{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE68-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE68-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE68-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE68-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® series, Zener TVS diode, 1.5KE package, 1500W peak pulse power, 55.1V reverse standoff, 98V clamping, DO-201AA axial.","salesMarkdown":"## What the 55.1 V standoff means for your rail The 1.5KE68-E3/73: The 55.1 V reverse standoff is the maximum continuous DC voltage the TVS can sit across without conducting appreciable leakage — a 48 V nominal bus with 10 % tolerance (52.8 V max) stays below this threshold, so the diode does not load the rail during normal operation. When the transient hits, breakdown begins at 61.2 V minimum and the diode clamps the surge to 98 V maximum at 15.3 A — the clamping voltage is what downstream semiconductors must survive without secondary breakdown. The 1500 W peak pulse rating is derated above 25 °C; at the 175 °C maximum junction temperature the device is still specified for pulse handling, but the effective peak power drops per the datasheet derating curve. ## Package and board integration Supplied in a DO-201AA (DO-27) axial-lead package, through-hole mounted — the lead bend forms a low-inductance path when the body sits flush against the board, which matters for the clamping response time in fast transients. Single unidirectional channel — correct polarity matters; reverse insertion places the junction in forward conduction and the protection is lost.","metaTitle":"1.5KE68-E3/73 TransZorb TVS, 55.1V Standoff, 98V Clamp","metaDescription":"Vishay 1.5KE68-E3/73 TransZorb Zener TVS, 1500W peak pulse, 55.1V reverse standoff, 98V clamping. 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":"1.5KE68","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"61.2V","Voltage - Clamping (Max) @ Ipp":"98V","Voltage - Reverse Standoff (Typ)":"55.1V","Current - Peak Pulse (10/1000µs)":"15.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I source the obsolete 1.5KE68-/73?","answer":"This part is available through independent surplus and broker channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE68-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/1.5KE68-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}}