{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE47C-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE47C-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE47C-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE47C-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, Type Zener, 1.5KE47C-/73, 1500W peak pulse, bidirectional, DO-201AA axial through-hole.","salesMarkdown":"## What the 1500 W rating means for your protection design The 1.5KE47C-E3/73: At the clamping voltage of 67.8 V, the device handles a peak pulse current of 22.1 A before the junction exceeds its thermal limit. The 38.1 V reverse standoff voltage means the diode draws negligible leakage below that rail level; it starts conducting in avalanche at a minimum of 42.3 V. For a 36 V nominal bus with transients up to 60 V, this part clamps the spike before downstream regulators see damaging overvoltage. ## Obsolete — sourcing path for existing BOM lines Vishay has marked the 1.5KE47C-/73 as obsolete, meaning the manufacturer no longer produces it. The TransZorb series has a wide parametric family; a pin-compatible replacement with the same DO-201AA footprint and 1500 W rating would need matching standoff and breakdown voltages. Cross-referencing is best done against the BOM's actual rail voltage and clamping requirement. ## Package and thermal integration Housed in the DO-201AA (DO-27) axial leaded package, it mounts through-hole — the leads are soldered into plated holes on the PCB. The junction temperature range spans -55°C to 175°C, so it suits both outdoor telecom cabinets and industrial enclosures where ambient heat is a factor. The 1.5KE package code is shared across the series, so the lead form and body dimensions follow the standard DO-201 outline.","metaTitle":"1.5KE47C-E3/73 TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"Vishay 1.5KE47C-E3/73 TransZorb TVS, 1500W peak pulse, 38.1V standoff, bidirectional. Obsolete — sourced to order. RFQ for availability.","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":"Tape & Box (TB)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE47","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"42.3V","Voltage - Clamping (Max) @ Ipp":"67.8V","Voltage - Reverse Standoff (Typ)":"38.1V","Current - Peak Pulse (10/1000µs)":"22.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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/1.5KE47C-E3-73","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/1.5KE47C-E3-73 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}}