{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH4R02BY-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH4R02BY-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH4R02BY-TR","factsUrl":"https://icboms.com/api/mcp/products/STTH4R02BY-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH4R02BY-TR, Automotive AEC-Q101 Fast Recovery Diode, Standard, 200 V, 4 A, 30 ns trr, 1.05 Vf @ 4 A, Surface Mount DPAK (TO-252-3), -40°C to 175°C junction.","salesMarkdown":"That 30 ns trr places it in the ultrafast class for a 200 V, 4 A part — the recovery charge is low enough to keep switching losses manageable in a 100–200 kHz PFC or DC-DC converter. The 1.05 V forward drop at 4 A is a reasonable trade-off for the speed; a slower diode would drop less but ring longer. ## AEC-Q101 and the 175°C junction — under-hood ready That combination is the baseline for automotive under-hood and transmission-mounted rectifier stages — the 175°C Tj max gives headroom for the hot soak conditions a standard 150°C part would derate into. The DPAK (TO-252-3) surface-mount package suits automated assembly on an IMS or FR4 board with a thermal pad pour.","metaTitle":"STTH4R02BY-TR Automotive Fast Recovery Diode, 30 ns trr, 4 A","metaDescription":"STTH4R02BY-TR is an AEC-Q101 qualified fast recovery diode with 30 ns trr, 4 A average current, 200 V reverse voltage, in DPAK package.","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":"Automotive, AEC-Q101","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Standard","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH4","Capacitance @ Vr, F":"-","Supplier Device Package":"DPAK","Reverse Recovery Time (trr)":"30 ns","Current - Reverse Leakage @ Vr":"3 µA @ 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":"1.05 V @ 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/32d75742b5b8b1961c95500519d5ef8b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH4R02BY-TR/alternatives.json"},"ai":{"faq":[{"question":"Is STTH4R02BY-TR automotive qualified (AEC-Q101)?","answer":"Yes, the STTH4R02BY-TR is listed under the Automotive, AEC-Q101 series, confirming qualification to the AEC-Q101 stress test standard for discrete semiconductors used in automotive applications."},{"question":"Is STTH4R02BY-TR obsolete or active?","answer":"The product status is Active. No discontinuation notice is in effect."},{"question":"What package is STTH4R02BY-TR available in?","answer":"It is supplied in a surface-mount DPAK (TO-252-3) package, also designated as SC-63, with 2 leads plus a tab."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH4R02BY-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH4R02BY-TR 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}}