{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39CA-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE39CA-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39CA-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39CA-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, 1.5KE39CA-/73, bidirectional, 1500W peak pulse, 33.3V standoff, DO-201AA axial, through hole.","salesMarkdown":"## What the 1500 W rating means on a real board The 1.5KE39CA-E3/73: That 1500 W figure is the maximum power the die can absorb in a single surge event — it does not mean continuous dissipation. In a 24 VDC rail with a 33.3 V standoff, the device stays off until the transient exceeds 37.1 V (the minimum breakdown), then clamps at 53.9 V while shunting up to 27.8 A peak current. The junction handles -55°C to 175°C, so it survives hot environments like an industrial PSU or an outdoor telecom enclosure without derating at the top end. ## Package and field-swap reality Through-hole DO-201AA (DO-27) axial package — the leads are long enough to bend into existing PCB holes without a special fixture. Polarity is irrelevant here because it is bidirectional: the single die handles both polarities, so you cannot install it backwards. On a field repair, a standard soldering iron and a solder sucker are enough to swap it; no hot-air station needed. The tape-and-box (TB) packaging means parts come in a box, not a reel — fine for bench stock and small-batch builds.","metaTitle":"1.5KE39CA-E3/73 TransZorb TVS, 1500W, Bidirectional","metaDescription":"Vishay 1.5KE39CA-E3/73 bidirectional TVS diode, 1500W peak pulse, 33.3V standoff, DO-201AA axial. 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 & Box (TB)","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":"1.5KE39","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"37.1V","Voltage - Clamping (Max) @ Ipp":"53.9V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"27.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4460","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Vishay provide for 1.5KE39CA-/73?","answer":"The -/73 suffix indicates a RoHS-compliant, halogen-free product. Vishay typically provides a Certificate of Compliance (CoC) upon request, covering RoHS, REACH, and conflict-minerals declarations. The part is also UL recognized under the TransZorb series (file E54222). Specific documentation is issued with each shipment or available from the distributor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE39CA-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/1.5KE39CA-E3-73 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}