{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH506D","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH506D","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH506D","factsUrl":"https://icboms.com/api/mcp/products/STTH506D","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH506D, Fast Recovery Diode, 600 V, 5 A, 50 ns trr, 1.85 Vf, TO-220AC, Through Hole.","salesMarkdown":"The STMicroelectronics STTH506D is a 600 V, 5 A fast recovery epitaxial diode in a TO-220AC through-hole package. Its 50 ns reverse recovery time (trr) qualifies it for hard-switched power conversion stages — boost PFC front-ends, secondary-side output rectification in flyback and forward converters, and freewheeling diodes in motor-drive snubbers. No official replacement part number is listed by ST; a functionally equivalent fast-recovery diode in the same voltage and current class should be qualified on the board before substituting. The 50 ns reverse recovery time is the key switching parameter. In a continuous-conduction-mode boost PFC operating at 60–100 kHz, a 50 ns trr keeps the reverse-recovery charge low enough that the MOSFET turn-on loss stays manageable without resorting to silicon-carbide diodes. The 5 µA reverse leakage at the 600 V rated blocking voltage is a room-temperature typical; expect the leakage to rise with junction temperature, so the off-state dissipation should be checked at the 175°C limit if the diode runs hot.","metaTitle":"STTH506D 600V 5A Fast Recovery Diode, 50ns trr, TO-220AC","metaDescription":"STMicroelectronics STTH506D 600V 5A fast recovery rectifier, 50 ns trr, 1.85 Vf at 5 A, TO-220AC.","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":"-","Package":"Tube","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"TO-220-2","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH506","Capacitance @ Vr, F":"-","Supplier Device Package":"TO-220AC","Reverse Recovery Time (trr)":"50 ns","Current - Reverse Leakage @ Vr":"5 µA @ 600 V","Voltage - DC Reverse (Vr) (Max)":"600 V","Current - Average Rectified (Io)":"5A","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"1.85 V @ 5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a391ded30ed616e8410c995a708be97c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the STTH506D obsolete?","answer":"Yes, the STTH506D is listed as Obsolete by STMicroelectronics. It is no longer in production and must be sourced from surplus or independent inventory."},{"question":"What is the STTH506D replacement?","answer":"STMicroelectronics has not published an official replacement part number for the STTH506D. A functionally equivalent 600 V, 5 A fast recovery diode with a 50 ns or faster trr in a TO-220AC package should be evaluated on the board before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH506D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH506D 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}}