{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43CA-T","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"1.5KE43CA-T","canonicalUrl":"https://icboms.com/diodes-inc/1.5KE43CA-T","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43CA-T","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated 1.5KE43CA-T Zener TVS diode, 1500W peak pulse power, 36.8V reverse standoff, 59.3V clamping, bidirectional, DO-201AA/DO-27 axial, Tape & Reel.","salesMarkdown":"## Protection window and pulse capability The 1.5KE43CA-T: The 40.9V minimum breakdown voltage ensures the avalanche region is reached well before the clamp voltage, giving the downstream circuitry a defined protection threshold. This makes it suitable for outdoor telecom cabinets, motor drive power stages, and engine-bay electronics where ambient heat soaks the PCB. The DO-201AA / DO-27 axial-lead through-hole package is a legacy footprint still common in power supplies and industrial control boards. The through-hole mount provides better thermal transfer to the board than a surface-mount equivalent at this power level — the leads carry surge current into the copper pour. ## Sourcing reality for an obsolete part Diodes Incorporated has marked the 1.5KE43CA-T as obsolete. For a repair or a short-run production line that cannot respin the board, the axial DO-201 footprint is widely supported by other TVS families. A pin-compatible cross-reference from a different brand can be evaluated at RFQ time, but no direct drop-in replacement from Diodes is listed.","metaTitle":"1.5KE43CA-T Diodes Inc Zener TVS, 1500W, Bidirectional","metaDescription":"Diodes Inc 1.5KE43CA-T Zener TVS diode, 1500W peak pulse, 36.8V standoff, 59.3V clamp, bidirectional, DO-201 axial. Obsolete, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diodes Incorporated","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE43","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"40.9V","Voltage - Clamping (Max) @ Ipp":"59.3V","Voltage - Reverse Standoff (Typ)":"36.8V","Current - Peak Pulse (10/1000µs)":"25.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b6b9d4121cb66208511919f4a66769e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5KE43CA-T and get a price?","answer":"Submit an RFQ for your target quantity and required date-code range."},{"question":"What are the key protection specs of the 1.5KE43CA-T?","answer":"Bidirectional — one device covers both polarities."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/1.5KE43CA-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/1.5KE43CA-T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-19T21:33:48.194Z","lastPublished":"2026-07-19T21:33:48.194Z","indexable":true}}