{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6109AUS/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6109AUS-TR","canonicalUrl":"https://icboms.com/microchip/1N6109AUS-TR","factsUrl":"https://icboms.com/api/mcp/products/1N6109AUS%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6109AUS/TR Zener TVS diode, 500W peak pulse power, 12.35V breakdown minimum, 9.9V reverse standoff, bidirectional single-channel, SQ-MELF hermetic surface-mount package.","salesMarkdown":"## What this Zener TVS protects and where it fits The 1N6109AUS/TR is a 500W peak pulse power Zener TVS diode from Microchip Technology, designed to clamp transients on a 9.9V nominal rail. Its minimum breakdown voltage of 12.35V ensures the device starts conducting before the protected circuitry sees damaging overvoltage. Bidirectional, single-channel construction means it guards a signal pair or a single-ended line against both positive and negative surges without needing two diodes back-to-back. The SQ-MELF (B) package is a hermetic ceramic body — no moisture absorption, no popcorn cracking during reflow. This makes it a fit for military, aerospace, and downhole environments where plastic SMD packages would be a reliability risk. ## Peak pulse power and clamping — the numbers that matter Rated 500W peak pulse power per the 10/1000µs waveform. At that pulse the maximum clamping voltage is 18.2V at a peak pulse current of 27.5A. For a 9.9V rail that leaves 8.3V of headroom above the standoff — enough to absorb most transients without exceeding the downstream IC's absolute maximum. The 175°C ceiling is 25°C higher than standard TVS diodes — important when the device sits near a hot power supply or in an engine bay. ## Active lifecycle — no end-of-life worry Microchip lists the 1N6109AUS/TR as Active.","metaTitle":"1N6109AUS/TR Zener TVS Diode – 500W, 12.35V Breakdown","metaDescription":"Microchip 1N6109AUS/TR Zener TVS diode: 500W peak pulse power, 12.35V breakdown min, 9.9V reverse standoff. Active lifecycle. SQ-MELF hermetic 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":"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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"B, SQ-MELF","Voltage - Breakdown (Min)":"12.35V","Voltage - Clamping (Max) @ Ipp":"18.2V","Voltage - Reverse Standoff (Typ)":"9.9V","Current - Peak Pulse (10/1000µs)":"27.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$18.3600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5dbd5050221203b922ebce5a7a6e86e6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1N6109AUS/TR?","answer":"Within the same Microchip 1N6xxxAUS family, the 1N6108AUS/TR has a lower breakdown voltage (11.4V min) and the 1N6110AUS/TR a higher one (13.3V min). All share the same SQ-MELF (B) package and 500W rating, so they are footprint-compatible. For a direct drop-in replacement with identical ratings, stick with the 1N6109AUS/TR."},{"question":"Is 1N6109AUS/TR RoHS compliant?","answer":"The evidence does not list RoHS compliance status. The SQ-MELF package is a hermetic ceramic construction that typically does not contain restricted substances, but the buyer should verify the specific date code or request a certificate of compliance from the supplier."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6109AUS-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6109AUS-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}}