{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1C-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE9.1C-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1C-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1C-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® series, Zener TVS diode, bidirectional, 1.5KE, 7.37V reverse standoff, 13.8V clamping, 1500W peak pulse, DO-201AA axial, tape and box.","salesMarkdown":"## Obsolete part — sourcing the last real stock The 1.5KE9.1C-E3/73: Vishay has marked the 1.5KE9.1C-/73 as Obsolete. This means the manufacturer no longer produces it and there is no last-time-buy window open. Any available units are from surplus or distributor inventory that was pulled before the EOL date. ## Package and mounting — DO-201AA axial lead The DO-201AA (DO-27) axial-lead package is a through-hole format. The leads are inserted into plated through-holes on the PCB and soldered — the copper pad area and trace width to the pads must be sized for the 109 A peak pulse current to keep the voltage drop and inductive loop low. The 1.5KE series uses the same package footprint across the voltage range. For rework, a standard soldering iron with a chisel tip or a selective solder nozzle handles the axial leads; no hot-air profile is needed.","metaTitle":"1.5KE9.1C-E3/73 Vishay TransZorb® TVS, 1500W, Obsolete","metaDescription":"Vishay 1.5KE9.1C-E3/73 bidirectional Zener TVS diode, 1500W peak pulse, 7.37V standoff, DO-201AA axial.","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":"1.5KE9.1","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"8.19V","Voltage - Clamping (Max) @ Ipp":"13.8V","Voltage - Reverse Standoff (Typ)":"7.37V","Current - Peak Pulse (10/1000µs)":"109A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1.5KE9.1C-/73 a bidirectional or unidirectional TVS?","answer":"It clamps transients of either polarity symmetrically, so there is no cathode/anode orientation when soldering into the board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1C-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/1.5KE9.1C-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}}