{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T27CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T27CA","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T27CA","factsUrl":"https://icboms.com/api/mcp/products/SM6T27CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T27CA, TRANSIL™ series, bidirectional TVS diode, 600W peak pulse power, 23.1V reverse standoff, 48.3V clamping, DO-214AA SMB surface mount package, -55°C to 150°C operating temperature.","salesMarkdown":"## A 600 W bidirectional transient suppressor for 24 V rails It offers a peak pulse power rating of 600 W (10/1000 µs waveform) and a reverse standoff voltage of 23.1 V, meaning it sits across the line and does not conduct until the transient exceeds that threshold. The clamping voltage is held to 48.3 V at the peak pulse current of 83 A (8/20 µs waveform), which keeps downstream silicon within its safe operating area during surge events like inductive load dump or lightning-coupled spikes. This part is a general-purpose protector for industrial control, telecom, and automotive auxiliary circuits where the board sees a 24 V bus and needs a single bidirectional device to handle both positive and negative transients without polarity concerns. ## Bidirectional channel — one part covers both polarities The SM6T27CA is a single-channel bidirectional device, which means it protects against overvoltage events of either polarity on the same line. This simplifies the BOM compared to using two unidirectional TVS diodes back-to-back, saving board area and reducing component count. The breakdown voltage range starts at a minimum of 25.7 V, so on a 24 V rail it stays transparent during normal operation and only activates when the transient pushes above that knee. ## Package and mounting — DO-214AA SMB for standard reflow The SMB body is large enough to handle the 600 W pulse without excessive junction temperature rise, and the gull-wing leads provide a visual solder-joint inspection point.","metaTitle":"STMicroelectronics SM6T27CA TVS Diode, 600W Bidirectional","metaDescription":"STMicroelectronics SM6T27CA bidirectional TVS diode, 600W peak pulse power, 23.1V standoff, DO-214AA SMB package.","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":"SM6T27","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)":"25.7V","Voltage - Clamping (Max) @ Ipp":"48.3V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"83A (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/SM6T27CA/alternatives.json"},"ai":{"faq":[{"question":"Is SM6T27CA bidirectional or unidirectional?","answer":"The SM6T27CA is a single-channel bidirectional TVS diode, meaning it clamps transients of either polarity on the same line without needing a second device."},{"question":"SM6T27CA vs SM6T27A: What are the differences?","answer":"The SM6T27A is the unidirectional version of the same device, while the SM6T27CA is bidirectional. Both share the same 600 W peak pulse power, 23.1 V standoff voltage, and DO-214AA package. Choose the SM6T27CA when the line sees transients of both polarities and you want a single component; use the SM6T27A if the circuit already has a defined polarity reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T27CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T27CA 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}}