{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH810D","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH810D","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH810D","factsUrl":"https://icboms.com/api/mcp/products/STTH810D","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH810D general-purpose fast recovery diode, 1000 V reverse voltage, 8 A average rectified current, 85 ns reverse recovery time, TO-220AC through-hole package, 175°C max junction temperature.","salesMarkdown":"## 1 kV, 8 A fast recovery in a TO-220AC The STTH810D is a general-purpose fast recovery diode from STMicroelectronics, rated for 1000 V reverse voltage and 8 A average rectified current. ## 85 ns trr — snubber and switching-loss implications The 85 ns reverse recovery time places this diode in the fast-recovery class, suitable for hard-switching topologies like PFC boost, output rectification in flyback converters, and snubber circuits. Compared to standard recovery diodes (trr > 500 ns), the STTH810D reduces turn-off losses and allows higher switching frequencies without excessive snubber dissipation. The 2 V forward voltage drop at 8 A is typical for a 1 kV-class fast diode — expect about 16 W conduction loss at full rated current, which the TO-220AC package must shed through a heatsink in continuous operation. ## Through-hole mounting and thermal path The TO-220AC package has a metal tab that is electrically common with the cathode. In a typical PFC or boost circuit, the tab is bolted to a heatsink at system ground potential — confirm isolation if the heatsink is chassis-grounded and the cathode is not at ground. The 175°C junction rating gives extra margin over the usual 150°C limit, useful in high-ambient environments like motor drives or sealed power supplies.","metaTitle":"STTH810D Fast Recovery Diode, 1 kV 8 A, TO-220AC, 85 ns trr","metaDescription":"STTH810D general-purpose fast recovery diode: 1000 V reverse, 8 A average, 85 ns trr, 175°C Tj(max). TO-220AC through-hole. Active, 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":"Tube","Technology":"Standard","Mounting Type":"Through Hole","Package / Case":"TO-220-2","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH810","Capacitance @ Vr, F":"-","Supplier Device Package":"TO-220AC","Reverse Recovery Time (trr)":"85 ns","Current - Reverse Leakage @ Vr":"5 µA @ 1000 V","Voltage - DC Reverse (Vr) (Max)":"1000 V","Current - Average Rectified (Io)":"8A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"2 V @ 8 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3300","priceTiers":[{"qty":1,"price":"$2.33000","currency":"USD"},{"qty":10,"price":"$1.93600","currency":"USD"},{"qty":100,"price":"$1.54110","currency":"USD"},{"qty":500,"price":"$1.30404","currency":"USD"},{"qty":1000,"price":"$1.10646","currency":"USD"},{"qty":2000,"price":"$1.05113","currency":"USD"},{"qty":5000,"price":"$1.01162","currency":"USD"},{"qty":10000,"price":"$0.97813","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9a5cedabe81efb2084564b532ffe657c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH810D/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of STTH810D?","answer":"The STTH810D has a reverse recovery time of 85 ns, making it suitable for fast-switching applications like PFC and flyback converters."},{"question":"Is STTH810D RoHS compliant?","answer":"Yes, the STTH810D is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH810D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH810D 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}}