{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH4R02B","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH4R02B","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH4R02B","factsUrl":"https://icboms.com/api/mcp/products/STTH4R02B","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH4R02B, Fast Recovery =< 500ns, > 200mA (Io), Diode Type Standard, Surface Mount, TO-252-3, DPAK, 30 ns trr, 200 V, 4 A, 1.05 Vf @ 4 A, 3 µA @ 200 V leakage, 175°C junction.","salesMarkdown":"## Diode selection note: STTH4R02B The STMicroelectronics STTH4R02B is a standard fast-recovery rectifier diode in the DPAK surface-mount package, designed for applications requiring a reverse recovery time of 30 ns at 200 V and 4 A average rectified current. With a maximum forward voltage of 1.05 V at 4 A and a reverse leakage of 3 µA at 200 V, it suits high-efficiency rectification in switch-mode power supplies, freewheeling diodes, and snubber circuits where fast turn-off reduces switching losses. The 30 ns reverse recovery time categorises this as a fast-recovery diode, meaning it can switch off quickly after forward conduction. ## Obsolete — sourcing this line item The base product number STTH4R02 may have a currently-manufactured variant, but the STTH4R02B suffix is discontinued. Sourcing is through the independent distribution channel, where we locate new-old-stock or surplus inventory against an RFQ.","metaTitle":"STTH4R02B Fast Recovery Diode, 30 ns trr, 200 V, 4 A, DPAK","metaDescription":"STTH4R02B fast-recovery rectifier from STMicroelectronics: 200 V, 4 A, 30 ns trr, DPAK. Specifications and sourcing details.","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","Diode Type":"Standard","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH4R02","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":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"1.05 V @ 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6ff59b5fa03d09cd172915f6b2c663f4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH4R02B/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy STTH4R02B?","answer":"STTH4R02B is obsolete and not available from the original manufacturer. We source it through independent distribution against an RFQ. Submit a request for current availability and pricing; each order is quoted individually."},{"question":"What are the specifications of STTH4R02B?","answer":"STTH4R02B is a standard fast-recovery rectifier: 200 V reverse voltage, 4 A average forward current, 30 ns reverse recovery time, 1.05 V forward drop at 4 A, 3 µA leakage at 200 V, 175°C maximum junction temperature. Package is DPAK (TO-252-3)."},{"question":"What is the replacement for STTH4R02B?","answer":"No direct official successor is listed. The base part number STTH4R02 may have active variants; check STMicroelectronics' current portfolio for a fast-recovery 200 V, 4 A diode in DPAK. For an exact drop-in, we can search available stock against your required quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH4R02B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH4R02B 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}}