{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6129AUS","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6129AUS","canonicalUrl":"https://icboms.com/microchip/1N6129AUS","factsUrl":"https://icboms.com/api/mcp/products/1N6129AUS","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6129AUS, bidirectional Zener TVS diode, 86.5 V breakdown minimum, 125.1 V clamping, 500 W peak pulse power, SQ-MELF B package, -55°C to 175°C junction range.","salesMarkdown":"## 86.5 V breakdown, 500 W pulse — SQ-MELF bidirectional Zener The single bidirectional channel clamps transients on both polarities, making it a fit for AC signal lines or dual-supply rails where the surge can swing above or below the reference. The reverse standoff voltage of 69.2 V is the maximum DC or peak AC voltage the protected line can carry without the diode conducting appreciably; above that, the device enters breakdown at 86.5 V minimum and clamps the transient to 125.1 V maximum. The 4 A peak pulse current rating (10/1000 µs) defines the surge the diode can sink while holding the clamp voltage within spec — useful for sizing the protection margin on a 48 V or 60 V DC bus. No power line protection circuitry is integrated; this is a stand-alone Zener TVS, not a rail-clamp array or a multi-channel protector. ## Active production — hermetic SQ-MELF sourcing No stock-holding claim — quoted to order.","metaTitle":"1N6129AUS Zener TVS Diode – 86.5 V Breakdown, 500 W, SQ-MELF","metaDescription":"Microchip Technology 1N6129AUS bidirectional Zener TVS: 86.5 V min breakdown, 125.1 V clamping, 500 W peak pulse, SQ-MELF package.","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":"1N6129","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"B, SQ-MELF","Voltage - Breakdown (Min)":"86.5V","Voltage - Clamping (Max) @ Ipp":"125.1V","Voltage - Reverse Standoff (Typ)":"69.2V","Current - Peak Pulse (10/1000µs)":"4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.2400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5dbd5050221203b922ebce5a7a6e86e6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1N6129AUS a bidirectional Zener?","answer":"Yes, it is a single bidirectional channel, meaning it clamps transients of either polarity. This suits AC-coupled lines or dual-polarity supplies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6129AUS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6129AUS 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}}