{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH4R02RL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH4R02RL","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH4R02RL","factsUrl":"https://icboms.com/api/mcp/products/STTH4R02RL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH4R02RL, Fast Recovery Diode, 200 V, 4 A, 30 ns trr, DO-201AB Axial, Through Hole, Tape & Reel.","salesMarkdown":"## 30 ns reverse recovery — what it buys you The STTH4R02RL is a 200 V, 4 A fast-recovery rectifier from STMicroelectronics built on standard planar technology. The 1.25 V forward drop at 12 A is a pulsed rating — the continuous 4 A average is the number to size the heatsink against. ST lists the STTH4R02RL as obsolete. ## Package and thermal fit The DO-201AB axial-lead package (also known as DO-32) is a through-hole form factor that clips into a heatsink or solders into a board with lead bending. Junction temperature is rated to 175 °C max, which gives headroom in high-ambient environments like enclosed power supplies or motor-drive cabinets — but the 4 A continuous rating needs derating above 100 °C case temperature, typical for this package class.","metaTitle":"STTH4R02RL Fast Recovery Diode, 200 V, 4 A, 30 ns trr","metaDescription":"STTH4R02RL is an obsolete STMicroelectronics 200 V, 4 A fast recovery diode with 30 ns trr in DO-201AB 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)","Technology":"Standard","Mounting Type":"Through Hole","Package / Case":"DO-201AB, DO-32, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH4R02","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-201AB","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":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"1.25 V @ 12 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2807","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6ff59b5fa03d09cd172915f6b2c663f4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH4R02RL/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of STTH4R02RL?","answer":"The reverse recovery time (trr) is 30 ns, which qualifies it as an ultrafast rectifier for switching applications up to several hundred kilohertz."},{"question":"What is the replacement for STTH4R02RL?","answer":"No official replacement order code is listed by STMicroelectronics. For a pin-compatible substitute, look for a 200 V, 4 A ultrafast rectifier in DO-201AB with trr at or below 30 ns from another manufacturer — verify forward voltage and reverse leakage against your circuit's limits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH4R02RL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH4R02RL 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}}