{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T68A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T68A","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T68A","factsUrl":"https://icboms.com/api/mcp/products/SM6T68A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T68A, TRANSIL™ TVS diode, 600W peak pulse power, 58.1V reverse standoff, 64.6V min breakdown, 121V clamp, 1 unidirectional channel, DO-214AA SMB, -55°C to 150°C junction.","salesMarkdown":"## 600W transient clamp in a DO-214AA SMB package The STMicroelectronics SM6T68A is a 600W peak pulse power TRANSIL™ TVS diode in a surface-mount DO-214AA (SMB) package. It protects a single unidirectional line with a 58.1V reverse standoff voltage, a minimum breakdown of 64.6V, and a maximum clamping voltage of 121V at the peak pulse current. ## 58.1V standoff — what it means for a 48V bus With a 58.1V reverse standoff, this part sits comfortably on a nominal 48V rail without conducting during normal operation. The 64.6V minimum breakdown gives a guard band against transients that ride on top of the DC bus, while the 121V clamp limits the voltage spike seen by downstream components. For a 48V telecom or industrial system, the margin between the rail and the breakdown voltage is about 6.5V — enough to handle most load-dump and inductive kick events without nuisance triggering.","metaTitle":"STMicroelectronics SM6T68A TVS Diode, 600W, DO-214AA","metaDescription":"STMicroelectronics SM6T68A TRANSIL™ TVS diode, 600W peak pulse power, 58.1V standoff, 121V clamp, DO-214AA SMB.","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":"SM6T68","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)":"64.6V","Voltage - Clamping (Max) @ Ipp":"121V","Voltage - Reverse Standoff (Typ)":"58.1V","Current - Peak Pulse (10/1000µs)":"33A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1e6a6ede6221d6b6009e7d617f0a0cd9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T68A/alternatives.json"},"ai":{"faq":[{"question":"Can SM6T68A be used for 48V systems?","answer":"Yes. The 58.1V reverse standoff voltage and 64.6V minimum breakdown make it suitable for protecting a nominal 48V DC bus. The 121V clamping voltage limits the spike seen by downstream circuitry during a transient event."},{"question":"What is SM6T68A's listed type and series?","answer":"The SM6T68A is a Zener-type TVS diode from the SM6T series, branded TRANSIL™ by STMicroelectronics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T68A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T68A 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}}