{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH4R02SY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH4R02SY","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH4R02SY","factsUrl":"https://icboms.com/api/mcp/products/STTH4R02SY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH4R02SY, Standard Fast Recovery Diode, 200V 4A, 30ns trr, DO-214AB SMC, -40°C to 175°C junction, Q Automotive series.","salesMarkdown":"## 200 V, 4 A fast-recovery diode in SMC — what the 30 ns trr buys you The STTH4R02SY is a standard fast-recovery diode from STMicroelectronics, rated for 200 V DC reverse and 4 A average forward current, housed in an SMC surface-mount package. Its 30 ns reverse recovery time (trr) places it in the fast-recovery class — the datasheet classifies it as Fast Recovery =< 500ns, > 200mA (Io). This trr is the key parameter for switching applications where stored charge during reverse recovery must be minimised to reduce switching losses and EMI. ## 175°C junction — rated for the under-hood thermal budget The Q Automotive series designation means this diode is characterised and qualified for the thermal cycling and high-ambient conditions found in engine compartments, transmission controllers, and other under-hood modules. For a production run, this diode can be specified without worrying about a mid-lifecycle redesign.","metaTitle":"STTH4R02SY Diode, 200V 4A Fast Recovery, 30ns trr, SMC","metaDescription":"STTH4R02SY standard recovery diode, 200V 4A, 30ns trr, -40°C to 175°C junction. Active production, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":"Q","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"Q Automotive","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Standard","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH4","Capacitance @ Vr, F":"-","Supplier Device Package":"SMC","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":"-40°C~175°C","Voltage - Forward (Vf) (Max) @ If":"1.05 V @ 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0500","priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.85800","currency":"USD"},{"qty":100,"price":"$0.66730","currency":"USD"},{"qty":500,"price":"$0.56558","currency":"USD"},{"qty":1000,"price":"$0.46073","currency":"USD"},{"qty":2500,"price":"$0.43372","currency":"USD"},{"qty":5000,"price":"$0.41307","currency":"USD"},{"qty":12500,"price":"$0.39400","currency":"USD"},{"qty":25000,"price":"$0.39325","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/32d75742b5b8b1961c95500519d5ef8b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH4R02SY/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of STTH4R02SY?","answer":"The reverse recovery time (trr) is 30 ns, which classifies it as a fast-recovery diode per the Fast Recovery =< 500ns, > 200mA (Io) specification."},{"question":"Is STTH4R02SY RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH4R02SY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH4R02SY 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}}