{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TS110-8A2-AP","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TS110-8A2-AP","canonicalUrl":"https://icboms.com/stmicroelectronics/TS110-8A2-AP","factsUrl":"https://icboms.com/api/mcp/products/TS110-8A2-AP","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TS110-8A2-AP sensitive gate SCR, 800 V off-state voltage, 1.25 A RMS on-state current, 100 µA gate trigger, TO-92-3 through-hole package, -40°C to 125°C operating temperature.","salesMarkdown":"## 800 V sensitive-gate SCR in a TO-92 The STMicroelectronics TS110-8A2-AP is a sensitive-gate silicon controlled rectifier (SCR) rated for 800 V off-state blocking voltage and 1.25 A RMS on-state current. Packaged in a TO-92-3 through-hole format with formed leads, it targets low-power AC switching applications where a microcontroller or logic-level signal must directly trigger the gate without an intermediate driver transistor. This eliminates the driver transistor and base resistor from the BOM for small loads like relays, solenoids, indicator lamps, or fractional-horsepower motors. ## On-state ratings and surge capability With an average on-state current of 800 mA and RMS current of 1.25 A, the TS110-8A2-AP suits continuous loads up to about 150 W on a 120 VAC line or 300 W on 240 VAC, assuming adequate heatsinking through the TO-92 leads. The maximum on-state voltage drop is 1.6 V at peak current, which keeps conduction losses manageable for a through-hole part of this size. Surge current capability is specified at 20 A for a 50 Hz half-cycle and 21 A for 60 Hz — a 16x to 17x margin over the RMS rating. This handles inrush from incandescent lamps, capacitive loads, or motor start-up without external soft-start circuitry, as long as the surge duration stays within the half-cycle window. The maximum holding current is 12 mA, and off-state leakage is just 1 µA at rated voltage. The low holding current means the SCR stays latched through the zero-crossing of a lightly loaded AC waveform, reducing the risk of premature commutation with inductive loads. ## Temperature range and environment The 125°C ceiling is the junction limit — derate the on-state current above 25°C per the datasheet's thermal derating curve, which is typical for a TO-92 package with no heatsink. ## Lifecycle and sourcing ROHS3 compliance is confirmed, which simplifies compliance declarations for EU-market equipment. For dual-sourcing resilience, the X00602MA 1AA2 is a functional peer with a 600 V off-state rating and the same sensitive-gate characteristic, though the lower blocking voltage may not suit 240 VAC line applications.","metaTitle":"STMicro TS110-8A2-AP SCR, 800 V Sensitive Gate TO-92-3","metaDescription":"STMicroelectronics TS110-8A2-AP sensitive gate SCR, 800 V off-state, 1.25 A RMS, 100 µA gate trigger. TO-92-3, -40 to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Box (TB); Cut Tape (CT)","SCR Type":"Sensitive Gate","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","lifecycle_stage":"eol_hot","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"TO-92-3","Current - Hold (Ih) (Max)":"12 mA","Current - Off State (Max)":"1 µA","Voltage - On State (Vtm) (Max)":"1.6 V","Current - Gate Trigger (Igt) (Max)":"100 µA","Current - On State (It (AV)) (Max)":"800 mA","Voltage - Gate Trigger (Vgt) (Max)":"800 mV","Current - On State (It (RMS)) (Max)":"1.25 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"20A, 21A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.86","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.86000","currency":"USD"},{"qty":10,"price":"$0.75500","currency":"USD"},{"qty":100,"price":"$0.57870","currency":"USD"},{"qty":500,"price":"$0.45750","currency":"USD"},{"qty":1000,"price":"$0.37765","currency":"USD"},{"qty":2000,"price":"$0.37765","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/76f16bf0158fd975c23b0bc8302ceb90.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the TS110-8A2-AP a sensitive gate SCR?","answer":"Yes, the TS110-8A2-AP is classified as a sensitive-gate SCR with a maximum gate trigger current of 100 µA and maximum gate trigger voltage of 800 mV."},{"question":"What is the closest functional equivalent to the TS110-8A2-AP?","answer":"The X00602MA 1AA2 is a functional peer with the same sensitive-gate characteristic and through-hole TO-92 package, but its off-state voltage is 600 V versus the TS110-8A2-AP's 800 V. For 120 VAC applications the X00602MA is a drop-in alternative; for 240 VAC line switching the higher 800 V rating of the TS110-8A2-AP provides better margin."},{"question":"Can the TS110-8A2-AP be used for AC switching?","answer":"Yes, the TS110-8A2-AP is designed for AC switching applications. The 800 V off-state rating provides margin for 120 VAC and 240 VAC lines. The 20 A / 21 A non-repetitive surge rating handles inrush from lamps and motors. Note that as an SCR it conducts only in one direction, so for full-wave AC control it needs a bridge rectifier or a triac instead."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TS110-8A2-AP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TS110-8A2-AP when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T11:42:33.271Z","lastPublished":"2026-07-16T11:42:33.271Z","indexable":true}}