{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6466US/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6466US-TR","canonicalUrl":"https://icboms.com/microchip/1N6466US-TR","factsUrl":"https://icboms.com/api/mcp/products/1N6466US%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6466US/TR, Zener TVS diode, 500W peak pulse power, 30.5V reverse standoff, 47.5V clamping, SQ-MELF B package, Tape & Reel","salesMarkdown":"The 1N6466US/TR is a Zener-type TVS diode from Microchip Technology, listed as Active in production — no last-time-buy clock ticking yet. It clamps transients at 47.5V maximum when the peak pulse current hits 63A under the 8/20µs waveform, which is the standard surge shape for telecom and industrial I/O lines. The reverse standoff voltage is 30.5V, meaning the diode stays off below that rail level and only starts conducting when the transient exceeds the 33V minimum breakdown. For a 24V nominal bus with 5-10% tolerance, this gives enough headroom to avoid nuisance clamping while still protecting downstream silicon rated at 40V or less. ## 500W peak pulse — sizing the energy budget The 63A peak pulse current at 8/20µs is the more aggressive surge. For a procurement buyer, the 500W rating means this part covers typical secondary-side protection on 24V DC supplies and signal lines. ## SQ-MELF B package — board-fit and storage The SQ-MELF B package is a surface-mount ceramic body with metallized end caps. It handles the -55°C to 175°C junction temperature range, which suits outdoor telecom cabinets and under-hood automotive modules.","metaTitle":"1N6466US/TR Zener TVS Diode 500W 30.5V Standoff Microchip","metaDescription":"1N6466US/TR Microchip Zener TVS diode, 500W peak pulse, 30.5V reverse standoff, 47.5V clamping. Active production, SQ-MELF B package. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, B","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"B, SQ-MELF","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"33V","Voltage - Clamping (Max) @ Ipp":"47.5V","Voltage - Reverse Standoff (Typ)":"30.5V","Current - Peak Pulse (10/1000µs)":"63A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.4900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e5a65fed8a348402165405cc04f9ecf4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between 1N6466US and 1N6466US/TR?","answer":"The /TR suffix indicates Tape & Reel packaging for automated assembly. The 1N6466US base part number (without /TR) is typically shipped in bulk tubes or trays. The silicon die, electrical ratings, and package (SQ-MELF B) are identical — the only difference is the shipping format. If your line uses pick-and-place, order the /TR version; for hand-assembly or low-volume rework, the bulk version may be more economical."},{"question":"Can 1N6466US/TR replace 1N6466US?","answer":"Yes — the /TR suffix only changes the packaging format from bulk to Tape & Reel. The electrical specs (30.5V standoff, 33V breakdown, 47.5V clamping, 500W peak pulse) are identical. If your board was designed for the bulk version, the TR version drops in electrically and mechanically. Just confirm your pick-and-place feeder can handle the reel diameter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6466US-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6466US-TR 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}}