{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6121A","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6121A","canonicalUrl":"https://icboms.com/microchip/1N6121A","factsUrl":"https://icboms.com/api/mcp/products/1N6121A","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6121A, Zener TVS diode, 500W peak pulse power, 32.7V reverse standoff, 40.9V breakdown min, 59.1V clamping @ 8.5A, bidirectional, through-hole axial package","salesMarkdown":"## Transient protection for a 32.7V rail — what the ratings mean The 1N6121A is a bidirectional Zener transient voltage suppressor from Microchip Technology, designed to clamp overvoltage transients on a 32.7V nominal rail. Its 500W peak pulse power rating is tested with a 10/1000µs waveform — the standard surge shape for telecom and industrial power supplies. When the surge current reaches 8.5A, the clamping voltage rises to 59.1V max, which sets the upper limit the downstream circuitry must survive. The 40.9V minimum breakdown voltage ensures the device starts conducting before the rail exceeds its absolute maximum rating, providing a safety margin for the protected load. ## Active production — sourcing and lifecycle posture This active status supports long-term BOM planning for programs with multi-year production runs. The base product number is 1N6121; the 'A' suffix typically denotes a tighter tolerance or improved electrical characteristics over the base version.","metaTitle":"1N6121A Zener TVS Diode","metaDescription":"1N6121A Zener transient voltage suppressor, 500W peak pulse power, 32.7V standoff, 40.9V breakdown, 59.1V clamp. Axial leaded, through-hole. Active production.","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":"Through Hole","Package / Case":"B, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Base Product Number":"1N6121","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Voltage - Breakdown (Min)":"40.9V","Voltage - Clamping (Max) @ Ipp":"59.1V","Voltage - Reverse Standoff (Typ)":"32.7V","Current - Peak Pulse (10/1000µs)":"8.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.9450","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c72f565c96d1fb1ddee384734173c93c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between 1N6121 and 1N6121A?","answer":"The base product number is 1N6121. The 'A' suffix on the 1N6121A typically indicates a tighter breakdown voltage tolerance or improved electrical characteristics compared to the base version. Check the respective datasheets for the exact parametric differences."},{"question":"Is the 1N6121A a standard Zener diode or a transient voltage suppressor?","answer":"The 1N6121A is listed as a Zener type in the Circuit Protection category. It functions as a transient voltage suppressor (TVS) diode, using Zener breakdown to clamp overvoltage spikes. Its 500W peak pulse power rating and 10/1000µs surge test waveform confirm it is designed for surge protection, not just voltage regulation."},{"question":"Does the 1N6121A come in a surface mount package?","answer":"No. The 1N6121A is only available in a through-hole axial package (B, Axial). For a surface-mount equivalent, check the Microchip TVS portfolio in DO-214AA or SMB packages with similar voltage and power ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6121A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6121A 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}}