{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH20R04G","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH20R04G","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH20R04G","factsUrl":"https://icboms.com/api/mcp/products/STTH20R04G","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH20R04G, fast recovery diode, 400 V reverse, 20 A average, 45 ns trr, D2PAK surface mount.","salesMarkdown":"## 45 ns trr — why it matters for the PFC boost stage That trr places it in the ultrafast class, suited for hard-switching topologies like power-factor-correction boost converters and secondary-side output rectification in 400 V DC-bus supplies. ## Obsolete — no official successor listed STMicroelectronics lists the STTH20R04G as Obsolete. ## Parametric profile for the repair or replacement search The 400 V DC reverse voltage and 20 A average rectified current define the primary operating envelope. Forward voltage is 1.7 V at 20 A, which sets the conduction loss at full load. Reverse leakage is 20 µA at 400 V. The 45 ns trr is fast enough for switching frequencies typical of PFC stages, but the designer should verify that the recovery charge does not exceed the switching device's SOA.","metaTitle":"STTH20R04G 400V 20A Fast Recovery Diode, 45ns trr, D2PAK","metaDescription":"STTH20R04G 400V 20A fast recovery diode from STMicroelectronics. 45 ns trr, D2PAK package.","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":"Standard","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D2PAK (2 Leads + Tab), TO-263AB","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH2","Capacitance @ Vr, F":"-","Supplier Device Package":"D2PAK","Reverse Recovery Time (trr)":"45 ns","Current - Reverse Leakage @ Vr":"20 µA @ 400 V","Voltage - DC Reverse (Vr) (Max)":"400 V","Current - Average Rectified (Io)":"20A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"1.7 V @ 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0ba69a2dc459e968a8d8f04af9d077ac.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH20R04G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH20R04G 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}}