{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T12CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T12CA","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T12CA","factsUrl":"https://icboms.com/api/mcp/products/SM6T12CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T12CA, TRANSIL™ series, bidirectional TVS Zener diode, 600 W peak pulse power, 10.2 V reverse standoff, 11.4 V breakdown min, 21.7 V clamping, DO-214AA (SMB) surface-mount package.","salesMarkdown":"## TVS protection for a 12 V rail — what the ratings mean The STMicroelectronics SM6T12CA is a bidirectional Zener TVS diode from the TRANSIL™ family, designed to clamp transients on a nominal 12 V DC bus or signal line. Its 10.2 V reverse standoff voltage means the protected rail can carry up to that level without the device conducting, while the 11.4 V minimum breakdown voltage guarantees the clamping action starts before the rail sees damaging overvoltage. The 21.7 V maximum clamping at the rated peak pulse current of 184 A (8/20 µs waveform) defines the worst-case voltage the downstream circuitry must survive. With a single bidirectional channel, this part handles both positive and negative surges on one line, saving board space versus two unidirectional diodes. ## Package and mounting — DO-214AA (SMB) surface-mount Housed in a DO-214AA (SMB) surface-mount package, the SM6T12CA fits standard reflow soldering profiles. The SMB footprint is widely used for TVS diodes in this power class, and the package's small body keeps board area low.","metaTitle":"STMicroelectronics SM6T12CA TVS Diode, 600W Bidirectional","metaDescription":"STMicroelectronics SM6T12CA bidirectional TVS diode, 600W peak pulse power, 10.2V reverse standoff, DO-214AA SMB package. Active lifecycle.","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":"SM6T12","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Voltage - Breakdown (Min)":"11.4V","Voltage - Clamping (Max) @ Ipp":"21.7V","Voltage - Reverse Standoff (Typ)":"10.2V","Current - Peak Pulse (10/1000µs)":"184A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1e6a6ede6221d6b6009e7d617f0a0cd9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SM6T12CA and SM6T12A?","answer":"The SM6T12CA is a bidirectional TVS (one device protects against both positive and negative transients), while the SM6T12A is a unidirectional version (protects against one polarity only). For a line that sees symmetrical surges, the bidirectional SM6T12CA is the correct choice."},{"question":"Is SM6T12CA RoHS compliant?","answer":"The SM6T12CA is listed as RoHS compliant per STMicroelectronics' standard product marking. No separate non-RoHS variant is produced."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T12CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T12CA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:50:10.639Z","lastPublished":"2026-07-16T14:50:10.639Z","indexable":true}}