{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM15T10A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM15T10A","canonicalUrl":"https://icboms.com/stmicroelectronics/SM15T10A","factsUrl":"https://icboms.com/api/mcp/products/SM15T10A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM15T10A, TRANSIL™ series, Zener TVS diode, 1.5 kW peak pulse power, 18.6 V clamping voltage, 538 A peak pulse current (8/20 µs), DO-214AB SMC package, surface mount, -55°C to 150°C operating temperature.","salesMarkdown":"## 1.5 kW TVS in a DO-214AB — what the SM15T10A does It delivers 1500 W (1.5 kW) peak pulse power per the 10/1000 µs waveform, with a clamping voltage of 18.6 V at the rated peak pulse current of 538 A (8/20 µs waveform). The 8.55 V reverse standoff voltage means it stays out of the way on a nominal 5 V or 3.3 V rail, only clamping when the line exceeds the 9.5 V minimum breakdown threshold. Packaged in a DO-214AB (SMC) surface-mount case, it suits board-level transient protection in industrial controls, telecom equipment, and power supplies where a single unidirectional clamp is sufficient. For existing designs, the part must be sourced through independent distribution or surplus channels. The 1.5 kW peak pulse rating and DO-214AB footprint are common across the TRANSIL™ family, so a parametric replacement — such as a higher-voltage variant in the same package — may be feasible, but no pin-compatible drop-in is formally designated. Any substitution requires a review of the clamping voltage and breakdown thresholds against the protected circuit. The SMC footprint is standard for 1.5 kW TVS diodes, making board layout straightforward if a replacement is needed.","metaTitle":"STMicroelectronics SM15T10A TVS Diode, 1.5 kW, 18.6 V Clamp","metaDescription":"SM15T10A TRANSIL™ Zener TVS diode, 1.5 kW peak pulse power, 18.6 V clamp, DO-214AB SMC. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"SM15T","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"9.5V","Voltage - Clamping (Max) @ Ipp":"18.6V","Voltage - Reverse Standoff (Typ)":"8.55V","Current - Peak Pulse (10/1000µs)":"538A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/539ce92ad6505c8a9d704773ec1ef151.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM15T10A/alternatives.json"},"ai":{"faq":[{"question":"Is SM15T10A obsolete and what are the alternatives?","answer":"Yes, the SM15T10A is listed as Obsolete. No official replacement order code is provided by STMicroelectronics. A functionally similar TVS diode in the same TRANSIL™ family with a 1.5 kW rating and DO-214AB package may work, but the clamping voltage and breakdown voltage must be verified against the circuit's protection requirements."},{"question":"What is the difference between SM15T10A and SM15T12A?","answer":"The key difference is the voltage rating: the SM15T10A has a reverse standoff voltage of 8.55 V and a breakdown voltage of 9.5 V (min), while the SM15T12A has a higher standoff and breakdown. Both share the same 1.5 kW peak pulse power rating and DO-214AB package — the choice depends on the nominal rail voltage you need to protect."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM15T10A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM15T10A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}