{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6277HE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1N6277HE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6277HE3-73","factsUrl":"https://icboms.com/api/mcp/products/1N6277HE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® Zener TVS, 1N6277HE3/73, 1500W peak pulse, 14.5V reverse standoff, 26.5V clamping, 56.6A peak pulse, DO-201AA axial through-hole, Tape & Box.","salesMarkdown":"## Which part actually died — and what the 1.5 kW rating means for the swap The 1N6277HE3/73 is an Automotive, AEC-Q101 qualified TransZorb® Zener TVS in a DO-201AA axial package — the scorch mark on a failed rail tells you it clamped a transient and gave its life protecting downstream circuitry. Rated 1500 W peak pulse (10/1000 µs waveform), it absorbs the energy spike rather than letting it propagate to loads further down the chain. That 26.5 V ceiling at 56.6 A is what the downstream semiconductor sees — a 1.5 kW TVS buys you a clamping margin wide enough for 12 V automotive rails under load-dump conditions. ## Automotive temp grade and the -55 to 175 °C junction window Junction temperature rated to 175 °C, with a -55 °C cold start floor — this is the under-hood and chassis-domain temperature band. An engine-bay node that sees 150 °C on a summer drive still has margin before the thermal trip. The AEC-Q101 qualification means it passed the automotive stress suite (temperature cycling, humidity bias, power temperature cycling), so it belongs in the protection zone of any 12/24 V automotive control unit. ## Through-hole DO-201AA — what it demands of the board and the assembly run DO-201AA axial leads with through-hole mounting mean it is wave-soldered or hand-soldered into a board — not a reflow-placed surface-mount part. The Tape & Box packaging signals a finished-goods unit count for distribution reels, not a tape-and-reel carrier for automated pick-and-place. If you are restocking a panel, budget manual placement or a through-hole insertion line. Unidirectional single-channel — it clamps positive transients on one polarity. For bidirectional AC rails or reversepolarity events you need the dual-polarity variant in the same series; the 1.5KE base number is the series footprint and the pinout is fixed by the DO-201AA geometry. ## Obsolete — last-time-buy window and what to tell the board-level tech Sourced to order through independent distribution — lot traceability and availability confirmed at RFQ. No authorized-stock claim and no guaranteed inventory; the procurement team quotes the BOM quantity and lead time before committing. For new automotive designs the sourcing reality is the driver — an AEC-Q101 compliant alternative in the same DO-201AA footprint is the design-in path.","metaTitle":"1N6277HE3/73 TVS Diode, 1.5 kW, 14.5V Standoff, DO-201AA","metaDescription":"Obsolete 1N6277HE3/73 Zener TVS, AEC-Q101, 1500W peak pulse, 26.5V clamping.","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":"Tape & Box (TB)","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":"1N6277","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"16.2V","Voltage - Clamping (Max) @ Ipp":"26.5V","Voltage - Reverse Standoff (Typ)":"14.5V","Current - Peak Pulse (10/1000µs)":"56.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6277HE3%2F73/alternatives.json"},"ai":{"faq":[{"question":"Can I still get a quote for 1N6277HE3/73 for volume automotive production?","answer":"The procurement team should confirm the AEC-Q101 compliance requirement is met by any proposed alternative before finalizing the cross-reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1N6277HE3-73","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/1N6277HE3-73 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T16:44:10.388Z","lastPublished":"2026-07-22T16:44:10.388Z","indexable":true}}