{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH1506TPI","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH1506TPI","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH1506TPI","factsUrl":"https://icboms.com/api/mcp/products/STTH1506TPI","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH1506TPI ultrafast high-voltage diode, 600V Vr, 15A average rectified current per diode, 35ns trr, 3.6V Vf at 15A, series pair configuration, TOP-3I through-hole package, active.","salesMarkdown":"## 35 ns trr — the switching edge this part exists to deliver The STTH1506TPI is an ultrafast high-voltage rectifier from STMicroelectronics, built as a pair of diodes in series inside a single TOP-3I through-hole package. That 35 ns trr places it squarely in the ultrafast class for 600 V boost diodes, PFC stages, and output rectification in switch-mode power supplies where the recovery tail of a standard fast diode would cost efficiency or blow the thermal budget. The series connection inside one package simplifies layout for voltage-doubler or center-tapped topologies — two diodes, one placement, one heatsink interface. ## 3.6 V forward drop at 15 A — plan the heatsink Forward voltage is 3.6 V maximum at 15 A per diode. That is a conduction loss of 54 W per diode at full rated current, so the TOP-3I insulated tab needs a proper heatsink and thermal interface — the junction limit is 150 °C. The insulated tab is a real advantage here: no insulating washer needed, which cuts thermal resistance and assembly steps. If your design runs the diodes at a fraction of the 15 A rating, Vf drops, but always size the heatsink for the worst-case junction temperature at your operating point. ST lists the STTH1506TPI as an active product.","metaTitle":"ST STTH1506TPI ultrafast diode, 600V 15A series pair","metaDescription":"STTH1506TPI ultrafast high-voltage diode: 600V Vr, 15A per diode, 35ns trr, 3.6V Vf at 15A. TOP-3I through-hole. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tube","Technology":"Standard","Mounting Type":"Through Hole","Package / Case":"TOP-3 Insulated","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH1506","Diode Configuration":"1 Pair Series Connection","Supplier Device Package":"TOP-3I","Reverse Recovery Time (trr)":"35 ns","Current - Reverse Leakage @ Vr":"20 µA @ 600 V","Voltage - DC Reverse (Vr) (Max)":"600 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"3.6 V @ 15 A","Current - Average Rectified (Io) (per Diode)":"15A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.5200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c993d9b57b92991b88ee1b0609a79399.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the reverse recovery time (trr) of STTH1506TPI?","answer":"The reverse recovery time is 35 ns, which qualifies it as an ultrafast diode for 600 V boost and PFC applications."},{"question":"Is STTH1506TPI pin compatible with standard TOP-3 packages?","answer":"The STTH1506TPI uses the TOP-3I (insulated) package. The pinout matches standard TOP-3 through-hole footprints, but the insulated tab means the mounting surface is electrically isolated — no mica washer needed. Verify the tab insulation rating against your system's isolation requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH1506TPI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH1506TPI 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}}