{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM15T100A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM15T100A","canonicalUrl":"https://icboms.com/stmicroelectronics/SM15T100A","factsUrl":"https://icboms.com/api/mcp/products/SM15T100A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM15T100A, TRANSIL™ TVS diode, Zener type, 1500W peak pulse power, unidirectional, 85.5V reverse standoff, 95V breakdown min, 178V clamping, 56A peak pulse current, DO-214AB SMC, surface mount, -55°C to 150°C.","salesMarkdown":"## Transient protection for a 85.5 V rail The STMicroelectronics SM15T100A is a unidirectional TRANSIL™ TVS diode in the SM15T series, designed to clamp transients on a nominal 85.5 V supply rail. It delivers 1500 W of peak pulse power per the 10/1000 µs waveform, with a minimum breakdown voltage of 95 V and a maximum clamping voltage of 178 V at the rated peak pulse current of 56 A. The DO-214AB SMC package suits surface-mount assembly for general-purpose overvoltage protection in industrial, telecom, and automotive auxiliary circuits. ## 1500 W peak pulse — sizing the protection margin The 1500 W rating (10/1000 µs) defines the energy the diode can absorb in a single pulse. For a 85.5 V rail, the 178 V clamping ceiling leaves headroom above the rail plus any normal ripple, so the protected downstream components see a hard voltage limit. The 56 A peak pulse current (8/20 µs waveform) gives the surge capacity for direct or indirect lightning strikes on exposed lines. Because power line protection is not enabled, this part is intended for signal or low-power supply rails, not mains-side AC input stages. ## Temperature range and board-level fit The SMC package footprint is standard for this power class; the cathode band identifies the unidirectional orientation.","metaTitle":"SM15T100A STMicroelectronics TVS Diode, 1500W","metaDescription":"SM15T100A STMicroelectronics TRANSIL™ TVS diode, 1500W peak pulse power, 85.5V standoff, unidirectional, DO-214AB SMC package, -55°C to 150°C.","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":"SM15T100","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"95V","Voltage - Clamping (Max) @ Ipp":"178V","Voltage - Reverse Standoff (Typ)":"85.5V","Current - Peak Pulse (10/1000µs)":"56A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/539ce92ad6505c8a9d704773ec1ef151.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power of SM15T100A?","answer":"The SM15T100A is rated for 1500 W peak pulse power per the 10/1000 µs waveform, with a peak pulse current of 56 A under the 8/20 µs waveform."},{"question":"Is SM15T100A a unidirectional TVS diode?","answer":"Yes, the SM15T100A is a unidirectional TVS diode — it has one channel and protects against positive-going transients relative to ground."},{"question":"What package does SM15T100A use?","answer":"The SM15T100A is supplied in a DO-214AB SMC surface-mount package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM15T100A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM15T100A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:42:20.308Z","lastPublished":"2026-07-16T15:42:20.308Z","indexable":true}}