{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE20CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® series, TVS diode, bidirectional, 1.5kW peak pulse, 17.1V reverse standoff, DO-201AA axial, bulk.","salesMarkdown":"## Clamping voltage and pulse current — the fit decision The 1.5KE20CA-E3/51: When a transient hits, the diode clamps at 27.7 V maximum while conducting 54.2 A peak pulse current (10/1000 µs). That clamping ceiling tells you the downstream silicon must survive 27.7 V without avalanche breakdown — a 30 V-rated MOSFET has 2.3 V of headroom; a 24 V-rated part does not. The bidirectional configuration (single die, symmetrical breakdown) means it clamps equally on positive and negative transients — useful on AC signal lines or DC rails where reverse polarity is a risk. No power-line protection feature is built in, so this is a signal-rail or low-power bus protector, not a mains-side suppressor. The axial DO-201AA body handles the 1.5 kW pulse without cracking the epoxy encapsulation, but the lead length and PCB copper area set the steady-state thermal resistance. Through-hole DO-201AA (also known as DO-27) axial leads — the body diameter is about 5.3 mm, lead diameter 1.3 mm. The hole diameter on the PCB should be 1.0–1.1 mm for a solid solder fillet; lead spacing is non-standard, so bend the leads to fit a 0.4-inch or 10 mm pitch on the board. Supplied in bulk (/51 suffix indicates bulk packaging, 51 pieces per bag). No tape-and-reel option; hand-insertion or tube-fed wave-solder only.","metaTitle":"1.5KE20CA-E3/51 Vishay TVS, 1.5kW, 17.1V Standoff","metaDescription":"Vishay 1.5KE20CA-E3/51 TransZorb® bidirectional TVS, 1500W peak pulse, 17.1V reverse standoff, DO-201AA. Last Buy — sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Last Time Buy","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":"$1.5400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 1.5KE20CA-/51 and get a price?","answer":"This part is in Last Buy status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CA-E3-51","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/1.5KE20CA-E3-51 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}}