{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T18A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T18A","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T18A","factsUrl":"https://icboms.com/api/mcp/products/SM6T18A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T18A, TRANSIL™ series, Zener TVS diode, 600W peak pulse power, 15.3V reverse standoff, unidirectional, DO-214AA SMB package, surface mount.","salesMarkdown":"Packaged in a DO-214AA (SMB) surface-mount case, it handles 600 W peak pulse power per the 10/1000 µs waveform, with a clamping voltage of 32.5 V at the peak pulse current of 123 A (8/20 µs). This part is a common choice for general-purpose overvoltage protection in industrial controls, telecom equipment, and power supplies where a single unidirectional channel protects one signal or supply line. The 15.3 V reverse standoff voltage is the maximum continuous DC voltage the SM6T18A can block without conducting. The breakdown voltage range starts at 17.1 V minimum, so the diode begins clamping once the transient pushes the line above that threshold. The surface-mount package is compatible with reflow soldering and common pick-and-place equipment. No power line protection feature — this is a signal- or low-power-rail clamp, not a mains-side suppressor.","metaTitle":"SM6T18A STMicroelectronics TVS Diode, 600W, 15.3V Standoff","metaDescription":"SM6T18A STMicroelectronics TRANSIL™ TVS diode, 600W peak pulse power, 15.3V reverse standoff, unidirectional, DO-214AA SMB. 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":"SM6T, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SM6T18","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"32.5V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"123A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1e6a6ede6221d6b6009e7d617f0a0cd9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T18A/alternatives.json"},"ai":{"faq":[{"question":"Is SM6T18A unidirectional or bidirectional?","answer":"The SM6T18A is a unidirectional TVS diode with one channel. It protects a single line against positive-going transients relative to ground."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T18A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T18A 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}}