{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTA12-800BWRG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BTA12-800BWRG","canonicalUrl":"https://icboms.com/stmicroelectronics/BTA12-800BWRG","factsUrl":"https://icboms.com/api/mcp/products/BTA12-800BWRG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics Snubberless™ series, Alternistor - Snubberless triac, BTA12-800BWRG, 800 V off-state, 12 A RMS on-state, 50 mA gate trigger, TO-220-3 through hole, -40°C to 125°C junction.","salesMarkdown":"## Snubberless™ alternistor for inductive-load switching The STMicroelectronics BTA12-800BWRG is an 800 V, 12 A RMS Snubberless™ alternistor triac in a TO-220AB insulated through-hole package. ## 800 V blocking and 12 A load capacity With an 800 V off-state voltage rating, the BTA12-800BWRG comfortably handles 230 VAC and 400 VAC mains with margin for line transients. Non-repetitive surge current is rated at 120 A for 50 Hz and 126 A for 60 Hz, providing headroom for motor-start inrush or capacitive-load charging events. Gate trigger current and voltage are 50 mA and 1.3 V maximum, respectively — compatible with standard logic-level drivers or optocoupler outputs. The 50 mA maximum hold current ensures the triac latches on once triggered and does not drop out prematurely during load current zero-crossings. ## TO-220AB insulated package — mounting without isolation hardware The TO-220AB Insulated (full-pack) package has an electrically isolated tab, so the heatsink does not require an insulating pad or washer. This simplifies assembly and reduces thermal resistance from junction to heatsink compared to a non-isolated TO-220 with a mica spacer. The through-hole leads suit standard PCB or point-to-point wiring.","metaTitle":"ST BTA12-800BWRG Snubberless™ Triac, 800 V, 12 A, TO-220-3","metaDescription":"STMicroelectronics BTA12-800BWRG Snubberless™ alternistor triac, 800 V off-state, 12 A RMS, TO-220AB insulated. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Snubberless™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"Snubberless™","Package":"Tube","Triac Type":"Alternistor - Snubberless","Configuration":"Single","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"BTA12","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"TO-220AB Insulated","Current - Hold (Ih) (Max)":"50 mA","Current - Gate Trigger (Igt) (Max)":"50 mA","Voltage - Gate Trigger (Vgt) (Max)":"1.3 V","Current - On State (It (RMS)) (Max)":"12 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"120A, 126A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7400","priceTiers":[{"qty":1,"price":"$1.83000","currency":"USD"},{"qty":10,"price":"$1.64200","currency":"USD"},{"qty":100,"price":"$1.31950","currency":"USD"},{"qty":500,"price":"$1.08406","currency":"USD"},{"qty":1000,"price":"$1.02270","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5ef651cdc3141726518fd3e56c11b109.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BTA12-800BWRG/alternatives.json"},"ai":{"faq":[{"question":"Can BTA12-800BWRG switch inductive loads without a snubber?","answer":"Yes. The Snubberless™ alternistor design is specifically intended for high-inductive load switching — motors, transformers, solenoids — without requiring an external RC snubber network. This reduces component count and board area compared to a standard triac in the same application."},{"question":"What is the difference between BTA12-800BWRG and the standard BTA12-800B?","answer":"The BTA12-800BWRG is a Snubberless™ alternistor, while the standard BTA12-800B is a conventional triac. The BWRG suffix indicates the Snubberless™ version, which can switch inductive loads without an external snubber. Both share the same 800 V / 12 A rating and TO-220AB package, but the gate trigger characteristics and commutation performance differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BTA12-800BWRG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BTA12-800BWRG 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}}