{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH208","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH208","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH208","factsUrl":"https://icboms.com/api/mcp/products/STTH208","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH208, Fast Recovery =< 500ns, > 200mA (Io), 800 V 2 A, 75 ns trr, 1.65 Vf, DO-204AC DO-15 Axial, Through Hole, 175°C Tj.","salesMarkdown":"## 800 V 2 A fast recovery — 75 ns trr The STTH208 is a 800 V, 2 A general-purpose fast recovery diode from STMicroelectronics, in a through-hole DO-15 axial package. Its 75 ns reverse recovery time suits it for continuous-conduction-mode PFC boost stages, flyback snubbers, and secondary-side freewheeling in 400 V bus designs where switching loss matters. ## 75 ns trr — switching loss and snubber design At 75 ns trr the STTH208 recovers fast enough to keep reverse-recovery charge low in a 100 kHz PFC stage, reducing the MOSFET turn-on loss and snubber power dissipation. The 1.65 V forward drop at 2 A is a typical ultrafast-recovery trade-off — the faster the recovery, the higher the Vf. Rated for 175°C maximum junction temperature — this gives headroom in a cramped power supply where ambient around the diode may reach 85°C. The DO-15 axial package relies on the lead length and PCB copper for heat sinking; a 2 A average current at high ambient will need adequate trace width to keep Tj below the ceiling. ## Reverse leakage at rated voltage Maximum reverse leakage is 5 µA at 800 V — a low figure that minimises standby loss in offline supplies. Leakage doubles roughly every 10°C above 25°C, so at 125°C Tj it may reach 40–80 µA, still acceptable for most flyback and PFC applications.","metaTitle":"STTH208 Diode, 800 V 2 A Fast Recovery 75 ns DO-15","metaDescription":"STTH208 general-purpose fast recovery diode, 800 V 2 A, 75 ns trr, DO-15 axial package. Active production, 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":"Cut Tape (CT) Tape & Box (TB)","Technology":"Standard","Mounting Type":"Through Hole","Package / Case":"DO-204AC, DO-15, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH208","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-15","Reverse Recovery Time (trr)":"75 ns","Current - Reverse Leakage @ Vr":"5 µA @ 800 V","Voltage - DC Reverse (Vr) (Max)":"800 V","Current - Average Rectified (Io)":"2A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"1.65 V @ 2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9100","priceTiers":[{"qty":1,"price":"$0.91000","currency":"USD"},{"qty":10,"price":"$0.78700","currency":"USD"},{"qty":100,"price":"$0.54490","currency":"USD"},{"qty":500,"price":"$0.45534","currency":"USD"},{"qty":1000,"price":"$0.38752","currency":"USD"},{"qty":2000,"price":"$0.34513","currency":"USD"},{"qty":5000,"price":"$0.32697","currency":"USD"},{"qty":10000,"price":"$0.30275","currency":"USD"},{"qty":25000,"price":"$0.29975","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6a9cc33d8a439fb211acb372992c4978.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH208/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of STTH208?","answer":"The reverse recovery time (trr) of the STTH208 is 75 ns, making it a fast recovery diode suitable for switching frequencies up to around 100 kHz in typical PFC and flyback circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH208","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH208 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}}