{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE22HE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE22HE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE22HE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE22HE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® Automotive TVS, 1.5KE22HE3/73, Zener, 1500W peak pulse, 17.8V standoff, DO-201AA axial, AEC-Q101.","salesMarkdown":"## What the 1500W rating means for your protection design The 1.5KE22HE3/73: Its 17.8V reverse standoff voltage protects 18V rails, clamping transients to 31.9V at 47A (10/1000µs waveform). The 19.8V minimum breakdown ensures the device starts conducting before the protected circuit's absolute maximum is reached. ## Lifecycle reality — obsolete but available Vishay has marked the 1.5KE22HE3/73 as obsolete. No official successor order code is recorded. For new designs, a functionally equivalent TVS with the same 1500W rating and DO-201AA package should be selected from Vishay's active TransZorb portfolio. ## Package and board integration The DO-201AA (DO-27) axial leaded package is a through-hole form factor suited for point-to-point wiring or PCB mounting with 0.040-inch diameter holes. The single unidirectional channel protects one rail per device.","metaTitle":"1.5KE22HE3/73 Vishay TVS, 1500W, DO-201AA, Automotive","metaDescription":"Obsolete 1.5KE22HE3/73 TVS diode from Vishay, 1500W peak pulse, AEC-Q101 qualified. Sourced to order against RFQ through independent channels.","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":"Tape & Box (TB)","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":"1.5KE22","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"19.8V","Voltage - Clamping (Max) @ Ipp":"31.9V","Voltage - Reverse Standoff (Typ)":"17.8V","Current - Peak Pulse (10/1000µs)":"47A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5KE22HE3/73 used for?","answer":"It is a 1500W transient voltage suppressor (TVS) diode for protecting 18V DC power rails in automotive electronics. AEC-Q101 qualification means it meets the reliability and temperature requirements for under-hood and engine-bay environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE22HE3-73","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/1.5KE22HE3-73 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}}