{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE18AHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE18AHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18AHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE18AHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb Zener TVS, 1.5KE18AHE3/51, 1500W peak pulse, 15.3V standoff, 17.1V breakdown, 25.2V clamp, DO-201AA axial, bulk.","salesMarkdown":"## Lifecycle reality — obsolete, sourced through independent channels Vishay has marked the 1.5KE18AHE3/51 as obsolete. For BOM lines still carrying this MPN, the available stock is genuine Vishay product from end-of-life inventory or surplus channels. Date-code provenance and traceability documentation are verified before shipment. The 1500 W peak pulse rating at 10/1000 µs means this diode can absorb a transient energy pulse typical of automotive load-dump or inductive kickback without failing short — the clamping voltage of 25.2 V keeps the protected rail below the downstream IC's abs-max rating. AEC-Q101 qualification adds the automotive-grade reliability screening: temperature cycling, high-temperature reverse bias, and pre-conditioning for moisture sensitivity. This is the standard for under-hood and chassis-domain electronics where the ambient temperature routinely exceeds 105°C. The 59.5 A peak pulse current at the 10/1000 µs waveform defines the surge-handling capacity — a 15.3 V rail hit with a 60 A transient gets clamped to 25.2 V, which is within the safe operating area of most 30 V-rated downstream MOSFETs and regulators.","metaTitle":"1.5KE18AHE3/51 Vishay Zener TVS, 1500W, DO-201AA","metaDescription":"Vishay 1.5KE18AHE3/51 Zener TVS diode, 1500W peak pulse, 15.3V standoff, AEC-Q101.","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":"1.5KE18","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.2V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"59.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the 1.5KE18AHE3/51 and check current pricing?","answer":"Submit an RFQ through the storefront for the 1.5KE18AHE3/51. No stock-holding claim or lead-time number is published — each lot is verified for date-code authenticity and traceability before shipment."},{"question":"What is the closest alternative to the 1.5KE18AHE3/51 in this Circuit Protection family?","answer":"A functionally similar Zener TVS with the same 1500 W peak pulse and 15.3 V standoff voltage but without the automotive AEC-Q101 qualification may exist in the broader 1.5KE series — confirm the BOM's temperature grade and reliability requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18AHE3-51","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/1.5KE18AHE3-51 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}}