{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"X0202NA 1BA2","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"X0202NA-1BA2","canonicalUrl":"https://icboms.com/stmicroelectronics/X0202NA-1BA2","factsUrl":"https://icboms.com/api/mcp/products/X0202NA%201BA2","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics X0202NA 1BA2, Sensitive Gate SCR, 800 V Off State, 1.25 A RMS On State, 200 µA Gate Trigger, TO-92-3, Through Hole, -40°C to 125°C.","salesMarkdown":"## Sensitive gate SCR for low-power trigger circuits The STMicroelectronics X0202NA 1BA2 is a sensitive gate silicon controlled rectifier (SCR) in a TO-92-3 through-hole package, designed for applications where the gate drive comes from a low-current source such as a microcontroller I/O pin, a Hall-effect sensor, or a comparator output. Its defining characteristic is the 200 µA maximum gate trigger current (Igt) and 800 mV maximum gate trigger voltage (Vgt), which classify it as a sensitive gate device — meaning it can be switched on directly without a separate driver transistor, saving board space and BOM cost in low-power phase-control and switching circuits. ## 800 V blocking and 1.25 A continuous rating With an 800 V off-state voltage rating, the X0202NA 1BA2 is suited for 120 VAC and 240 VAC line-powered designs where the SCR must block the full rectified peak. The 1.25 A RMS on-state current (800 mA average) defines the continuous load it can handle in a TO-92 package — typical loads include small solenoids, incandescent lamps, resistive heaters, and low-power universal motors. The 22.5 A / 25 A non-repetitive surge current rating (50/60 Hz) gives headroom for capacitive inrush or short-duration fault events without immediate failure. ## Active lifecycle and ROHS3 compliance For dual-source planning, the closest functional peer in the same sensitive-gate, TO-92 family is the X00602MA 1AA2, which is rated at 600 V off-state — a drop of 200 V from this part. If your design requires the full 800 V blocking, the X0202NA 1BA2 is the correct choice; the 600 V variant is a cost-reduction option only if the application's peak voltage stays below 600 V.","metaTitle":"STMicroelectronics X0202NA 1BA2 Sensitive Gate SCR, 800 V","metaDescription":"Sensitive gate SCR from STMicroelectronics, 800 V off-state, 1.25 A RMS, 200 µA max gate trigger. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Bulk","SCR Type":"Sensitive Gate","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","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)":"5 mA","Current - Off State (Max)":"5 µA","Voltage - On State (Vtm) (Max)":"1.45 V","Current - Gate Trigger (Igt) (Max)":"200 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)":"22.5A, 25A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.89","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.89000","currency":"USD"},{"qty":10,"price":"$0.79500","currency":"USD"},{"qty":100,"price":"$0.61950","currency":"USD"},{"qty":500,"price":"$0.51176","currency":"USD"},{"qty":1000,"price":"$0.44468","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/52351c2582abfbc575e4cc09800e7221.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is X0202NA 1BA2 a sensitive gate SCR and what are its trigger specifications?","answer":"Yes, the X0202NA 1BA2 is classified as a sensitive gate SCR. Its maximum gate trigger current is 200 µA and maximum gate trigger voltage is 800 mV, allowing direct drive from low-current logic or sensor outputs without a separate driver stage."},{"question":"What is the replacement for X0202NA 1BA2 if I need a lower voltage rating?","answer":"The closest functional second-source in the same sensitive-gate, TO-92 family is the X00602MA 1AA2, which is rated at 600 V off-state. This is a drop-in replacement only if your application's peak voltage stays below 600 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/X0202NA-1BA2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/X0202NA-1BA2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T11:05:06.073Z","lastPublished":"2026-07-16T11:05:06.073Z","indexable":true}}