{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS20120D","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS20120D","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS20120D","factsUrl":"https://icboms.com/api/mcp/products/STPS20120D","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS20120D, Schottky diode, 120 V reverse, 20 A average rectified, 930 mV Vf at 20 A, TO-220AC package, 175°C max junction temperature.","salesMarkdown":"## 120 V, 20 A Schottky in a TO-220AC — what it handles The STPS20120D is a 120 V, 20 A Schottky rectifier from STMicroelectronics in a through-hole TO-220AC package. It's built for the output stage of switch-mode power supplies, freewheeling diodes in motor drives, and polarity protection in battery-fed circuits — anywhere you need low forward drop and fast switching with a 175°C max junction temperature. At 20 A the forward drop is 930 mV — that's the conduction loss floor at full load. The 20 µA reverse leakage at 120 V is typical for a 120 V Schottky; it rises with temperature, so the thermal budget at high Tj is dominated by leakage, not forward drop. The 175°C junction rating gives headroom for aggressive heatsink sizing in confined enclosures. ST lists the STPS20120D as Active. ROHS3 compliant.","metaTitle":"STPS20120D Schottky Diode, 120V 20A TO-220AC","metaDescription":"STPS20120D Schottky rectifier, 120 V reverse, 20 A forward, 930 mV Vf at 20 A, 175°C Tj, TO-220AC. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tube","Technology":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-2","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS20120","Capacitance @ Vr, F":"-","Supplier Device Package":"TO-220AC","Current - Reverse Leakage @ Vr":"20 µA @ 120 V","Voltage - DC Reverse (Vr) (Max)":"120 V","Current - Average Rectified (Io)":"20A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"930 mV @ 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7800","priceTiers":[{"qty":1,"price":"$1.78000","currency":"USD"},{"qty":10,"price":"$1.47700","currency":"USD"},{"qty":100,"price":"$1.17560","currency":"USD"},{"qty":500,"price":"$0.99474","currency":"USD"},{"qty":1000,"price":"$0.84402","currency":"USD"},{"qty":2000,"price":"$0.80182","currency":"USD"},{"qty":5000,"price":"$0.77167","currency":"USD"},{"qty":10000,"price":"$0.74613","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b6b3f29c382564423ae9b6aad8afd77a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS20120D/alternatives.json"},"ai":{"faq":[{"question":"What is the operating junction temperature of STPS20120D?","answer":"The maximum junction temperature is 175°C."},{"question":"Can STPS20120D be used in high-frequency applications?","answer":"Yes — it's a Schottky diode with fast recovery (≤500 ns at >200 mA), suitable for high-frequency rectification in switch-mode power supplies and PFC stages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS20120D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS20120D 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}}