{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE18CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE18CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE18CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, Type Zener, 1.5KE18CA-/51, 1500W peak pulse, 15.3V standoff, 25.2V clamp, DO-201AA axial, Bulk.","salesMarkdown":"The 1.5KE18CA-E3/51: The 1.5KE18CA-/51 is officially listed as Obsolete by Vishay General Semiconductor - Diodes Division, meaning the manufacturer has ended production and no further last-time-buy windows are open. Sourcing for this part runs through independent distribution channels — availability is lot-specific and confirmed at the time of an RFQ against your BOM quantity. ## Clamping performance and protection envelope The reverse standoff voltage is 15.3 V typical, meaning the protected rail can run at 15 V nominal without the diode conducting in standby; breakdown starts at 17.1 V minimum, so the device stays off below that threshold and only shunts overvoltage events above it. ## Package and board integration Housed in a DO-201AA (DO-27) axial-lead through-hole package, the 1.5KE18CA-/51 mounts into a 1.1 mm diameter hole on a standard PCB — the axial leads carry the full 59.5 A pulse without fusing, provided the trace width to the pad is sized for the surge current. The operating junction temperature range spans -55°C to +175°C, so the device survives thermal cycling in outdoor or industrial enclosures without derating the peak power at the high end.","metaTitle":"1.5KE18CA-E3/51 Vishay TVS, 1.5kW, 25.2V Clamp","metaDescription":"Obsolete 1.5KE18CA-E3/51 Vishay TransZorb TVS diode, 1500W peak pulse, 15.3V standoff, 25.2V clamp, DO-201AA. 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":"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":"1.5KE18","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.2V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"59.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for 1.5KE18CA-/51?","answer":"Submit an RFQ against your BOM quantity."},{"question":"What is 1.5KE18CA-/51's listed type (Zener) on this Circuit Protection line?","answer":"The device type is Zener — it uses avalanche breakdown to clamp transients, typical for TVS diodes in the TransZorb series."},{"question":"What compliance documentation does Vishay General Semiconductor - Diodes Division provide for 1.5KE18CA-/51 (RoHS, REACH, UL, IEC)?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, or IEC) for this part. Standard Vishay TVS diodes in the TransZorb series are typically RoHS-compliant, but confirm the specific documentation at RFQ time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18CA-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/1.5KE18CA-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}}