{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH4R02U","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH4R02U","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH4R02U","factsUrl":"https://icboms.com/api/mcp/products/STTH4R02U","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH4R02U, standard fast recovery diode, 200 V Vr, 4 A Io, 30 ns trr, 1.05 V Vf, DO-214AA SMB, surface mount.","salesMarkdown":"## 200 V, 4 A fast recovery — the 30 ns trr is the gate The STTH4R02U is a standard fast recovery diode from STMicroelectronics, rated for 200 V reverse voltage and 4 A average rectified current. Its 30 ns reverse recovery time (trr) places it in the fast-recovery class for switching power supplies where the diode's turn-off speed directly sets the snubber loss and ringing amplitude. ## Forward drop and thermal budget at 4 A Maximum forward voltage is 1.05 V at 4 A, which at full rated current gives a conduction loss of about 4.2 W before any derating. ## Active production, ROHS3, SMB footprint No LTB notice or successor has been published — the part is a standard catalog item for ongoing designs.","metaTitle":"STTH4R02U 200V 4A Fast Recovery Diode, 30ns trr, SMB","metaDescription":"STTH4R02U from STMicroelectronics: 200V 4A standard fast recovery diode, 30ns trr, DO-214AA SMB. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Standard","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH4R02","Capacitance @ Vr, F":"-","Supplier Device Package":"SMB","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":"$0.9900","priceTiers":[{"qty":1,"price":"$0.99000","currency":"USD"},{"qty":10,"price":"$0.80800","currency":"USD"},{"qty":100,"price":"$0.62820","currency":"USD"},{"qty":500,"price":"$0.53250","currency":"USD"},{"qty":1000,"price":"$0.43378","currency":"USD"},{"qty":2500,"price":"$0.40836","currency":"USD"},{"qty":5000,"price":"$0.38891","currency":"USD"},{"qty":12500,"price":"$0.37096","currency":"USD"},{"qty":25000,"price":"$0.37025","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6ff59b5fa03d09cd172915f6b2c663f4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH4R02U/alternatives.json"},"ai":{"faq":[{"question":"Is STTH4R02U a suitable replacement for STTH4R02?","answer":"The STTH4R02U is the SMB-packaged variant of the base STTH4R02. The 'U' suffix denotes the DO-214AA package; the base part number STTH4R02 may refer to a different package (e.g., DO-201AD through-hole). Electrically the die is the same — 200 V, 4 A, 30 ns trr — but the footprint differs. Confirm the BOM's package before substituting."},{"question":"Does STTH4R02U have lead-free plating?","answer":"The termination finish is matte tin over nickel barrier — standard lead-free for reflow soldering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH4R02U","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH4R02U 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}}