{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20CAHE3_A/D","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE20CAHE3_A-D","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CAHE3_A-D","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20CAHE3_A%2FD","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® Automotive TVS, Bidirectional Zener, 1.5KE20CAHE3_A/D, 1500W, 27.7V Clamp, DO-201AA Axial, AEC-Q101.","salesMarkdown":"## Automotive-grade transient suppressor for 17.1 V rails The Vishay 1.5KE20CAHE3_A/D is a bidirectional TransZorb® TVS diode from the Automotive, AEC-Q101 qualified series, designed to clamp transients on 17.1 V nominal rails. ## What the clamping and breakdown ratings mean for the BOM The 17.1 V reverse standoff voltage (working voltage) means the diode draws negligible leakage below that rail — the protected circuit sees no added load during normal operation. The 19 V minimum breakdown voltage guarantees the avalanche triggers before the rail rises above the downstream component's abs-max rating. A 27.7 V maximum clamp at 54.2 A peak pulse current sets the voltage the protected device must survive during the transient. For a 24 V nominal automotive bus, this clamp stays below the typical 36 V abs-max of most ECUs and sensors, giving margin without needing a second-stage clamp. The single bidirectional channel replaces two unidirectional diodes in antiparallel — saves board space and assembly cost on a 17.1 V signal pair where the transient polarity is unknown. ## Package and board-fit for the DO-201AA axial lead The lead spacing and body diameter match the standard DO-201 footprint. Bend the leads 90° for horizontal board mounting or stand the body vertical; the thermal path to the board is through the leads, so keep the solder fillet full and the trace width adequate for the 54.2 A peak current. ## Lifecycle and supply posture The base product number 1.5KE20 covers a family of voltage variants in the same DO-201 package; the CAHE3 suffix specifically denotes the bidirectional, AEC-Q101 qualified version with the automotive-grade process and test flow.","metaTitle":"1.5KE20CAHE3_A/D Vishay TVS, 1.5kW, 27.7V Clamp, DO-201","metaDescription":"Vishay 1.5KE20CAHE3_A/D bidirectional TVS diode, 1500W peak pulse, 27.7V clamp, AEC-Q101, DO-201AA axial. Active production, quoted to order.","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":"Automotive, AEC-Q101, TransZorb®","Package":"Tape & Box (TB)","Applications":"Automotive","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":"1.5KE20","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"19V","Voltage - Clamping (Max) @ Ipp":"27.7V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"54.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1.5KE20CAHE3_A/D a bidirectional or unidirectional TVS?","answer":"It is a single-channel bidirectional Zener TVS, clamping both positive and negative transients on the same line. One device protects a 17.1 V signal pair without needing two diodes back-to-back."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CAHE3_A-D","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/1.5KE20CAHE3_A-D 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}}