{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH4L06RL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH4L06RL","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH4L06RL","factsUrl":"https://icboms.com/api/mcp/products/STTH4L06RL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH4L06RL, Fast Recovery Rectifier, 600 V, 4 A, 75 ns trr, DO-201AD Axial, Through Hole, Tape & Reel.","salesMarkdown":"## Fast recovery rectifier for PFC and flyback stages The STTH4L06RL is a 600 V, 4 A fast recovery rectifier from STMicroelectronics in a DO-201AD axial package. Its 75 ns reverse recovery time suits hard-switched power factor correction and flyback output stages where switching losses and EMI need to stay contained. The junction is rated to 175 °C, which gives thermal margin in a cramped PFC boost or secondary-side snubber. The recovery is soft enough that you won't need a large snubber, but the 3 µA leakage at 600 V rated reverse voltage means the off-state losses stay negligible at high line. At 1.3 V forward drop at 3 A, conduction loss is about 3.9 W at full rated current — the axial DO-201AD body with through-hole mounting needs a reasonable lead length or a clip-on heatsink if you push 4 A continuous in a 50 °C ambient. STMicroelectronics lists the STTH4L06RL as obsolete.","metaTitle":"STTH4L06RL Fast Recovery Rectifier, 600 V, 4 A, 75 ns trr","metaDescription":"STTH4L06RL is an obsolete STMicroelectronics 600 V, 4 A fast recovery rectifier with 75 ns trr in DO-201AD axial 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":"Tape & Reel (TR)","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"DO-201AD, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH4L06","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-201AD","Reverse Recovery Time (trr)":"75 ns","Current - Reverse Leakage @ Vr":"3 µA @ 600 V","Voltage - DC Reverse (Vr) (Max)":"600 V","Current - Average Rectified (Io)":"4A","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"1.3 V @ 3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cd54c441a50882c750a39a649f8a34d1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH4L06RL/alternatives.json"},"ai":{"faq":[{"question":"Is STTH4L06RL obsolete?","answer":"Yes, STMicroelectronics lists the STTH4L06RL as obsolete. No official successor has been published. Sourcing is through independent distribution for verified new-old-stock or surplus inventory."},{"question":"What is the reverse recovery time of STTH4L06RL?","answer":"The reverse recovery time is 75 ns, which places it in the fast-recovery class suitable for PFC and flyback applications switching in the 50–100 kHz range."},{"question":"What package does the STTH4L06RL come in?","answer":"It is supplied in a DO-201AD axial-lead package, through-hole mount, on Tape & Reel. The base product number is STTH4L06."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH4L06RL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH4L06RL 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}}