{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1CA-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE9.1CA-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1CA-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1CA-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® bidirectional Zener TVS diode, 1.5KE9.1CA-/54, 1500W peak pulse power, 7.78V reverse standoff, 13.4V clamp, DO-201AA axial package.","salesMarkdown":"## TransZorb bidirectional TVS — 1.5 kW, 7.78 V standoff The 1.5KE9.1CA-E3/54: Breakdown occurs at 8.65 V minimum, so the diode stays out of conduction below that threshold and only clamps when a surge pushes the line past the rail's normal tolerance. The single bidirectional channel handles both positive and negative transients in one package. ## Peak pulse current and thermal envelope The 1500 W rating is the product of clamp voltage and peak current — a 13.4 V clamp × 112 A equals the rated power, so the diode absorbs that energy without exceeding its junction temperature limit of 175 °C. Power line protection is not supported — this is a signal-rail or low-voltage bus protector, not a mains transient suppressor. ## Through-hole axial package and board integration Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE9.1CA-/54 mounts through-hole on the PCB. The axial body sits above the board, so the leads carry the surge current into the die — keep the trace width from the pad to the rail wide enough to handle the 112 A pulse without fusing the copper. The base product number 1.5KE9.1 identifies the voltage family; the CA suffix marks the bidirectional version.","metaTitle":"Vishay 1.5KE9.1CA-E3/54 TransZorb TVS, 1.5kW, 7.78V","metaDescription":"Vishay 1.5KE9.1CA-E3/54 bidirectional TVS diode, 1.5kW peak pulse power, 7.78V reverse standoff, 13.4V clamp. Active production, sourced per RFQ.","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":"TransZorb®","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","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":"1.5KE9.1","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"8.65V","Voltage - Clamping (Max) @ Ipp":"13.4V","Voltage - Reverse Standoff (Typ)":"7.78V","Current - Peak Pulse (10/1000µs)":"112A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I source the 1.5KE9.1CA-/54?","answer":"Submit a request for current pricing and availability — lead time and stock position are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1CA-E3-54","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/1.5KE9.1CA-E3-54 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}}