{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE22A-T","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"1.5KE22A-T","canonicalUrl":"https://icboms.com/diodes-inc/1.5KE22A-T","factsUrl":"https://icboms.com/api/mcp/products/1.5KE22A-T","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated 1.5KE22A-T Zener TVS diode, 1500W peak pulse power, 18.8V reverse standoff, 30.6V clamp, unidirectional, DO-201AA axial, Tape & Reel.","salesMarkdown":"## 1500 W peak pulse — obsolete, but still the spec that matters The 1.5KE22A-T: That 1.5 kW rating defines the surge it can absorb — a 49 A peak pulse current at the 30.6 V clamping voltage means it shunts a 1500 W transient before the protected circuit sees the overvoltage. The 18.8 V reverse standoff is the DC bus voltage it sits across without conducting leakage. Once the transient pushes past the 20.9 V minimum breakdown, the diode avalanches and clamps at 30.6 V maximum. This is the protection window a designer budgets: the rail must tolerate the clamp voltage, and the transient source must deliver the 49 A without collapsing. ## EOL reality — sourcing through independent channels Diodes Incorporated lists this part as Obsolete. The last-time-buy window is closed — production has stopped. Available through independent surplus and broker channels. Quantities are lot-specific, date-code verified, and confirmed at RFQ. No pin-compatible replacement from the original manufacturer is documented — a board-level substitution would require requalifying the clamp voltage and package footprint against an alternative TVS. ## DO-201 axial — thermal and board-fit note Through-hole DO-201AA (DO-27) axial package. The 1500 W rating assumes the leads are soldered into a PCB with adequate copper area to sink the pulse heat — the junction temperature range spans -55°C to 175°C. In a rework or repair context, the axial body is hand-solderable; the tape-and-reel packaging indicates it was originally supplied for automated insertion. The unidirectional channel means it protects one polarity; a bidirectional device would be needed for AC-coupled lines.","metaTitle":"1.5KE22A-T Diodes Inc TVS, 1500W, 18.8V Standoff, DO-201","metaDescription":"Obsolete 1.5KE22A-T Zener TVS diode from Diodes Inc. 1500W peak pulse power, 18.8V standoff, 30.6V clamp.","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":"1.5KE22","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"49A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b6b9d4121cb66208511919f4a66769e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package is 1.5KE22A-T in?","answer":"DO-201AA, DO-27 axial, through-hole. The supplier device package is DO-201. It was originally supplied in Tape & Reel packaging for automated insertion."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/1.5KE22A-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/1.5KE22A-T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-19T21:33:45.565Z","lastPublished":"2026-07-19T21:33:45.565Z","indexable":true}}