{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6279AHE3_A/D","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1N6279AHE3_A-D","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6279AHE3_A-D","factsUrl":"https://icboms.com/api/mcp/products/1N6279AHE3_A%2FD","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor Zener/TVS diode, Automotive AEC-Q101 TransZorb series, 1N6279AHE3_A/D, 1500W peak pulse, 30.6V clamping, 18.8V standoff, DO-201AA axial, through-hole, Tape & Box.","salesMarkdown":"## Three voltages — standoff, breakdown, and clamping The 1N6279AHE3_A/D: The standoff voltage of 18.8 V typ is the continuous reverse-bias level the part holds off during normal operation without conduction. The minimum breakdown of 20.9 V is where the TVS begins to conduct, establishing the protection threshold. On a 24 V nominal rail, 18.8 V standoff gives comfortable headroom above the maximum continuous operating voltage, while 30.6 V clamping keeps the clamped transient below the withstand rating of typical downstream ICs rated for 30 V or 33 V absolute maximum. ## Automotive grade — the temperature and qualification story The -55 to 175 degC junction temperature range covers both cold-start extremes and the under-hood thermal environment, and the 175 degC ceiling gives margin against the DO-201AA package thermal resistance. This is not a commercial-grade part with a higher-spec label bolted on; the AEC-Q101 release and the wide Tj range reflect a part qualified from wafer fab through assembly for automotive deployment, not just tested to the same electrical parameters as a consumer part.","metaTitle":"1N6279AHE3_A/D Vishay TVS Diode, 1500W Peak, 18.8V Standoff","metaDescription":"Vishay 1N6279AHE3_A/D unidirectional TVS diode, 18.8V standoff, 30.6V clamping @ 49A peak pulse, AEC-Q101, DO-201AA axial. Active. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"Automotive, AEC-Q101, TransZorb®","Package":"Tape & Box (TB)","Applications":"Automotive","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6279","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"49A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6279AHE3_A%2FD/alternatives.json"},"ai":{"faq":[{"question":"Is the 1N6279AHE3_A/D a Zener diode or a TVS — what does TransZorb mean?","answer":"TransZorb is Vishay's trademarked name for their unidirectional TVS diode family. The 1N6279AHE3_A/D functions as an overvoltage transient suppressor, not a Zener regulator — the 1500 W peak pulse rating (10/1000 µs) is the key indicator. A classic Zener would be specified at a continuous Zener voltage and power rating; a TransZorb TVS is specified by its standoff voltage, breakdown voltage, and peak pulse clamping performance. Both use a Zener avalanche mechanism, but the construction and ratings are optimised for different use cases."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6279AHE3_A-D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1N6279AHE3_A-D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}