{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"T835-8G-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"T835-8G-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/T835-8G-TR","factsUrl":"https://icboms.com/api/mcp/products/T835-8G-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics Series Snubberless™, T835-8G-TR, Alternistor - Snubberless Triac, Single, Surface Mount, TO-263-3 D²Pak, 800 V Off State, 8 A RMS On State, 35 mA Igt, -40°C ~ 125°C.","salesMarkdown":"## 800 V, 8 A RMS Snubberless™ triac for AC load switching The STMicroelectronics T835-8G-TR is an 800 V, 8 A RMS Snubberless™ Alternistor triac in a D²PAK surface-mount package. Its Snubberless™ construction means the internal structure is designed to commutate inductive loads without an external RC snubber network — saving two to three passive components and the associated board area. This part targets AC mains switching for resistive and inductive loads up to 8 A continuous, such as heating elements, solenoid valves, small motors, and lighting ballasts. The 800 V off-state voltage gives you headroom on 230 VAC or 277 VAC lines — the standard margin rule is 2x peak line voltage, so 800 V covers 277 VAC peak (392 V) with margin for transients. The 8 A RMS on-state current is the continuous rating; for motor or lamp inrush, the non-repetitive surge rating of 80 A at 50 Hz and 84 A at 60 Hz tells you the part can handle cold-filament or locked-rotor events. The 35 mA gate trigger current and 1.2 V gate trigger voltage are moderate — a 5 V logic output through a 100 Ω resistor can drive it, but a 3.3 V MCU pin will need a small NPN transistor or an optocoupler. The 35 mA holding current means the triac will stay latched once triggered as long as the load current stays above that threshold; for very light loads (below 35 mA), you may see dropout at zero-cross. At 8 A RMS, expect significant self-heating; a thermal pad or via array under the tab is necessary to keep junction temperature below 125°C at full load. For dual-sourcing, the closest pin-compatible alternative within the same ST T835 family is the T835-8G (non-tape-and-reel variant) — same die, same ratings, different shipping medium.","metaTitle":"STMicro T835-8G-TR Snubberless™ Triac, 800 V, 8 A RMS, D²PAK","metaDescription":"STMicroelectronics T835-8G-TR Snubberless™ Alternistor triac, 800 V off-state, 8 A RMS, 35 mA Igt, -40 to 125°C, D²PAK surface mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"Snubberless™","Package":"Tape & Reel (TR)","Triac Type":"Alternistor - Snubberless","Configuration":"Single","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"T835","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"D²PAK","Current - Hold (Ih) (Max)":"35 mA","Current - Gate Trigger (Igt) (Max)":"35 mA","Voltage - Gate Trigger (Vgt) (Max)":"1.2 V","Current - On State (It (RMS)) (Max)":"8 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"80A, 84A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4556","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0487bb02ea1e8827bd4e76ea03ec24d7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is T835-8G-TR a snubberless triac?","answer":"Yes, the T835-8G-TR is part of the Snubberless™ series and is an Alternistor - Snubberless type."},{"question":"Can I replace T835-8G-TR with another triac like T835-8G?","answer":"The T835-8G is the same die and ratings as the T835-8G-TR — the only difference is the shipping medium: -TR is tape-and-reel, while T835-8G is typically supplied in tube or bulk. Pin-compatible and electrically identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/T835-8G-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/T835-8G-TR 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}}