambient enclosures.","metaTitle":"STPS20M120STN Schottky Rectifier, 20 A, 120 V, Fast Recovery","metaDescription":"STPS20M120STN Schottky rectifier: 20 A average, 120 V reverse, 840 mV Vf at 20 A, fast recovery <500 ns. TO-220AB package. 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","Technology":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS20","Capacitance @ Vr, F":"-","Supplier Device Package":"TO-220AB Narrow Leads","Current - Reverse Leakage @ Vr":"275 µA @ 120 V","Voltage - DC Reverse (Vr) (Max)":"120 V","Current - Average Rectified (Io)":"20A","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"840 mV @ 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e4dc13dd961e24f6a5359945d7340362.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS20M120STN/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy STPS20M120STN?","answer":"STPS20M120STN is obsolete from the manufacturer."},{"question":"Is STPS20M120STN obsolete?","answer":"Yes, STMicroelectronics lists the STPS20M120STN as Obsolete. No direct replacement has been published."},{"question":"What is the maximum junction temperature of STPS20M120STN?","answer":"The maximum junction temperature is 150°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS20M120STN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS20M120STN 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}}