{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE220A-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE220A-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE220A-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE220A-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb®, TVS Zener, 1.5KE220A-/54, 1500W, 185V Standoff, 328V Clamp, Unidirectional, DO-201AA, Through Hole.","salesMarkdown":"## 1500 W pulse rating and the protection window for a 185 V rail The 1.5KE220A-E3/54: For a 185 V nominal rail, the reverse standoff voltage (185 V) sits below the normal operating level so the diode stays off during steady state; the breakdown voltage (209 V min) defines the threshold where clamping begins, and the maximum clamp voltage (328 V at 4.6 A peak pulse current) limits the transient energy that reaches the downstream circuit. This is a single-channel, unidirectional device — the cathode band orients toward the positive rail, making it a fit for DC bus clamping in power supplies, industrial controls, and automotive electronics where the transient polarity is known. ## Temperature range and pulse derating The operating junction temperature range spans -55°C to 175°C. At elevated ambient temperatures the peak pulse power must be derated — the 1500 W rating is specified at 25°C; above that the allowable pulse power decreases linearly per the datasheet derating curve. For an enclosure that sees 85°C internal ambient, the effective pulse capability drops to roughly 60% of the 25°C figure. ## Package and board integration Housed in a DO-201AA (DO-27) axial-lead through-hole package, the device body is 1.5KE-series standard. The axial leads require a hole diameter of about 1.1 mm for the lead wire; the body length and diameter determine the keep-out zone for adjacent components. Through-hole construction gives a lower thermal resistance path to the board compared to an equivalent SMD package, which helps with repetitive pulse handling.","metaTitle":"Vishay 1.5KE220A-E3/54 TVS, 1500W, 185V Standoff, DO-201AA","metaDescription":"Vishay 1.5KE220A-E3/54 TransZorb® TVS, 1500W peak pulse power, 185V reverse standoff, 328V clamp. Active, 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":"1.5KE220","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","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":"$0.3246","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1.5KE220A-/54 come in?","answer":"It is supplied in a DO-201AA (DO-27) axial-lead through-hole package."},{"question":"Where can I buy the 1.5KE220A-/54?","answer":"Submit a request for current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE220A-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/1.5KE220A-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}}