{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE350CARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE350CARL","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE350CARL","factsUrl":"https://icboms.com/api/mcp/products/1.5KE350CARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE350CARL, TRANSIL™ series, bidirectional Zener TVS diode, 1500W peak pulse power, 299V reverse standoff, 332V breakdown min, 618V clamping, DO-201AA/DO-27 axial through-hole package.","salesMarkdown":"## Device overview: bidirectional Zener TVS for high-voltage rail protection The STMicroelectronics 1.5KE350CARL is a bidirectional Zener TVS diode from the 1.5KE TRANSIL™ series, designed to clamp transients on DC or AC power rails up to 299V continuous. It provides a single bidirectional channel in a through-hole DO-201AA / DO-27 axial package, rated for 1500W peak pulse power (10/1000µs waveform). The minimum breakdown voltage is 332V, with a maximum clamping voltage of 618V at the peak pulse current of 16A (8/20µs). Typical applications include general-purpose surge protection in industrial power supplies, telecom equipment, and AC line protection where bidirectional clamping is needed. For new designs, select a current-production bidirectional TVS in the 1.5KE series or equivalent family with similar voltage ratings (299V standoff, 332V breakdown). Stock is limited to existing inventory; confirm availability and pricing at quote time. ## Key ratings for fit and replacement The reverse standoff voltage of 299V defines the maximum continuous DC or AC peak voltage the diode can withstand without conducting. The minimum breakdown voltage of 332V ensures the device starts clamping before the protected circuit's voltage exceeds its rating. ## Package and mounting for retrofit Housed in a DO-201AA / DO-27 axial leaded package (supplier device package DO-201), this through-hole part is suitable for point-to-point wiring or PCB mounting with 0.042-inch diameter lead holes. The axial leads allow easy replacement in existing designs without board layout changes. Capacitance is 215pF at 1MHz, which is typical for a high-voltage TVS and may affect high-speed signal lines — verify signal integrity if used on data lines.","metaTitle":"STMicroelectronics 1.5KE350CARL TVS Diode","metaDescription":"STMicroelectronics 1.5KE350CARL bidirectional Zener TVS diode, 1500W peak pulse power, 299V standoff, 332V breakdown, DO-201 package.","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":"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":"1.5KE","Operating Temperature":"-","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"215pF @ 1MHz","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"332V","Voltage - Clamping (Max) @ Ipp":"618V","Voltage - Reverse Standoff (Typ)":"299V","Current - Peak Pulse (10/1000µs)":"16A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/089e26c8bbf5e28593f663899fc6cea1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE350CARL/alternatives.json"},"ai":{"faq":[{"question":"Is 1.5KE350CARL a bidirectional TVS diode?","answer":"Yes, the 1.5KE350CARL is a single-channel bidirectional Zener TVS diode, meaning it clamps transients of both polarities. This makes it suitable for AC line protection or bipolar DC rails where the voltage can swing positive and negative."},{"question":"What is the replacement for 1.5KE350CARL?","answer":"No official replacement is specified by STMicroelectronics. For a drop-in replacement, look for a current-production bidirectional TVS in the 1.5KE series or equivalent family with a reverse standoff voltage of 299V, minimum breakdown voltage of 332V, and DO-201 package. Cross-reference with distributors or the manufacturer for a recommended alternative."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE350CARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE350CARL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:58:52.331Z","lastPublished":"2026-07-16T14:58:52.331Z","indexable":true}}