{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"T830-800W","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"T830-800W","canonicalUrl":"https://icboms.com/stmicroelectronics/T830-800W","factsUrl":"https://icboms.com/api/mcp/products/T830-800W","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics Snubberless™ series, T830-800W, Alternistor - Snubberless Triac, Single, 800 V Off State, 8 A RMS On-State, 30 mA Gate Trigger, Through Hole, ISOWATT220AB-3, -40°C to 125°C.","salesMarkdown":"The STMicroelectronics T830-800W is an 800 V, 8 A RMS Snubberless™ alternistor triac in the ISOWATT220AB-3 through-hole package. The Snubberless construction means the device is designed for inductive loads without requiring an external snubber network, simplifying the BOM and board layout in motor drives, lighting ballasts, and industrial AC switching applications. The 800 V off-state voltage provides margin for 240 VAC mains with surge transients, while the 8 A RMS on-state current handles moderate loads such as fans, pumps, and solenoid valves. ## Trigger and hold characteristics for reliable commutation Maximum gate trigger current is 30 mA and maximum gate trigger voltage is 1.3 V, which is compatible with standard logic-level or optocoupler drive circuits. The 50 mA maximum hold current ensures the triac stays latched through the zero-crossing of an inductive load, reducing the risk of premature turn-off. The non-repetitive surge current rating of 100 A at 60 Hz (105 A at 50 Hz) gives headroom for inrush events during motor start or lamp cold-filament turn-on. ## Obsolete — sourcing and replacement reality The Snubberless alternistor topology is shared across the T8xx series, but pin compatibility and trigger thresholds vary by suffix. ## Temperature range and package — design constraints The ISOWATT220AB-3 through-hole package provides isolation between the tab and the heatsink, simplifying thermal management in metal-enclosure designs. The single-triac configuration and through-hole mounting suit point-of-load AC switching where board space is not the primary constraint.","metaTitle":"STMicroelectronics T830-800W Triac, 800 V, 8 A","metaDescription":"STMicroelectronics T830-800W Snubberless™ alternistor triac, 800 V off-state, 8 A RMS, ISOWATT220AB-3 through-hole. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"Snubberless™","Package":"Tube","Triac Type":"Alternistor - Snubberless","Configuration":"Single","Mounting Type":"Through Hole","Package / Case":"ISOWATT220AB-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"T830","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"ISOWATT220AB","Current - Hold (Ih) (Max)":"50 mA","Current - Gate Trigger (Igt) (Max)":"30 mA","Voltage - Gate Trigger (Vgt) (Max)":"1.3 V","Current - On State (It (RMS)) (Max)":"8 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"100A, 105A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/36835582d2bf8676488117dcc8f53e75.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is T830-800W obsolete and what are the alternatives?","answer":"Yes, the T830-800W is listed as Obsolete by STMicroelectronics. A replacement search should target an 800 V, 8 A RMS Snubberless alternistor triac in the ISOWATT220AB-3 package from STMicroelectronics or a second-source manufacturer. Verify gate trigger current (30 mA max) and hold current (50 mA max) to ensure drop-in compatibility."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/T830-800W","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/T830-800W when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}