{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE18CA-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE18CA-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18CA-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE18CA-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, Type Zener, Bidirectional, 1.5KE18CA-/54, 1500W peak pulse, 15.3V reverse standoff, DO-201AA axial, Tape & Reel.","salesMarkdown":"## Clamping a 15.3V rail with 1500W headroom The 1.5KE18CA-E3/54: Its 15.3V reverse standoff voltage (V_RWM) means it sits across a 12V or 15V DC bus without conducting leakage; the breakdown window starts at 17.1V min and the clamping voltage is capped at 25.2V at the full 59.5A peak pulse current. This voltage stack is designed for protecting sensitive downstream silicon from inductive load dumps, lightning-induced surges, and ESD transients on a nominal 12V or 15V supply rail. ## Package and thermal reality for the axial leaded form Housed in the DO-201AA (DO-27) axial leaded package, this through-hole part is intended for point-to-point wiring or PCB mounting with the leads forming the primary thermal path. The junction temperature range spans -55°C to 175°C, which is the full military-grade band — the device dissipates transient energy into the lead wires and the copper pad area on the board, not through a separate tab. The 1500W rating assumes the leads are soldered into a 10×10 mm copper pad per the datasheet's mounting condition; a smaller pad or free-air wiring derates the peak pulse capability.","metaTitle":"Vishay 1.5KE18CA-E3/54 TransZorb TVS, 1500W, 15.3V","metaDescription":"Vishay 1.5KE18CA-E3/54 bidirectional TVS diode, 1500W peak pulse power, 15.3V standoff, DO-201AA. Active production, sourced to order. Request a quote.","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":"TransZorb®","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","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":"1.5KE18","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","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":"$0.3032","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5KE18CA-/54's reverse standoff and clamping voltage?","answer":"The reverse standoff voltage (V_RWM) is 15.3V, meaning it does not conduct leakage below that level. The minimum breakdown voltage is 17.1V, and the maximum clamping voltage at the 59.5A peak pulse current is 25.2V. This makes it suitable for protecting 12V or 15V DC rails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18CA-E3-54","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/1.5KE18CA-E3-54 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}}