{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTB24-800BRG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BTB24-800BRG","canonicalUrl":"https://icboms.com/stmicroelectronics/BTB24-800BRG","factsUrl":"https://icboms.com/api/mcp/products/BTB24-800BRG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BTB24-800BRG, Standard TRIAC, Single, 800 V Off State, 25 A RMS On-State, TO-220-3 Through Hole, Tube.","salesMarkdown":"## 25 A RMS, 800 V blocking — the workhorse TRIAC for line-voltage loads The STMicroelectronics BTB24-800BRG is a standard TRIAC in the TO-220-3 through-hole package, rated for 800 V off-state voltage and 25 A RMS on-state current. It handles the AC load switching in motor drives, industrial heaters, lighting dimmers, and solid-state relays where the line voltage is 230 VAC or 400 VAC and the load pulls up to 25 A continuous. ## Gate drive and latching — 50 mA Igt, 80 mA Ih Maximum gate trigger current is 50 mA; maximum holding current is 80 mA. The 1.3 V gate trigger threshold means a standard optocoupler or logic-level driver with a current-limiting resistor can fire the gate. The 80 mA hold current ensures the TRIAC stays latched once conducting — if the load current dips below that threshold near the zero-cross, the device will commutate off, which matters for low-current loads like small fans or transformer primaries. ## Surge capability and thermal design Non-repetitive surge current is 250 A at 50 Hz and 260 A at 60 Hz — this is the peak the die can survive for one cycle during a fuse-clearing event or inrush from a motor start or capacitor bank. The TO-220 tab is the thermal path; a proper heatsink with thermal compound keeps the junction below 125°C at 25 A RMS. ROHS3 compliant per the supplier listing.","metaTitle":"STMicroelectronics BTB24-800BRG TRIAC, 800 V, 25 A, TO-220-3","metaDescription":"Standard TRIAC, 800 V off-state, 25 A RMS on-state, TO-220-3 through-hole package. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tube","Triac Type":"Standard","Configuration":"Single","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"BTB24","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"TO-220","Current - Hold (Ih) (Max)":"80 mA","Current - Gate Trigger (Igt) (Max)":"50 mA","Voltage - Gate Trigger (Vgt) (Max)":"1.3 V","Current - On State (It (RMS)) (Max)":"25 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"250A, 260A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7500","priceTiers":[{"qty":1,"price":"$2.75000","currency":"USD"},{"qty":10,"price":"$2.31100","currency":"USD"},{"qty":100,"price":"$1.86980","currency":"USD"},{"qty":500,"price":"$1.66206","currency":"USD"},{"qty":1000,"price":"$1.42314","currency":"USD"},{"qty":2000,"price":"$1.34004","currency":"USD"},{"qty":5000,"price":"$1.28562","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/74da83dd0d2c9db5a6d03fc7a4816de0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BTB24-800BRG/alternatives.json"},"ai":{"faq":[{"question":"What are the gate trigger and holding currents of BTB24-800BRG?","answer":"The gate trigger voltage is 1.3 V max."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BTB24-800BRG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BTB24-800BRG 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}}