{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTA41-700BRG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BTA41-700BRG","canonicalUrl":"https://icboms.com/stmicroelectronics/BTA41-700BRG","factsUrl":"https://icboms.com/api/mcp/products/BTA41-700BRG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BTA41-700BRG, Standard Triac, Single Configuration, 40 A RMS On-State, 700 V Off-State, 400A/420A Surge, 50 mA Gate Trigger, Through Hole, TOP-3 Insulated Package, -40°C to 125°C.","salesMarkdown":"## 40 A RMS, 700 V — sized for industrial AC switching The STMicroelectronics BTA41-700BRG is a standard triac in a single configuration, rated for 40 A RMS on-state current and 700 V off-state voltage. That 700 V Vdrm gives real headroom on 230 VAC and 277 VAC mains lines, handling the voltage spikes that come with inductive loads like motors, transformers, and solenoids. The 40 A continuous rating means this part can switch a substantial load — think 10 HP motor drives, large industrial heaters, or welding equipment — but the heatsink and derating curve will determine the actual continuous current in your enclosure. The non-repetitive surge rating of 400 A at 50 Hz and 420 A at 60 Hz covers the inrush from motor starts and capacitor banks without the triac latching into conduction. ## Gate drive and hold current — what to expect from the trigger circuit Maximum gate trigger current is 50 mA, with a maximum gate trigger voltage of 1.3 V. That is a standard sensitivity — a typical microcontroller GPIO through a transistor driver or an optocoupler with a series resistor will fire it cleanly. The 80 mA maximum holding current is on the higher side, which means the triac will reliably commutate off when the load current drops below that threshold; this is helpful in inductive circuits where the load current zero-crossing is not perfectly clean. For low-current loads below 80 mA, you may need a snubber or a different triac with a lower Ih. ## TOP-3 insulated package — mounting and isolation The BTA41-700BRG comes in a TOP-3 Insulated through-hole package (supplier device package TOP3). The through-hole leads handle the 40 A current without the trace-width headaches of a surface-mount part. RoHS compliance is standard for ST's current triac portfolio; the part carries the standard lead-free finish for the TOP-3 Insulated package.","metaTitle":"STMicroelectronics BTA41-700BRG Triac, 40A RMS, 700V","metaDescription":"ST BTA41-700BRG standard triac: 40A RMS on-state, 700V off-state, 420A surge. TOP-3 insulated through-hole. Active, industrial temp -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tube","Triac Type":"Standard","Configuration":"Single","Mounting Type":"Through Hole","Package / Case":"TOP-3 Insulated","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"BTA41","Voltage - Off State":"700 V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"TOP3","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)":"40 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"400A, 420A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.3300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f75e4fee7ab756d2e0e2fe0c1c92eede.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BTA41-700BRG/alternatives.json"},"ai":{"faq":[{"question":"Is BTA41-700BRG suitable for AC motor control?","answer":"Yes. The 40 A RMS on-state current and 700 V off-state voltage, combined with the 420 A surge rating at 60 Hz, make this triac well suited for AC motor starting and running control in industrial equipment. The 80 mA holding current ensures reliable commutation with motor loads."},{"question":"What is the difference between BTA41-700BRG and BTA41-600B?","answer":"The primary difference is the voltage rating: BTA41-700BRG is rated for 700 V off-state, while BTA41-600B is rated for 600 V. For 230 VAC mains applications with significant line transients, the 700 V part provides additional safety margin. Both share the same 40 A RMS current rating and TOP-3 package."},{"question":"Does BTA41-700BRG meet RoHS compliance?","answer":"Yes, STMicroelectronics current-production triacs in the BTA41 series, including the 700BRG variant, are manufactured with RoHS-compliant lead-free plating on the TOP-3 Insulated package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BTA41-700BRG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BTA41-700BRG 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}}