{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE22CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE22CA","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE22CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE22CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE22CA, 1.5KE TRANSIL™ series, bidirectional Zener TVS diode, 1500W peak pulse power, 20.9V breakdown min, 39.3V clamping, 254A peak pulse current, DO-201AA/DO-27 axial, through hole.","salesMarkdown":"## Obsolete — sourcing the 1.5KE22CA now For BOM lines that still specify this part, supply is limited to existing stock in the independent distribution channel. Sourcing this device now means buying from surplus inventory — date codes will vary, and each reel or tube should be inspected for marking consistency and package integrity before populating a board. ## 20.9 V breakdown — what it protects This is a bidirectional single-channel TRANSIL™ TVS diode from the 1.5KE series, rated for 1500 W peak pulse power (1.5 kW) per the 10/1000 µs waveform. The minimum breakdown voltage is 20.9 V, with a reverse standoff of 18.8 V and a maximum clamping voltage of 39.3 V at the peak pulse current of 254 A (tested with the 8/20 µs waveform). The 1850 pF capacitance at 1 MHz matters when this part sits on a data line — it will load the signal, so it is better suited for power rails or slower I/O than high-speed differential pairs. ## DO-201 axial — through-hole mounting The package is DO-201AA / DO-27 axial leaded, through-hole mount. This is a larger-bodied axial diode — the leads need to be formed to the PCB hole spacing. No power line protection is built in; this is a general-purpose transient suppressor for secondary-side protection on DC buses, relay coils, or low-frequency AC lines.","metaTitle":"1.5KE22CA STMicroelectronics TRANSIL™ TVS Diode","metaDescription":"STMicroelectronics 1.5KE22CA bidirectional TVS diode, 1500W peak pulse power, 20.9V min breakdown, 39.3V clamping, DO-201 axial.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"1.5KE, TRANSIL™","Package":"Cut Tape (CT); Tape & Box (TB)","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":"1.5KE","Operating Temperature":"-","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"1850pF @ 1MHz","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"20.9V","Voltage - Clamping (Max) @ Ipp":"39.3V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"254A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/572f99690aeb2b0f302ed9cdcfd976ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE22CA/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1.5KE22CA and how do I get a price?","answer":"The 1.5KE22CA is obsolete from STMicroelectronics, so it is not available through the factory channel. Submit an RFQ for current availability and pricing; each quote is confirmed against the stock we can physically inspect before shipment."},{"question":"What is the replacement for 1.5KE22CA?","answer":"STMicroelectronics has not published an official successor order code for the 1.5KE22CA. A functionally equivalent replacement would need to match the 1500 W peak pulse rating, bidirectional configuration, 20.9 V minimum breakdown, and DO-201 axial package. Parts in the same 1.5KE series with a different voltage rating are not drop-in substitutes. Without an official cross-reference, the safest approach is to qualify a same-spec TVS from another manufacturer against your clamping voltage and surge energy requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE22CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE22CA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:03:06.532Z","lastPublished":"2026-07-16T15:03:06.532Z","indexable":true}}