{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE27CA-T","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"1.5KE27CA-T","canonicalUrl":"https://icboms.com/diodes-inc/1.5KE27CA-T","factsUrl":"https://icboms.com/api/mcp/products/1.5KE27CA-T","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated 1.5KE27CA-T bidirectional Zener TVS diode, 1500W peak pulse power, 37.5V clamping voltage, DO-201AA axial-lead package, Tape & Reel.","salesMarkdown":"## What the 37.5 V clamp means on your rail The 1.5KE27CA-T: When a transient hits, it clamps at 37.5 V maximum — that is the voltage the downstream silicon sees, not the 23.1 V standoff it was running at. If your 24 V rail's downstream parts are rated for 40 V or better, this clamp keeps them inside the safe operating area. Breakdown starts at 25.7 V minimum, so a sustained 24 V bus does not trigger it. The 40 A peak pulse current (Ipp) at the 37.5 V clamp tells you the energy it can dump before the part gives up — useful for sizing upstream fusing or PTCs. ## DO-201 axial — the scorch-mark tells you Through-hole DO-201AA (DO-27) axial package. The body is about 7.5 mm long with 0.050-inch diameter leads — standard for this power class. On a repair bench, a shorted TVS in this package leaves a telltale crack or discolouration on the body; the scorch mark tells you which rail took the hit before you even reach for the meter. The -T suffix means Tape & Reel packaging (also available as Cut Tape). For a one-off board repair, a Cut Tape quantity is the practical call; for a production run, the reel feeds an axial insertion machine without a feeder change. Diodes Incorporated lists the 1.5KE27CA-T as Obsolete. No pin-compatible direct replacement from Diodes is documented, so a board spin is the only guaranteed path if you cannot source the original. Power line protection is not supported — this is a signal-rail or low-voltage bus protector, not a mains-side MOV replacement.","metaTitle":"1.5KE27CA-T Diodes Inc TVS, 1500W, 37.5V Clamp","metaDescription":"1.5KE27CA-T Diodes Inc bidirectional Zener TVS, 1500W peak pulse, 37.5V clamp, DO-201. Obsolete — sourced to order against RFQ.","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); Cut Tape (CT)","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":"1.5KE27","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"25.7V","Voltage - Clamping (Max) @ Ipp":"37.5V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"40A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5369","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b6b9d4121cb66208511919f4a66769e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5KE27CA-T come in?","answer":"Through-hole DO-201AA (DO-27) axial package. The -T suffix indicates Tape & Reel packaging; it is also available as Cut Tape."},{"question":"Where can I buy 1.5KE27CA-T?","answer":"The 1.5KE27CA-T is obsolete from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/1.5KE27CA-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/1.5KE27CA-T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-19T21:33:45.516Z","lastPublished":"2026-07-19T21:33:45.516Z","indexable":true}}