{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T33CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T33CA","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T33CA","factsUrl":"https://icboms.com/api/mcp/products/SM6T33CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T33CA, TRANSIL series, Bidirectional TVS Diode, 600W Peak Pulse, 28.2V Standoff, 31.4V Breakdown Min, 59V Clamping, DO-214AA SMB Package, -55°C to 150°C.","salesMarkdown":"## Transient protection in a DO-214AA footprint It is rated for a peak pulse power of 600W and a peak pulse current of 68A under the 8/20 µs waveform, with a reverse standoff voltage of 28.2V and a minimum breakdown voltage of 31.4V. The single bidirectional channel protects against surges of either polarity, making it a straightforward choice for unipolar or bipolar rail clamping in a single SMB (DO-214AA) package. Above that, the device begins to break down at a guaranteed minimum of 31.4V. For a 24V nominal rail (common in industrial control and telecom), the 28.2V standoff provides enough margin to avoid nuisance triggering from normal ripple, while the 59V clamp keeps the protected node within the safe operating area of most downstream 60V-rated components. The base product number is SM6T33, so the 'CA' suffix confirms the bidirectional polarity variant.","metaTitle":"STMicroelectronics SM6T33CA TVS Diode, 600W Bidirectional","metaDescription":"STMicroelectronics SM6T33CA TRANSIL bidirectional TVS diode, 28.2V standoff, 31.4V min breakdown, 600W peak pulse, 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":"SM6T33","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)":"31.4V","Voltage - Clamping (Max) @ Ipp":"59V","Voltage - Reverse Standoff (Typ)":"28.2V","Current - Peak Pulse (10/1000µs)":"68A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1e6a6ede6221d6b6009e7d617f0a0cd9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T33CA/alternatives.json"},"ai":{"faq":[{"question":"Is SM6T33CA bidirectional or unidirectional?","answer":"SM6T33CA is a bidirectional TVS diode, with a single bidirectional channel. It clamps transients of either polarity symmetrically."},{"question":"What is the peak pulse current of SM6T33CA?","answer":"The peak pulse current is 68A under the 8/20 µs waveform, corresponding to the 600W peak pulse power rating."},{"question":"What is the difference between SM6T33CA and SM6T33A?","answer":"The SM6T33CA is the bidirectional variant; the SM6T33A is the unidirectional version. Both share the same 28.2V standoff, 31.4V breakdown, and 600W power rating, but the unidirectional A version conducts only in one direction and has a different clamping characteristic for forward-biased surges."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T33CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T33CA 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}}