{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE11-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE11-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE11-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE11-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® Zener TVS diode, 1.5KE11-/73, 1500W peak pulse, 8.92V standoff, 16.2V clamp, DO-201AA axial, through hole.","salesMarkdown":"## What the 1500 W peak pulse rating means on your rail The 1.5KE11-E3/73: That 1500 W figure is the energy-handling ceiling — it tells you the device can absorb a single 92.6 A surge (the Ipp at clamp voltage) without failing, provided the pulse width stays within the standard transient shape. On a 12 V nominal rail, the 8.92 V reverse standoff voltage means the diode stays out of the circuit during normal operation and only starts conducting when the line rises above the 9.9 V minimum breakdown threshold. The clamping voltage — 16.2 V max at the rated Ipp — is the voltage the protected circuitry actually sees during a surge. If the downstream device's abs-max rating is below that clamp, the TVS alone won't protect it; you'd need a lower-clamp part or a secondary clamp stage. The 1.5KE11 is a single unidirectional channel, so it guards one polarity; for AC or bidirectional lines you'd need two devices or a bidirectional variant. ## Through-hole package and board integration Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE11-/73 is a through-hole device intended for hand-solder or wave-solder assembly. The axial leads suit point-to-point wiring, terminal blocks, or PCB mounting with the body standing off the board. The Tape & Box (TB) packaging is a bulk format — each device is taped to a carrier for automated insertion, then boxed. This is the standard shipping method for axial-lead diodes through distribution; the quantity per box varies by reel size and is confirmed at order. ## Obsolete — sourcing through independent channels For a BOM that requires this exact clamp voltage and footprint, the only reliable path is the surplus market. If a design is still in the prototyping phase, consider evaluating a current-production TVS from the same TransZorb family — the 1.5KE series shares the same package and peak power rating, but the breakdown voltage binning may differ. Pin-to-pin compatibility is not guaranteed without reviewing the alternative's datasheet.","metaTitle":"Vishay 1.5KE11-E3/73 TransZorb TVS, 1500W, DO-201AA","metaDescription":"Vishay 1.5KE11-E3/73 TransZorb Zener TVS diode, 1500W peak pulse, 8.92V standoff, DO-201AA axial. Obsolete — sourced to order against RFQ.","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":"1.5KE11","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"9.9V","Voltage - Clamping (Max) @ Ipp":"16.2V","Voltage - Reverse Standoff (Typ)":"8.92V","Current - Peak Pulse (10/1000µs)":"92.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5KE11-/73 and how do I get a price?","answer":"The 1.5KE11-/73 is obsolete and sourced through independent distribution."},{"question":"What is the closest pin-compatible alternative to the 1.5KE11-/73?","answer":"No official successor or pin-compatible alternative is recorded. The TransZorb 1.5KE series shares the same DO-201AA package and 1500 W peak pulse rating, but breakdown voltage bins differ — a direct replacement requires comparing the standoff and clamp voltages of a candidate part against the 8.92 V standoff and 16.2 V clamp of this device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE11-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/1.5KE11-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}}