{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20CHE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE20CHE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CHE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20CHE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb®, TVS Zener Diode, 1.5KE20CHE3/54, 1500W, 16.2V Standoff, 29.1V Clamp, Bidirectional, DO-201AA Axial, Tape & Reel.","salesMarkdown":"## Automotive-grade TVS in a through-hole axial package The 1.5KE20CHE3/54: The bidirectional configuration means a single device clamps transients of either polarity — useful on AC-coupled or floating lines where the signal swings both sides of ground, reducing component count on the PCB. Rated 1500W for a 10/1000 µs exponential waveform, the 1.5KE20CHE3/54 absorbs high-energy transients like load-dump or inductive kickback without failing short. The 16.2V standoff voltage means the diode stays transparent below that DC or peak-AC level; above it, breakdown starts at 18V minimum and the clamp holds at 29.1V maximum, limiting the voltage seen by the protected circuit. The 175°C junction rating is typical for AEC-Q101-qualified parts, allowing placement near heat sources like exhaust manifolds or turbocharger electronics. ## Obsolete — sourcing through independent channels Vishay has marked the 1.5KE20CHE3/54 as obsolete. For new designs, consider Vishay's current automotive TransZorb® family in the same DO-201AA package — the electrical ratings (standoff, clamp, peak pulse) vary by suffix. A cross-reference search against the 16.2V standoff and 1500W rating will identify a pin-compatible active ordering code.","metaTitle":"1.5KE20CHE3/54 Vishay TVS Diode, 1500W, Bidirectional","metaDescription":"Vishay 1.5KE20CHE3/54 automotive TVS diode, 1500W peak pulse, 16.2V standoff, 29.1V clamp, AEC-Q101, DO-201AA axial. Obsolete — sourced to order against RFQ.","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":"1.5KE20","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"18V","Voltage - Clamping (Max) @ Ipp":"29.1V","Voltage - Reverse Standoff (Typ)":"16.2V","Current - Peak Pulse (10/1000µs)":"51.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 1.5KE20CHE3/54?","answer":"The 1.5KE20CHE3/54 is obsolete but available through independent distribution."},{"question":"What is the closest pin-compatible alternative to 1.5KE20CHE3/54?","answer":"The closest functional alternative is another 1500W bidirectional TransZorb® in DO-201AA with a 16.2V standoff — the exact active ordering code depends on the desired breakdown tolerance and AEC-Q101 grade. A parametric search against these three constraints will yield the correct current part."},{"question":"What compliance documentation does Vishay provide for 1.5KE20CHE3/54?","answer":"As an AEC-Q101-qualified part, the 1.5KE20CHE3/54 is supported by Vishay's standard automotive-grade documentation: RoHS compliance declaration, REACH SVHC disclosure, and AEC-Q101 test data (preconditioning, HTRB, H3TRB, temperature cycling). These documents are available upon request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CHE3-54","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/1.5KE20CHE3-54 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}}