{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACST610-8T","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"ACST610-8T","canonicalUrl":"https://icboms.com/stmicroelectronics/ACST610-8T","factsUrl":"https://icboms.com/api/mcp/products/ACST610-8T","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics ACST610-8T TRIAC, ACS™/A.S.D® series, sensitive gate, 800 V off-state, 6 A RMS, TO-220-3, tube.","salesMarkdown":"## 800 V blocking, 6 A conduction — sizing for 240 VAC loads The ACST610-8T: Rated for 800 V off-state voltage and 6 A RMS on-state current, this sensitive-gate TRIAC comfortably handles 240 VAC line-voltage loads with margin for mains transients. The 45 A / 47 A non-repetitive surge rating (50/60 Hz) means it can survive the inrush from a motor start or a capacitive load without commutating out of spec. ## Logic-level trigger — direct drive from a microcontroller With a maximum gate trigger current of 10 mA and a gate trigger voltage of just 1 V, the ACST610-8T qualifies as a logic-level or sensitive-gate TRIAC. The 25 mA holding current ensures the device latches on once triggered and does not drop out at low load currents. ## Through-hole TO-220-3 — standard power footprint Housed in a TO-220-3 through-hole package, the ACST610-8T mounts into the same footprint as countless other power TRIACs and thyristors. The tab is the main terminal (MT2), so the heatsink must be electrically isolated or the system must tolerate the tab at line potential. The tube packaging suits manual insertion or low-volume automated assembly. ROHS3 compliance satisfies EU and global regulatory requirements without a waiver.","metaTitle":"STMicroelectronics ACST610-8T TRIAC, 800 V, 6 A, TO-220-3","metaDescription":"Active STMicroelectronics ACST610-8T sensitive-gate TRIAC, 800 V off-state, 6 A RMS, TO-220-3. 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":"Tube","Triac Type":"Logic - Sensitive Gate","Configuration":"Single","Mounting Type":"Through Hole","Package / Case":"TO-220-3","lifecycle_stage":"eol_hot","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"TO-220","Current - Hold (Ih) (Max)":"25 mA","Current - Gate Trigger (Igt) (Max)":"10 mA","Voltage - Gate Trigger (Vgt) (Max)":"1 V","Current - On State (It (RMS)) (Max)":"6 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"45A, 47A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.21","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.21000","currency":"USD"},{"qty":10,"price":"$1.07800","currency":"USD"},{"qty":100,"price":"$0.84070","currency":"USD"},{"qty":500,"price":"$0.69452","currency":"USD"},{"qty":1000,"price":"$0.60349","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/464d84b8307b0c223ba17ced04642cbf.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the equivalent or replacement for ACST610-8T?","answer":"The ACST610-8R is the closest functional equivalent — same STMicroelectronics ACS™/A.S.D® series, same 800 V off-state voltage, same 6 A RMS on-state current, same TO-220-3 package, and same sensitive-gate trigger characteristics. The -8T and -8R differ only in the ordering code suffix; either can be used interchangeably in the same PCB footprint."},{"question":"Can ACST610-8T be used for 240V loads?","answer":"Yes. The 800 V off-state voltage provides ample margin above the 240 VAC peak (approximately 340 V), and the 6 A RMS on-state current covers typical resistive and inductive loads up to about 1.4 kW at 240 VAC."},{"question":"Is ACST610-8T RoHS compliant?","answer":"Yes, the ACST610-8T is ROHS3 Compliant per STMicroelectronics, meeting the latest EU Restriction of Hazardous Substances directive without exemptions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/ACST610-8T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/ACST610-8T 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}}