{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T220CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T220CA","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T220CA","factsUrl":"https://icboms.com/api/mcp/products/SM6T220CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T220CA, TRANSIL™ series, Bidirectional TVS Zener, 600W peak pulse, 188V reverse standoff, 388V clamping, DO-214AA (SMB), Surface Mount, -55°C to 150°C.","salesMarkdown":"## Transient protection for 188 V rails — 600 W in an SMB footprint The STMicroelectronics SM6T220CA is a bidirectional TRANSIL™ TVS diode from the SM6T series, designed to clamp transients on 188 V nominal DC buses. It delivers 600 W peak pulse power (10/1000 µs) and clamps at 388 V maximum, with a peak pulse current rating of 10.3 A under the 8/20 µs waveform. The single bidirectional channel protects against surges in both polarities, making it a straightforward fit for AC line rectified rails, industrial power supplies, and telecom equipment where space on the board is tight. ## What the 388 V clamp means for your downstream circuitry The 388 V clamping voltage is the ceiling the TVS holds during a surge event. If your downstream DC-DC converter or load has an absolute maximum input below 388 V, you need additional series impedance or a higher-rated TVS. For 188 V rails (typical in three-phase industrial rectifiers or PoE++ injectors), the 209 V minimum breakdown provides a comfortable guard band against normal line ripple. The 10.3 A peak pulse current at 8/20 µs covers common IEC 61000-4-5 surge levels for equipment rated below 600 W. ## Package and board integration Housed in a DO-214AA (SMB) surface-mount package, the SM6T220CA occupies a compact footprint compatible with standard reflow profiles. No power line protection is built in — this is a pure transient suppressor, not a crowbar or overvoltage protector.","metaTitle":"STMicroelectronics SM6T220CA TVS Diode, 600W, 188V Standoff","metaDescription":"SM6T220CA bidirectional TVS diode from STMicroelectronics. 600W peak pulse power, 188V reverse standoff, 388V clamp, 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":"SM6T220","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)":"209V","Voltage - Clamping (Max) @ Ipp":"388V","Voltage - Reverse Standoff (Typ)":"188V","Current - Peak Pulse (10/1000µs)":"10.3A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1e6a6ede6221d6b6009e7d617f0a0cd9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SM6T220CA bidirectional?","answer":"Yes, the SM6T220CA is a single bidirectional channel device, clamping transients of either polarity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T220CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T220CA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:50:04.626Z","lastPublished":"2026-07-16T14:50:04.626Z","indexable":true}}