{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6127AUS","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6127AUS","canonicalUrl":"https://icboms.com/microchip/1N6127AUS","factsUrl":"https://icboms.com/api/mcp/products/1N6127AUS","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 1N6127AUS, single bidirectional Zener TVS diode, 500W peak pulse power (10/1000µs), 56V reverse standoff, 103.1V clamping, SQ-MELF surface-mount package, -55°C to 175°C junction temperature range.","salesMarkdown":"## 500W bidirectional Zener TVS in SQ-MELF The 1N6127AUS is a single bidirectional Zener TVS diode from Microchip, rated for 500W peak pulse power per the 10/1000µs waveform. The 56V reverse standoff voltage and 103.1V clamping level suit 48V nominal rail protection in industrial and telecom equipment. The SQ-MELF (B) package is a hermetic surface-mount option — the ceramic-to-metal seal gives it an edge over plastic packages in high-reliability or humid environments. ## Bidirectional channel and clamping margin A single bidirectional channel means the device clamps both polarities symmetrically — no orientation concern during assembly, which simplifies pick-and-place and reduces polarity-related rework. The minimum breakdown voltage is 71.3V, giving a ~15V margin above the 56V standoff before the diode starts conducting leakage. At the peak pulse current of 4.8A the clamp holds at 103.1V max, so the downstream circuitry sees a hard ceiling. ## Active production with hermetic package Microchip lists the 1N6127AUS as Active. The SQ-MELF package is a hermetic ceramic body — no moisture sensitivity level concern, no bake-out required before reflow. The -55°C to 175°C junction temperature range covers military and downhole thermal profiles. For BOM planning, the base product number 1N6127 covers the non-surface-mount variants; the AUS suffix identifies this specific surface-mount hermetic version.","metaTitle":"1N6127AUS Zener TVS Diode – 500W, Bidirectional, SQ-MELF","metaDescription":"1N6127AUS from Microchip: single bidirectional Zener TVS, 500W peak pulse power, 56V standoff, 103.1V clamp. Active production, SQ-MELF 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":"1N6127","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)":"71.3V","Voltage - Clamping (Max) @ Ipp":"103.1V","Voltage - Reverse Standoff (Typ)":"56V","Current - Peak Pulse (10/1000µs)":"4.8A"}},"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 1N6127AUS bidirectional?","answer":"Yes, it has one bidirectional channel, clamping both polarities symmetrically. No polarity marking needed on the PCB."},{"question":"What is the peak pulse power rating?","answer":"500W peak pulse power measured with a 10/1000µs waveform. The peak pulse current at that waveform is 4.8A."},{"question":"What package does the 1N6127AUS come in?","answer":"SQ-MELF, B case. It is a hermetic surface-mount package — ceramic body with metal end caps, suitable for high-reliability and moisture-sensitive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6127AUS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6127AUS 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}}