{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH30R04WY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH30R04WY","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH30R04WY","factsUrl":"https://icboms.com/api/mcp/products/STTH30R04WY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH30R04WY, Automotive AEC-Q101, Standard Diode, 400 V, 30 A, Fast Recovery ≤ 500 ns, 100 ns trr, DO-247-2 Through Hole.","salesMarkdown":"The STTH30R04WY from STMicroelectronics is an automotive-grade fast recovery diode rated for 400 V reverse voltage and 30 A average forward current, housed in a DO-247 through-hole package. It is qualified to AEC-Q101, meaning it has passed the semiconductor stress tests required for automotive applications such as engine control units, transmission modules, and on-board chargers. The 100 ns reverse recovery time (trr) places it in the fast recovery class, making it suitable for high-frequency rectification in boost PFC stages, output rectifiers in DC-DC converters, and snubber clamp circuits where switching losses and EMI matter. ## Ratings that drive the design The 400 V blocking voltage (Vr) and 30 A average current (Io) define the power envelope: this diode can handle up to 400 V in reverse bias and conduct 30 A continuously. The 100 ns trr is the headline switching parameter: in a 100 kHz PFC stage, that recovery speed keeps turn-off losses manageable and limits ringing without excessive snubbing. Reverse leakage is specified at 15 µA at 400 V, a typical figure for this voltage class. The DO-247 package has a large metal tab for heatsinking. The tab is electrically common with the cathode, so an insulating pad or thermal compound is needed if the heatsink is grounded. ## Lifecycle reality Buyers should verify date codes and request traceability when sourcing from independent channels, as obsolete parts carry a higher risk of counterfeit or refurbished material.","metaTitle":"STTH30R04WY Diode, 400V 30A Fast Recovery, AEC-Q101, DO-247","metaDescription":"STTH30R04WY is an automotive AEC-Q101 fast recovery diode, 400V 30A, 100ns trr, DO-247. Obsolete.","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":"Automotive, AEC-Q101","Package":"Tube","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"DO-247-2 (Straight Leads)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH30","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-247","Reverse Recovery Time (trr)":"100 ns","Current - Reverse Leakage @ Vr":"15 µA @ 400 V","Voltage - DC Reverse (Vr) (Max)":"400 V","Current - Average Rectified (Io)":"30A","Operating Temperature - Junction":"-40°C~175°C","Voltage - Forward (Vf) (Max) @ If":"1.55 V @ 30 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99af7c24ff6b77b9fd77a6f5542a9153.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH30R04WY/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH30R04WY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH30R04WY 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}}