{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE100CAHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE100CAHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE100CAHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE100CAHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Zener type, Automotive grade, AEC-Q101, 1500W peak pulse, 85.5V reverse standoff, 137V clamping, DO-201AA axial, Bulk.","salesMarkdown":"## 1500W TransZorb TVS — what the ratings mean for the protection decision The 1.5KE100CAHE3/51: The 85.5V reverse standoff voltage means the device does not conduct at normal line voltage up to that level; clamping starts at 95V minimum breakdown and hard-limits transients to 137V maximum at the rated 10.9A peak pulse current. For a 48V or 72V nominal DC bus, this provides a 1.8× safety margin before the protected circuit sees overvoltage. The 1500W rating is the peak power the junction can absorb for a single 10/1000µs surge without exceeding the 175°C maximum junction temperature. In a real automotive load-dump or inductive kickback event, the actual energy is the integral of the clamping voltage times the surge current — the 10.9A Ipp figure is the current that produces the full 1500W at the 137V clamp point. ## Automotive AEC-Q101 qualification — what it certifies AEC-Q101 qualification means this TVS passed the automotive stress tests: temperature cycling, high-temperature reverse bias, humidity bias, and ESD robustness per the AEC component technical committee standard. The -55°C to 175°C operating junction range covers under-hood and engine-bay thermal profiles — a 125°C ambient under-hood environment still leaves 50°C margin before the 175°C abs-max junction. The TransZorb series is Vishay's trademarked silicon-avalanche TVS construction, distinct from standard Zener diodes in that the die is optimized for surge energy absorption rather than precision voltage regulation. ## Obsolete — sourcing and replacement path Vishay has marked the 1.5KE100CAHE3/51 as obsolete. No official successor order code is recorded in the lifecycle data. The base product number 1.5KE100 indicates the die design; a non-automotive-grade variant (without the HE3 suffix) may be functionally identical but lacks the AEC-Q101 qualification and the extended temperature screening. A replacement search should match the 85.5V reverse standoff, 137V clamping, and 1500W peak pulse rating — the package and lead spacing are identical across the series, so a board layout change is not required if the replacement is also DO-201AA.","metaTitle":"1.5KE100CAHE3/51 Vishay TVS, 1500W, 85.5V, DO-201AA","metaDescription":"Vishay 1.5KE100CAHE3/51 TransZorb TVS diode, 1500W peak pulse, 85.5V reverse standoff, AEC-Q101 automotive grade. Obsolete — sourced to order against RFQ.","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","Grade":"Automotive","Series":"TransZorb®","Packaging":"Bulk","Part Status":"Obsolete","Applications":"-","Mounting Type":"Through Hole","Qualification":"AEC-Q101","Package / Case":"DO-201AA, DO-27, Axial","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE100","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"95V","Voltage - Clamping (Max) @ Ipp":"137V","Voltage - Reverse Standoff (Typ)":"85.5V","Current - Peak Pulse (10/1000µs)":"10.9A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b6470e7c23af28f3f376ae45aee8e9ef.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE100CAHE3%2F51/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE100CAHE3-51","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/1.5KE100CAHE3-51 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}