{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACST830-8GTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"ACST830-8GTR","canonicalUrl":"https://icboms.com/stmicroelectronics/ACST830-8GTR","factsUrl":"https://icboms.com/api/mcp/products/ACST830-8GTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics ACST830-8GTR, ACS™/A.S.D® series, Standard TRIAC, 800 V Off-State, 8 A RMS On-State, Single, D2PAK (TO-263-3), Surface Mount, Tape & Reel.","salesMarkdown":"## Active TRIAC for AC Load Switching The ACST830-8GTR: The 800 V off-state voltage and 8 A RMS on-state current cover common AC line switching in appliances, lighting controls, and motor drives. The non-repetitive surge rating of 80 A at 50 Hz and 84 A at 60 Hz means it can handle inrush from incandescent lamps or capacitor loads without failing. ## Gate Drive and Thermal Considerations Maximum gate trigger current is 30 mA and gate trigger voltage is 1 V — low enough to be driven directly by a microcontroller I/O pin or a logic-level optocoupler, simplifying the drive circuit. The 30 mA holding current ensures the TRIAC stays latched once triggered, even with lightly inductive loads. The D2PAK package (TO-263-3) has a large exposed thermal tab on the bottom. For 8 A RMS conduction, the PCB copper area under the tab must be sized to keep the junction temperature within the -40°C to 125°C operating range. The thermal resistance from junction to case (RθJC) is not listed here, but the tab should be soldered to a dedicated copper plane for heat spreading. ## Sourcing and Compliance It is ROHS3 compliant, meeting the latest EU exemption requirements. Sourced through authorized and independent distribution channels; availability and current pricing are confirmed at RFQ.","metaTitle":"STMicroelectronics ACST830-8GTR TRIAC, 800V 8A D2PAK","metaDescription":"STMicroelectronics ACST830-8GTR TRIAC, 800V 8A in D2PAK surface-mount. Active production, ROHS3 compliant. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":"ACS™/A.S.D®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"ACS™/A.S.D®","Package":"Tape & Reel (TR); Cut Tape (CT)","Triac Type":"Standard","Configuration":"Single","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"D2PAK","Current - Hold (Ih) (Max)":"30 mA","Current - Gate Trigger (Igt) (Max)":"30 mA","Voltage - Gate Trigger (Vgt) (Max)":"1 V","Current - On State (It (RMS)) (Max)":"8 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"80A, 84A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5","priceTiers":[{"qty":1,"price":"$1.60000","currency":"USD"},{"qty":10,"price":"$1.43500","currency":"USD"},{"qty":100,"price":"$1.11860","currency":"USD"},{"qty":500,"price":"$0.92402","currency":"USD"},{"qty":1000,"price":"$0.80290","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d019069bca6a105612ae5b9ea150e90b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ACST830-8GTR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between ACST830-8GTR and ACST830-8T?","answer":"The ACST830-8GTR is the surface-mount D2PAK variant supplied on tape and reel, while the ACST830-8T is the through-hole version in a tube. Both share the same 800 V, 8 A RMS ratings and standard TRIAC type. Choose the GTR for automated SMT assembly; the -8T for through-hole boards."},{"question":"Can the ACST830-8GTR be driven directly from a 3.3 V GPIO?","answer":"Yes, the maximum gate trigger voltage is 1 V, and the maximum gate trigger current is 30 mA. A 3.3 V GPIO with a current-limiting resistor can drive it, provided the port can source at least 30 mA. For higher noise immunity, a gate-drive optocoupler is recommended."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/ACST830-8GTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/ACST830-8GTR 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}}