{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH15S12D","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH15S12D","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH15S12D","factsUrl":"https://icboms.com/api/mcp/products/STTH15S12D","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH15S12D, Fast Recovery Diode, Standard Type, 1200V DC Reverse, 15A Average Rectified, 40ns trr, TO-220AC, Through Hole, Tube.","salesMarkdown":"## 1200 V, 15 A, 40 ns — the PFC and snubber diode The STTH15S12D is a fast-recovery epitaxial diode from STMicroelectronics, rated for 1200 V reverse voltage and 15 A average rectified current in a TO-220AC through-hole package. ## 40 ns trr at 1200 V — switching loss anchor The 40 ns trr is specified at the full 15 A forward current and 1200 V blocking voltage. ## 175°C junction — thermal headroom in a TO-220AC Rated for a maximum junction temperature of 175°C, the STTH15S12D can run hotter than the common 150°C-grade fast diodes. In a TO-220AC package with a heatsink, that extra 25°C headroom translates to either higher output current in the same thermal environment or a smaller heatsink for a given load. The 10 µA reverse leakage at 1200 V is a room-temperature figure; at 175°C junction, expect leakage to rise — budget for it in the bias supply design.","metaTitle":"STTH15S12D Fast Recovery Diode, 1200V 15A TO-220AC","metaDescription":"STTH15S12D fast recovery diode from STMicroelectronics: 1200V, 15A, 40ns trr, TO-220AC.","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":"-","Package":"Tube","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"TO-220-2","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH15","Capacitance @ Vr, F":"-","Supplier Device Package":"TO-220AC","Reverse Recovery Time (trr)":"40 ns","Current - Reverse Leakage @ Vr":"10 µA @ 1200 V","Voltage - DC Reverse (Vr) (Max)":"1200 V","Current - Average Rectified (Io)":"15A","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"3.1 V @ 15 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c979f22e6c42b8264d9a0fa75bd66a18.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH15S12D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH15S12D 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}}