{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTA12-700CWRG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BTA12-700CWRG","canonicalUrl":"https://icboms.com/stmicroelectronics/BTA12-700CWRG","factsUrl":"https://icboms.com/api/mcp/products/BTA12-700CWRG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics Snubberless™ series, BTA12-700CWRG Alternistor triac, 700 V off-state, 12 A RMS on-state, 35 mA gate trigger, TO-220-3 through-hole, single configuration.","salesMarkdown":"The ST BTA12-700CWRG is a Snubberless™ Alternistor triac rated for 700 V off-state and 12 A RMS on-state current in a TO-220 through-hole package. It switches AC loads without the RC snubber network that older triac designs need — the Alternistor construction handles inductive turn-off commutation internally, which simplifies the BOM and cuts the parts count on the power board. The 35 mA gate trigger current and 1.3 V gate trigger voltage are standard for this current class — any microcontroller GPIO driving an opto-triac or a discrete driver will hit the gate without extra gain stages. ## Surge current and hold current — the real-world margins Non-repetitive surge current is 120 A at 50 Hz and 126 A at 60 Hz — this is the number the incoming fuse or circuit breaker must coordinate with so the triac survives the cold-start inrush of a motor or a bank of incandescent lamps. Maximum holding current is 35 mA. If the load current dips below this near the zero-crossing, the triac drops out of conduction — a consideration for low-power loads or PWM dimming where the gate pulse must be maintained through the entire half-cycle.","metaTitle":"ST BTA12-700CWRG Snubberless Triac, 700 V, 12 A, TO-220","metaDescription":"ST BTA12-700CWRG Snubberless Alternistor triac, 700 V off-state, 12 A RMS on-state, TO-220 through-hole.","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":"700 V","Supplier Device Package":"TO-220","Current - Hold (Ih) (Max)":"35 mA","Current - Gate Trigger (Igt) (Max)":"35 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":"$1.7900","priceTiers":[{"qty":1,"price":"$1.79000","currency":"USD"},{"qty":10,"price":"$1.60700","currency":"USD"},{"qty":100,"price":"$1.29150","currency":"USD"},{"qty":500,"price":"$1.06106","currency":"USD"},{"qty":1000,"price":"$1.00100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cad47cf7815ff668a96c35f94168ae42.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BTA12-700CWRG/alternatives.json"},"ai":{"faq":[{"question":"Is the BTA12-700CWRG a snubberless TRIAC?","answer":"Yes. It is an Alternistor - Snubberless type from the Snubberless™ series. The Alternistor construction handles inductive load commutation without an external RC snubber, which reduces BOM cost and board area."},{"question":"Is BTA12-700CWRG obsolete?","answer":"No — the lifecycle status is Active. It remains a current-production part suitable for new designs."},{"question":"What is the equivalent of BTA12-700CWRG?","answer":"The closest functional peer is the BTB12-800CWRG, also a Snubberless Alternistor in TO-220, but rated at 800 V off-state instead of 700 V. The 800 V part offers extra voltage headroom for mains with poor regulation or transient-prone lines. Both share the same 12 A RMS on-state current and gate trigger characteristics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BTA12-700CWRG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BTA12-700CWRG 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}}