{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6271AHE3_A/D","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1N6271AHE3_A-D","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6271AHE3_A-D","factsUrl":"https://icboms.com/api/mcp/products/1N6271AHE3_A%2FD","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor Zener/TransZorb® TVS diode, 1N6271AHE3_A/D, 1500W peak pulse, 8.55V reverse standoff, 14.5V clamping max, 103A peak pulse, AEC-Q101, DO-201AA axial, -55°C to 175°C TJ.","salesMarkdown":"The 1N6271AHE3_A/D: 1500 W peak pulse at the 10/1000 µs wave shape is the defining rating for this part — it tells you the part survives a single 10/1000 µs transient (the automotive load-dump wave) at 1500 W without degradation, which translates directly to how much surge energy the downstream circuit sees before the clamp settles. On a 12 V automotive rail the nominal standoff is 8.55 V typ — the TVS sits idle during normal operation and turns on hard only when the line spikes above that threshold. The minimum breakdown of 9.5 V gives the window between normal operation and first turn-on, which is the designer's headroom for tolerance stack-up on the 12 V rail. ## AEC-Q101 automotive qualification and thermal margin The series designation Automotive, AEC-Q101, TransZorb® means this part passed the automotive discrete qualification stress battery — including humidity, temperature cycling, and surge life — under the AEC-Q101 standard, the discrete-semiconductor counterpart to AEC-Q100. The -55°C to 175°C junction temperature rating covers the full under-hood cold-crank to hot-soak band; an engine-bay ECU that runs at 150°C junction still has 25°C of margin before the thermal limit. The supplier device package is 1.5KE, which is the Vishay factory footprint code for this body style — the thermal resistance from junction to lead is set by the DO-201AA package geometry, so heatsinking calculations should reference the 1.5KE thermal curve, not a generic DO-201 estimate. ## DO-201AA axial — board integration context Through-hole DO-201AA (also called DO-27 in some sourcing systems) accepts hand or wave solder and provides generous lead-to-body clearance for high-current surge paths. The axial orientation and the tape-and-box packaging mean this part ships in a lead-form compatible with automated axial insertion — the tape pitch and lead straighten requirements for insertion equipment should be verified against the assembly tooling. The single unidirectional channel means this part clamps one polarity only; if bipolar protection is required a second part must be added in reverse series or a bidirectional variant selected from the same 1N6271 family. The part carries an Active product status — it is not flagged as NRND or discontinued. The base product number 1N6271 groups it into the broader 1N6271 series, so alternative voltage choices within that family carry the same pinout and package.","metaTitle":"Vishay 1N6271AHE3_A/D TVS Diode, 1500W, 14.5V Clamp","metaDescription":"Vishay 1N6271AHE3_A/D unidirectional TVS Zener, AEC-Q101, 1500W peak pulse at 14.5V clamping, 8.55V standoff, -55°C to 175°C TJ. 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":"1N6271","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"9.5V","Voltage - Clamping (Max) @ Ipp":"14.5V","Voltage - Reverse Standoff (Typ)":"8.55V","Current - Peak Pulse (10/1000µs)":"103A"}},"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/1N6271AHE3_A%2FD/alternatives.json"},"ai":{"faq":[{"question":"What is the 1N6271AHE3_A/D used for?","answer":"It is a unidirectional Zener-based transient voltage suppressor (TransZorb®) in the DO-201AA package, qualified AEC-Q101 for automotive applications. The 8.55 V standoff, 9.5 V minimum breakdown, and 14.5 V clamping rating position it as a primary protection clamp on 12 V automotive rails — load-dump, inductive kick, and reverse-battery transients all flow through the 1500 W peak pulse rating before the clamp voltage is reached."},{"question":"What 1.5KE family alternative shares the same footprint?","answer":"The base product number 1N6271 places this in the Vishay 1.5KE series — alternate voltage selections within that series carry the same DO-201AA pinout and peak pulse rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6271AHE3_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/1N6271AHE3_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}}