{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE15CARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE15CARL","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE15CARL","factsUrl":"https://icboms.com/api/mcp/products/1.5KE15CARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE15CARL, TRANSIL™ series, bidirectional TVS diode, 1500W peak pulse, 12.8V standoff, 27.2V clamp, DO-201AA axial package.","salesMarkdown":"## 1500W bidirectional TVS in a DO-201 axial package The STMicroelectronics 1.5KE15CARL is a bidirectional Zener-based transient voltage suppressor from the 1.5KE TRANSIL™ family. It delivers 1500W peak pulse power (10/1000 µs waveform) with a 12.8 V reverse standoff voltage and clamps at 27.2 V maximum at the rated peak pulse current of 368 A (8/20 µs waveform). The single bidirectional channel protects both polarities from a single device, simplifying board layout for AC signal lines or differential pairs. The 27.2 V clamping voltage at the peak pulse current sets the maximum voltage the downstream circuit sees during a surge event. A 12.8 V standoff voltage means the device draws negligible leakage at normal operating levels up to that DC bias. The DO-201 axial body handles the thermal pulse without derating over the board's ambient temperature range. The 1.5KE15CARL is marked obsolete by STMicroelectronics. For new designs, consider the current-production 1.5KE series variants in the same DO-201 package; the 1.5KE15A (unidirectional) is a common cross-shop candidate but differs in polarity. ## Through-hole mounting and package compatibility The DO-201AA (DO-27) axial leaded package is a through-hole form factor with 0.052-inch diameter leads. The tape-and-reel option (1.5KE15CARL suffix) supports automated insertion, while cut-tape quantities are available for prototypes or repair stock. The 2500 pF typical capacitance at 1 MHz limits application to lower-frequency signal lines — not suitable for high-speed data interfaces like Ethernet or USB without significant signal degradation.","metaTitle":"1.5KE15CARL TVS Diode, 1500W Bidirectional, DO-201","metaDescription":"STMicroelectronics 1.5KE15CARL bidirectional TVS diode, 1500W peak pulse, 12.8V standoff, 27.2V clamp. 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":"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":"2500pF @ 1MHz","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"14.3V","Voltage - Clamping (Max) @ Ipp":"27.2V","Voltage - Reverse Standoff (Typ)":"12.8V","Current - Peak Pulse (10/1000µs)":"368A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/089e26c8bbf5e28593f663899fc6cea1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE15CARL/alternatives.json"},"ai":{"faq":[{"question":"Is 1.5KE15CARL obsolete?","answer":"Yes, STMicroelectronics lists the 1.5KE15CARL as obsolete. No official replacement order code is published. For new designs, evaluate current-production 1.5KE series parts in the same DO-201 package, noting the polarity difference."},{"question":"What is the difference between 1.5KE15CARL and 1.5KE15A?","answer":"The 1.5KE15CARL is bidirectional (single device protects both polarities), while the 1.5KE15A is unidirectional. Both share the same DO-201 package, 1500 W peak pulse power, and similar breakdown voltage range. The bidirectional variant eliminates the need for a series diode in AC-coupled circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE15CARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE15CARL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:55:57.488Z","lastPublished":"2026-07-16T15:55:57.488Z","indexable":true}}