{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6621","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6621","canonicalUrl":"https://icboms.com/microchip/1N6621","factsUrl":"https://icboms.com/api/mcp/products/1N6621","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6621 fast recovery rectifier diode, standard type, 440 V reverse voltage, 1.2 A average forward current, 30 ns reverse recovery time, through-hole axial package, bulk.","salesMarkdown":"## Switching-speed and voltage rating for the BOM The 1N6621 is a fast recovery rectifier diode from Microchip Technology, classified with a recovery time under 500 ns at forward currents above 200 mA — the actual 30 ns trr puts it in the fast-switching class for a 440 V part. Rated for 440 V reverse voltage and 1.2 A average forward current, the 1N6621 handles boost-stage and flyback-clamp duties in offline power supplies where the reverse voltage exceeds 400 V bus levels. Forward voltage is 1.4 V maximum at the full 1.2 A forward current — this conduction loss figure sets the thermal budget for the axial-lead package in free-air or heatsink mounting. ## Junction temperature and leakage stability Reverse leakage is only 500 nA at the full 440 V rating — this low leakage at high reverse bias means the diode does not thermally runaway in high-impedance snubber or clamping circuits at elevated temperature. Junction capacitance measures 10 pF at 10 V reverse bias and 1 MHz — a low enough figure that the diode does not load the switching node in a 100 kHz converter beyond the driver's gate-charge budget. The through-hole axial package (DO-41 or equivalent A-case) is a standard footprint that places without tombstoning risk in wave-solder or hand-assembly lines — check the MSL rating before the bake step if the reel has been exposed to humid storage.","metaTitle":"1N6621 Microchip Fast Recovery Diode, 440V 1.2A 30ns","metaDescription":"Microchip 1N6621 fast recovery rectifier, 440V 1.2A with 30ns trr. Active production, through-hole axial package. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Bulk","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"A, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N6621","Capacitance @ Vr, F":"10pF @ 10V, 1MHz","Reverse Recovery Time (trr)":"30 ns","Current - Reverse Leakage @ Vr":"500 nA @ 440 V","Voltage - DC Reverse (Vr) (Max)":"440 V","Current - Average Rectified (Io)":"1.2A","Operating Temperature - Junction":"-65°C~150°C","Voltage - Forward (Vf) (Max) @ If":"1.4 V @ 1.2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.5400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6140a0cdf022053d29db17b8641d23b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6621/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6621","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6621 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}}