{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE220CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE220CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE220CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE220CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® bidirectional TVS diode, 1.5KE220CA-/51, 1500W peak pulse power, 185V reverse standoff, 328V clamping, DO-201AA axial-lead, Bulk.","salesMarkdown":"## TransZorb bidirectional TVS — 1.5 kW peak pulse, 185 V standoff The 1.5KE220CA-E3/51: The 1500 W rating means the device can absorb a single 10/1000 µs surge up to that power level without failing — a common benchmark for industrial and telecom secondary-side protection where the energy in a lightning-induced transient or inductive kickback must be shunted to ground. ## Clamping parametrics and the 185 V rail decision The 328 V clamp is the voltage the protected circuit must survive — downstream components rated for 350 V or higher have margin; a 250 V-rated capacitor would see its dielectric stressed beyond its maximum at the clamp voltage. The junction temperature derates the peak pulse power above 25°C per the standard TransZorb curve. ## DO-201AA axial-lead package and board integration The through-hole DO-201AA (DO-27) axial package mounts with leads formed to the board or inserted into a terminal block. The 1.5KE series footprint is standard across the TransZorb family — a 1.5KE220CA can be swapped for another 1.5KE voltage variant without layout changes. Supplied in Bulk packaging, suitable for hand-insertion or wave-solder assembly in low-to-medium volume production runs. ## Last Buy status and sourcing posture Vishay has placed the 1.5KE220CA-/51 into Last Buy status — the manufacturer's end-of-life notice is active, and remaining inventory is finite. Sourced through independent distribution channels against an RFQ.","metaTitle":"Vishay 1.5KE220CA-E3/51 TransZorb TVS, 1.5kW, 185V","metaDescription":"Vishay 1.5KE220CA-E3/51 TransZorb bidirectional TVS diode, 1500W peak pulse, 185V reverse standoff, DO-201AA. Last Buy — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Last Time Buy","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE220","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"209V","Voltage - Clamping (Max) @ Ipp":"328V","Voltage - Reverse Standoff (Typ)":"185V","Current - Peak Pulse (10/1000µs)":"4.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest alternative to 1.5KE220CA-/51 in the TransZorb family?","answer":"A functionally similar bidirectional TVS with the same 1.5 kW rating and DO-201AA package would need to match the 185 V standoff and 209 V breakdown — confirm the clamp voltage and peak current against the BOM requirement before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE220CA-E3-51","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/1.5KE220CA-E3-51 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}}