{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE22CHE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE22CHE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE22CHE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE22CHE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, bidirectional Zener TVS diode, 1.5KE22CHE3/54, 1500W peak pulse power, 17.8V reverse standoff voltage, DO-201AA axial package.","salesMarkdown":"## Part identity and what it does on the board The 1.5KE22CHE3/54: It clamps transient overvoltages on a 17.8V nominal rail — the reverse standoff voltage — by breaking down at 19.8V minimum and clamping the surge to 31.9V maximum while conducting up to 47A of peak pulse current (10/1000 µs waveform). The single bidirectional channel protects one line against both positive and negative transients, so no polarity orientation is needed during assembly. ## Lifecycle reality — obsolete, sourced through surplus channels Vishay lists the 1.5KE22CHE3/54 as obsolete. Sourcing is through independent surplus and broker channels; each lot is verified for authenticity and traceability before shipment. The DO-201AA axial footprint is standard, so a replacement from the same family with the same standoff voltage fits without a board spin. ## Temperature range and deployment environment The operating junction temperature range spans -55°C to 175°C, covering the full automotive under-hood and engine-bay thermal profile. The AEC-Q101 Grade 0 equivalent qualification (175°C rated) means the part survives the high ambient temperatures near exhaust manifolds and turbochargers without derating the peak pulse power. Through-hole mounting in the DO-201AA package (also known as DO-27) gives a low thermal resistance path from the junction to the PCB copper — the axial leads conduct heat into the board traces, which matters when the TVS must absorb repetitive pulses, not just a single fault event.","metaTitle":"Vishay 1.5KE22CHE3/54 TVS, 1500W, 17.8V Standoff, DO-201AA","metaDescription":"Obsolete Vishay 1.5KE22CHE3/54 bidirectional TVS diode, 1500W peak pulse, 17.8V reverse standoff, AEC-Q101 automotive grade.","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 & Reel (TR)","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","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 compliance documentation does Vishay provide for this part?","answer":"The 1.5KE22CHE3/54 is part of the Automotive, AEC-Q101 qualified TransZorb® series. Vishay provides AEC-Q101 qualification documentation, RoHS compliance data, and the standard TVS diode datasheet with pulse derating curves and I-V characteristics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE22CHE3-54","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/1.5KE22CHE3-54 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}}