{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE250CARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE250CARL","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE250CARL","factsUrl":"https://icboms.com/api/mcp/products/1.5KE250CARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE250CARL, TRANSIL™ series, Bidirectional TVS Zener, 213V standoff, 237V breakdown, 442V clamping, 1500W peak pulse power, DO-201AA/DO-27 axial, Through Hole.","salesMarkdown":"## 1500W bidirectional TVS — what the voltage stack means for the rail The 1.5KE250CARL is a bidirectional Zener TVS diode from ST's TRANSIL™ 1.5KE family, packaged in a DO-201AA / DO-27 axial through-hole body. It is a general-purpose surge suppressor rated for a peak pulse power of 1500W (1.5kW) per the 10/1000µs waveform, with a single bidirectional channel that clamps transients of either polarity. Breakdown occurs at a minimum of 237V, and clamping is specified at a maximum of 442V at the rated peak pulse current of 23A (8/20µs waveform). For a 230V AC line or a 200V DC bus, the 213V standoff leaves enough headroom to avoid nuisance triggering during normal operation, while the 442V clamp keeps the transient voltage below the typical 500V–600V withstand of downstream power semiconductors or DC-link capacitors. STMicroelectronics lists the 1.5KE250CARL as Active. ## Through-hole axial — rework and panel-mount compatible The DO-27 axial package is through-hole, which means it solders into a plated through-hole on the PCB or can be wired into a terminal block for panel-mount surge protection. The 280pF typical capacitance at 1MHz is worth noting on high-speed data lines — it loads the signal with enough capacitance to round edges on anything above a few hundred kHz, so this part is better suited to power rails and slow I/O than to Ethernet or CAN bus.","metaTitle":"ST 1.5KE250CARL TVS Diode, 1500W Bidirectional, DO-201","metaDescription":"STMicroelectronics 1.5KE250CARL bidirectional TVS diode, 1500W peak pulse power, 213V standoff, 442V clamping. Active.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE250","Operating Temperature":"-","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"280pF @ 1MHz","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"237V","Voltage - Clamping (Max) @ Ipp":"442V","Voltage - Reverse Standoff (Typ)":"213V","Current - Peak Pulse (10/1000µs)":"23A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/572f99690aeb2b0f302ed9cdcfd976ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE250CARL/alternatives.json"},"ai":{"faq":[{"question":"Is the 1.5KE250CARL a bidirectional TVS diode?","answer":"Yes, the 1.5KE250CARL has one bidirectional channel, meaning it clamps transients of either polarity in a single device — suitable for AC lines or bipolar DC rails where the signal swings above and below ground."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE250CARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE250CARL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}