{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE11CA-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE11CA-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE11CA-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE11CA-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® series, Zener TVS diode, 1500W peak pulse, bidirectional, DO-201AA axial, through-hole, bulk.","salesMarkdown":"## Last-time-buy — what it means for your BOM The 1.5KE11CA-E3/51: Vishay lists the 1.5KE11CA-/51 as Last Buy — the manufacturer has announced end-of-life and is accepting final orders. No official successor order code is published for this part; the last-time-buy window is the opportunity to secure lifetime-buy inventory for sustaining production. For existing designs, this is the moment to evaluate a lifetime buy or identify a functional replacement. The TransZorb series is widely second-sourced — a parametric search for a 1500 W bidirectional TVS in a DO-201 package with a 9.4 V standoff voltage will turn up alternatives from other brands, but pin-compatible direct cross-references are not recorded here. ## 1500 W peak pulse — the protection envelope The clamping voltage at that surge level is 15.6 V max, triggered when the reverse standoff voltage of 9.4 V is exceeded. The breakdown voltage range (10.5 V min) defines the threshold where the device starts conducting avalanche current. For a 9.4 V nominal rail (e.g., a 9 V supply with margin), this TVS stays transparent under normal operation and only clamps during a transient. Peak pulse current capability is 96.2 A under the same 10/1000 µs pulse — that figure tells you the surge current the diode can sink before exceeding its thermal limit. ## Package and mounting — through-hole axial DO-201 Housed in a DO-201AA (DO-27) axial-lead package, this is a through-hole device intended for wave-solder or hand-solder assembly. The axial form factor is common in point-to-point wiring, terminal blocks, and legacy PCB layouts where a surface-mount TVS would not fit the copper trace width needed to handle the surge current. The 1.5KE series shares the same footprint as other DO-201 TVS diodes — if your BOM already uses a 1.5KE part, this one drops in electrically and mechanically, provided the standoff and breakdown voltages match. ## Sourcing posture for the last-time-buy Available through independent distribution against an RFQ — no stock-holding claim, no price figure. For a last-time-buy part, the order quantity and delivery schedule should be locked in as soon as possible to secure allocation before the manufacturer's final ship date.","metaTitle":"Vishay 1.5KE11CA-E3/51 TransZorb TVS, 1500W, Bidirectional","metaDescription":"Vishay 1.5KE11CA-E3/51 TransZorb bidirectional TVS diode, 1500W peak pulse, 9.4V standoff, DO-201AA. Last-time-buy — sourced to order against RFQ.","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":"1.5KE11","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"10.5V","Voltage - Clamping (Max) @ Ipp":"15.6V","Voltage - Reverse Standoff (Typ)":"9.4V","Current - Peak Pulse (10/1000µs)":"96.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7245","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power rating of 1.5KE11CA-/51?","answer":"1500 W (1.5 kW) under a 10/1000 µs waveform. The clamping voltage at that level is 15.6 V max, and the peak pulse current is 96.2 A."},{"question":"What package does 1.5KE11CA-/51 come in?","answer":"DO-201AA (DO-27) axial-lead through-hole package. It is supplied in bulk."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE11CA-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/1.5KE11CA-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}}