{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE300A-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE300A-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE300A-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE300A-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, Type Zener, 1.5KE300A-/54, 1500W peak pulse, 256V standoff, 414V clamp, DO-201AA axial, through hole.","salesMarkdown":"## Transient suppression window for 256 V rails The 1.5KE300A-E3/54: It clamps at 414 V maximum, with a reverse standoff of 256 V and a minimum breakdown of 285 V — this window protects 240–256 V DC rails from surges without conducting during normal operation. The 3.6 A peak pulse current rating (10/1000 µs) defines the surge capacity at the clamping voltage; for shorter transients the device absorbs significantly more energy per the datasheet's peak-pulse-power derating curve. ## Package and board integration Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE300A-/54 mounts through-hole — the large body and lead diameter handle the thermal pulse of a 1.5 kW surge without lifting pads or cracking solder joints. The TransZorb® series uses a glass-passivated junction for low leakage and stable breakdown over the full temperature range. This is a general-purpose protection diode with no internal power-line filtering (Power Line Protection: No), so it is intended for signal or DC bus clamping, not AC mains filtering.","metaTitle":"1.5KE300A-E3/54 Vishay TVS, 1.5kW 414V Clamp","metaDescription":"Vishay 1.5KE300A-E3/54 TransZorb® TVS diode, 1500W peak pulse, 256V standoff, 414V clamp, DO-201AA, active, 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":"1.5KE300","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"285V","Voltage - Clamping (Max) @ Ipp":"414V","Voltage - Reverse Standoff (Typ)":"256V","Current - Peak Pulse (10/1000µs)":"3.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 1.5KE300A-/54 and check availability?","answer":"The 1.5KE300A-/54 is an active Vishay part sourced to order against an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE300A-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/1.5KE300A-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}}