{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6622US","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6622US","canonicalUrl":"https://icboms.com/microchip/1N6622US","factsUrl":"https://icboms.com/api/mcp/products/1N6622US","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6622US fast recovery rectifier diode, 660 V, 1.2 A, 30 ns trr, SQ-MELF A package, surface mount.","salesMarkdown":"## Fast-recovery rectifier for high-voltage switching supplies The Microchip Technology 1N6622US is a standard fast-recovery rectifier diode rated for 660 V DC reverse voltage and 1.2 A average forward current, with a reverse recovery time of 30 ns. This trr places it in the Fast Recovery class (≤500 ns, >200 mA), making it suitable for high-frequency rectification in flyback and forward-converter secondary stages where switching losses matter. Forward voltage is 1.4 V max at 1.2 A, and reverse leakage is only 500 nA at 660 V — the leakage floor stays low enough that self-heating at high line voltage is minimal in a well-laid-out board. The 10 pF capacitance at 10 V, 1 MHz is low enough to avoid significant capacitive coupling in snubber or clamp circuits. ## SQ-MELF package — hermetic surface-mount for harsh environments Housed in an SQ-MELF (A-MELF) surface-mount package, the 1N6622US offers a hermetic ceramic-to-metal seal. This package is standard for high-reliability applications where moisture resistance and thermal cycling endurance are critical — avionics power supplies, downhole instrumentation, and satellite bus converters routinely specify MELF diodes for their solder-joint fatigue life under vibration. The A-MELF footprint is cylindrical with metallized end caps — board layout must account for the barrel geometry to avoid tombstoning during reflow. The package is compatible with standard solder paste stencil apertures for 0.5 mm to 0.8 mm thick boards.","metaTitle":"Microchip 1N6622US Fast Recovery Diode, 660V, 1.2A, 30ns","metaDescription":"Microchip Technology 1N6622US fast recovery rectifier, 660V, 1.2A, 30ns trr, A-MELF surface mount. Active production, sourced to order. Request a quote.","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":"Surface Mount","Package / Case":"SQ-MELF, A","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N6622","Capacitance @ Vr, F":"10pF @ 10V, 1MHz","Supplier Device Package":"A-MELF","Reverse Recovery Time (trr)":"30 ns","Current - Reverse Leakage @ Vr":"500 nA @ 660 V","Voltage - DC Reverse (Vr) (Max)":"660 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":"$8.3400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/aac8096c1ffbd150eb23a7a2c5cc2cd4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6622US/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of the 1N6622US?","answer":"The 1N6622US has a reverse recovery time (trr) of 30 ns, which qualifies it as a Fast Recovery diode (≤500 ns, >200 mA). This speed suits it for switching power supplies operating in the 50–200 kHz range."},{"question":"What package does the 1N6622US come in?","answer":"The 1N6622US is supplied in an SQ-MELF, A package (also referred to as A-MELF). It is a surface-mount, hermetic ceramic package suitable for high-reliability and harsh-environment applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6622US","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6622US 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}}