{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T22A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T22A","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T22A","factsUrl":"https://icboms.com/api/mcp/products/SM6T22A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T22A, Series SM6T TRANSIL™, Type Zener, Unidirectional TVS, 600W Peak Pulse, 18.8V Standoff, 20.9V Breakdown, 30.6V Clamp, DO-214AA SMB, -55°C to 150°C.","salesMarkdown":"## What this TRANSIL TVS protects and where it goes The STMicroelectronics SM6T22A is a 600W unidirectional transient voltage suppression diode from the SM6T TRANSIL™ series, packaged in a DO-214AA (SMB) surface-mount case. The clamping voltage is held to 30.6V at the peak pulse current of 102A (8/20µs waveform). This part suits industrial control, telecom, and automotive auxiliary circuits where a single unidirectional channel must shunt positive spikes to ground. For the 8/20µs waveform the peak current is 102A, which is the figure to use when calculating clamping margin against the expected surge. The 18.8V standoff voltage means the SM6T22A will not conduct appreciably below that level, so it can sit across an 18V rail without leakage issues. The 20.9V minimum breakdown ensures the avalanche triggers before the protected circuitry sees a damaging overvoltage. The single unidirectional channel occupies one device per protected line. No power line protection feature is present — this is a signal- or secondary-rail clamp, not a primary mains protector.","metaTitle":"STMicroelectronics SM6T22A TRANSIL TVS, 600W, DO-214AA","metaDescription":"SM6T22A 600W unidirectional TVS diode, 18.8V standoff, 20.9V breakdown, 30.6V clamp. Active production. Request quote for current pricing.","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":"SM6T22","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)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"102A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1e6a6ede6221d6b6009e7d617f0a0cd9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T22A/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between SM6T22A and SM6T22?","answer":"The SM6T22A is the standard unidirectional variant of the base SM6T22 part number. The 'A' suffix typically denotes a tighter breakdown tolerance or a specific screening level within the SM6T family. For exact differences, compare the breakdown voltage tolerances on the respective datasheets."},{"question":"Is SM6T22A RoHS compliant?","answer":"The SM6T22A is listed with Tape & Reel and Cut Tape packaging options, and as a current-production STMicroelectronics part it is manufactured to meet RoHS requirements. Verify the specific date-code compliance against your local regulations when ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T22A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T22A 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}}