{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE12C-E3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE12C-E3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE12C-E3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE12C-E3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® bidirectional TVS diode, 1.5KE12C-/73, 1500W peak pulse power, 10.8V breakdown, DO-201AA axial-lead package, tape and box.","salesMarkdown":"## What the 1500W rating means on the bench The 1.5KE12C-E3/73: The bidirectional channel means it clamps both polarities with one device, saving board space over back-to-back zeners. The 10.8 V minimum breakdown voltage and 9.72 V reverse standoff put this squarely on a 12 V nominal rail — the TVS stays out of the circuit until a surge pushes the line above the standoff threshold. ## Obsolete — sourcing reality for the 1.5KE12C-E3/73 No official successor order code is recorded from Vishay. When a TVS in this footprint goes obsolete, the practical move is to cross-reference the 1.5KE12C against other 1500 W bidirectional parts in the same DO-201AA package from Littelfuse, ST, or ON Semiconductor — the parametric match is the clamping voltage and the 10/1000 µs pulse rating, not the brand. ## Board-fit and package note The DO-201AA (also known as DO-27) axial-lead package is a through-hole part — the leads insert into plated through-holes on the PCB and are soldered on the opposite side. Lead spacing is typically 0.375 inches (9.5 mm) centre-to-centre, and the body diameter is about 0.210 inches (5.3 mm). The scorch mark on a dead board often points right at this package when a surge exceeded the clamping capacity. Tape and box (TB) packaging means the parts come in a box with the leads oriented in a tape carrier, not a reel — fine for hand assembly or low-volume rework but not for automated pick-and-place. The axial format is straightforward to hand-solder; just pre-form the leads to the hole spacing before insertion.","metaTitle":"1.5KE12C-E3/73 Vishay TransZorb, 1500W Bidirectional TVS","metaDescription":"Vishay 1.5KE12C-E3/73 TransZorb bidirectional TVS diode, 1500W peak pulse, 10.8V breakdown, DO-201AA. Obsolete — sourced to order. Request a quote.","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":"1.5KE12","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"10.8V","Voltage - Clamping (Max) @ Ipp":"17.3V","Voltage - Reverse Standoff (Typ)":"9.72V","Current - Peak Pulse (10/1000µs)":"86.7A"}},"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 1.5KE12C-/73 and how do I get a price?","answer":"The 1.5KE12C-/73 is obsolete and sourced through independent distribution. No stock-holding claim; each lot is verified for authenticity before shipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE12C-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/1.5KE12C-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}}