{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE56CA-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE56CA-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE56CA-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE56CA-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® bidirectional TVS diode, 1.5KE56CA-/54, 1500W peak pulse power, 47.8V reverse standoff, 77V clamping, DO-201AA axial, through hole.","salesMarkdown":"## Clamping performance and protection window The 1.5KE56CA-E3/54: Its breakdown voltage range starts at 53.2V minimum, clamping at 77V maximum under a 19.5A peak pulse current (10/1000µs waveform). This window means a 48V bus sees the TVS remain transparent during normal operation but begin conducting before the rail exceeds the downstream device's absolute maximum rating. Rated for continuous junction temperatures from -55°C to 175°C, this part suits environments where the ambient spans outdoor telecom cabinets, engine compartments, or industrial control enclosures. The 1500W peak pulse rating is derated above 25°C per the standard TransZorb derating curve; at 175°C the peak pulse power drops to approximately 150W, so the thermal margin at the operating temperature must be checked against the expected surge energy. ## Package and board integration Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE56CA-/54 mounts through-hole on the PCB. The axial body allows either vertical or horizontal placement; for high-surge applications, the lead length between the TVS and the protected rail should be kept under 10 mm to minimise inductive voltage drop that reduces clamping effectiveness at the load.","metaTitle":"1.5KE56CA-E3/54 Vishay TVS, 1500W, 47.8V Standoff","metaDescription":"Vishay 1.5KE56CA-E3/54 TransZorb bidirectional TVS, 1500W peak pulse, 47.8V standoff, DO-201AA. Active production, sourced to order. Request a quote.","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":"1.5KE56","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"19.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE56CA-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/1.5KE56CA-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}}