{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM15T15CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM15T15CA","canonicalUrl":"https://icboms.com/stmicroelectronics/SM15T15CA","factsUrl":"https://icboms.com/api/mcp/products/SM15T15CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM15T15CA, TRANSIL™ series, bidirectional Zener TVS diode, 1500W peak pulse power, 12.8V reverse standoff, 27.2V clamp, DO-214AB SMC package, -55°C to 150°C junction temperature.","salesMarkdown":"## 1500 W bidirectional transient suppressor for 12 V rails The STMicroelectronics SM15T15CA is a bidirectional Zener TVS diode from the TRANSIL™ family, designed to clamp voltage transients on DC power and signal lines. Its 1500 W peak pulse power rating (10/1000 µs waveform) handles surges from inductive load switching, lightning-induced transients, and ESD events in general-purpose equipment. The device is bidirectional, so a single part protects both polarities on a 12.8 V nominal rail, clamping at 27.2 V maximum. The DO-214AB (SMC) surface-mount package suits automated assembly for medium- to high-volume production. The 12.8 V reverse standoff voltage is the maximum DC or peak AC voltage the TVS can block without conducting appreciable leakage. For a nominal 12 V supply (automotive battery, industrial 12 V rail), this provides margin for steady-state tolerances and ripple. Breakdown is guaranteed at 14.3 V minimum, so the device stays off during normal operation and only avalanches when a transient pushes the line above that threshold. The 27.2 V clamping voltage at the peak pulse current of 368 A (8/20 µs waveform) defines the maximum voltage the downstream circuitry sees during a surge — a key parameter for selecting the TVS against the protected IC's absolute maximum rating. The 150°C upper limit allows operation in engine bays, outdoor telecom cabinets, and factory-floor enclosures without derating the peak pulse power at elevated temperatures — though the 1500 W rating is specified at 25°C and derates linearly above that. The wide temperature range also simplifies qualification across multiple product platforms sharing a common BOM.","metaTitle":"STMicroelectronics SM15T15CA TRANSIL TVS, 1500W","metaDescription":"STMicroelectronics SM15T15CA bidirectional Zener TVS diode, 1500W peak pulse power, 12.8V standoff, 27.2V clamp, DO-214AB SMC. Active, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SM15T, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"SM15T15","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","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":"$0.9400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/539ce92ad6505c8a9d704773ec1ef151.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power of SM15T15CA?","answer":"The SM15T15CA is rated for 1500 W peak pulse power on a 10/1000 µs waveform, with a peak pulse current of 368 A on an 8/20 µs waveform."},{"question":"Is SM15T15CA bidirectional?","answer":"Yes, the SM15T15CA is a single-channel bidirectional Zener TVS, meaning it clamps both positive and negative transients with one device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM15T15CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM15T15CA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:42:18.461Z","lastPublished":"2026-07-16T15:42:18.461Z","indexable":true}}