{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6274AHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1N6274AHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6274AHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1N6274AHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor Zener TVS diode, Automotive AEC-Q101 TransZorb®, 11.1V standoff, 137V clamping, 1.5kW peak pulse, 82.4A peak pulse current, DO-201AA axial through-hole, bulk.","salesMarkdown":"## What the 1N6274AHE3/51 actually protects That 137 V clamping ceiling is the number that decides whether the downstream Automotive ECU or power-rail IC survives a load-dump or inductive kickback surge — the TVS clamps the spike before it reaches the semiconductor it protects, then returns to its high-impedance state once the transient clears. Standoff voltage sets the circuit's normal operating ceiling — at 11.1 V typical, the TVS sits idle in a 12 V automotive rail without leaking excessively in standby. Sizing a 1.5 kW TVS around a 12 V rail means selecting a part whose reverse standoff sits above the dc working voltage but below the transient trigger level; the 12.4 V minimum breakdown gives you the margin between normal operation and turn-on. ## Obsolete — sourcing reality and what comes next No L* cross-reference pin-compatible replacement exists in this ledger, which means BOM engineers running a last-time-buy check on a legacy automotive platform need to either confirm remaining independent-distribution inventory or plan a re-design. The base product number 1N6274 anchors the series family — the full series should be searched for any later Automotive AEC-Q101 TVS in the same voltage class before committing to a substitute.","metaTitle":"1N6274AHE3/51 Zener TVS Diode, 11.1V Standoff, 1.5kW Peak","metaDescription":"Obsolete Vishay 1N6274AHE3/51 automotive Zener TVS — 11.1V standoff, 137V clamping, 1.5kW peak pulse, DO-201AA axial.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"Automotive, AEC-Q101, TransZorb®","Package":"Bulk","Applications":"Automotive","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6274","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"12.4V","Voltage - Clamping (Max) @ Ipp":"137V","Voltage - Reverse Standoff (Typ)":"11.1V","Current - Peak Pulse (10/1000µs)":"82.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6274AHE3%2F51/alternatives.json"},"ai":{"faq":[{"question":"Is 1N6274AHE3/51 still available and where can I source it?","answer":"Independent distribution channels are the sourcing route — availability and lot traceability are confirmed at RFQ, not by any fixed stock record."},{"question":"Is there a pin-compatible replacement for the 1N6274AHE3/51?","answer":"The 1N6274 base number may help identify the nearest series successor in Vishay's Automotive AEC-Q101 TVS lineup, but a pin-compatible substitute is not confirmed here — sourcing a replacement requires an engineering comparison against the target circuit's standoff voltage, clamping ceiling, 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/1N6274AHE3-51","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/1N6274AHE3-51 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T16:37:04.997Z","lastPublished":"2026-07-22T16:37:04.997Z","indexable":true}}