{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6466US","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6466US","canonicalUrl":"https://icboms.com/microchip/1N6466US","factsUrl":"https://icboms.com/api/mcp/products/1N6466US","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6466US, Zener TVS diode, unidirectional, 30.5V reverse standoff, 33V min breakdown, 47.5V max clamping, 500W peak pulse power (10/1000 µs), SQ-MELF B package, -55°C to 175°C junction.","salesMarkdown":"## 33V breakdown TVS for 30.5V rail protection The 1N6466US is a unidirectional Zener TVS diode from Microchip Technology, designed to clamp transients on a 30.5V reverse standoff rail. Its minimum breakdown voltage is 33V, and the maximum clamping voltage at peak pulse current is 47.5V. ## SQ-MELF package – hermetic surface-mount footprint The 1N6466US comes in a SQ-MELF B package, a hermetic surface-mount ceramic body with metallized end caps. Unlike the plastic DO-41 or SMA packages of the standard 1N6466, the MELF construction offers better moisture resistance and thermal cycling performance for high-reliability or sealed-enclosure designs. Mounting is surface mount – the B suffix indicates the specific MELF outline. The footprint is longer than a standard SOD-123; confirm pad geometry against the supplier device package drawing before layout. ## Active production – sourcing through distribution Availability is confirmed per RFQ – lead time varies with distributor inventory position and order quantity. The base product number is 1N6466. The US suffix denotes the SQ-MELF package variant – the standard 1N6466 is typically through-hole DO-41. They are not pin-compatible; the US version is for surface-mount assemblies only.","metaTitle":"1N6466US Zener TVS Diode – 33V Breakdown, 500W, SQ-MELF","metaDescription":"1N6466US Microchip Zener TVS – 33V min breakdown, 47.5V clamping, 500W peak pulse, -55°C to 175°C, SQ-MELF B package. Active production, surface mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SQ-MELF, B","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Base Product Number":"1N6466","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":"$13.6800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e5a65fed8a348402165405cc04f9ecf4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 1N6466US RoHS compliant?","answer":"The evidence does not state RoHS compliance status. Verify with Microchip's product documentation or your distributor's compliance report before committing the BOM."},{"question":"Can 1N6466US replace the standard 1N6466?","answer":"No – the 1N6466US is a surface-mount SQ-MELF package, while the standard 1N6466 is through-hole. Electrical specs (breakdown, clamping) are similar, but the footprint and mounting method are different. The US variant is for SMD assemblies only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6466US","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6466US 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}}