{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"X0115MUF","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"X0115MUF","canonicalUrl":"https://icboms.com/stmicroelectronics/X0115MUF","factsUrl":"https://icboms.com/api/mcp/products/X0115MUF","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics X0115MUF, Sensitive Gate SCR, 1 A RMS, 600 V Off-State, 150 µA Igt, SMBflat-3L Surface Mount, -40°C to 125°C.","salesMarkdown":"## Sensitive-gate SCR for low-drive applications The STMicroelectronics X0115MUF is a sensitive-gate SCR rated for 1 A RMS on-state current and 600 V off-state blocking, housed in a 3-SMB flat-lead surface-mount package (SMBflat-3L). The 150 µA maximum gate trigger current (Igt) means a low-current signal — from a microcontroller GPIO, a comparator output, or a Hall-effect sensor — can fire the SCR directly without a driver transistor or buffer stage. This simplifies the BOM and saves board area in applications like relay coil latching, small solenoid drivers, fan speed controls, and capacitive discharge ignition circuits where the control signal is current-limited. ## 1 A RMS / 600 V — sizing the load and the isolation The 1 A RMS on-state current (It(RMS)) and 640 mA average (It(AV)) define the continuous load this SCR can handle. For a resistive load like a heater or incandescent lamp, the 1 A RMS rating gives headroom for inrush at turn-on. The 600 V off-state voltage (Vdrm/Vrrm) means it blocks mains peaks cleanly in 120 VAC or 277 VAC systems, and with margin for 240 VAC line transients. The 1.4 V maximum on-state voltage (Vtm) at rated current is typical for a 1 A SCR — the conduction loss is about 1.4 W at full load, so the SMBflat-3L package's thermal path to the PCB copper matters for continuous duty above 500 mA. ## Active lifecycle, no obsolescence clock ROHS3 compliance is confirmed. ## Package and footprint — SMBflat-3L The 3-SMB flat-lead package (SMBflat-3L) is a low-profile surface-mount alternative to through-hole SCRs in TO-92 or DPAK. The flat leads sit flush with the PCB, which helps with automated optical inspection and reduces tombstoning risk during reflow.","metaTitle":"ST X0115MUF Sensitive Gate SCR, 1 A 600 V, SMBflat-3L","metaDescription":"X0115MUF sensitive gate SCR: 1 A RMS, 600 V off-state, 150 µA Igt. SMBflat-3L surface mount, -40°C to 125°C. Active, RoHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","SCR Type":"Sensitive Gate","Mounting Type":"Surface Mount","Package / Case":"3-SMB, Flat Lead","lifecycle_stage":"eol_hot","Voltage - Off State":"600 V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"SMBflat-3L","Current - Hold (Ih) (Max)":"5 mA","Current - Off State (Max)":"1 µA","Voltage - On State (Vtm) (Max)":"1.4 V","Current - Gate Trigger (Igt) (Max)":"150 µA","Current - On State (It (AV)) (Max)":"640 mA","Voltage - Gate Trigger (Vgt) (Max)":"800 mV","Current - On State (It (RMS)) (Max)":"1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.42","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.42000","currency":"USD"},{"qty":10,"price":"$0.36300","currency":"USD"},{"qty":100,"price":"$0.27100","currency":"USD"},{"qty":500,"price":"$0.21292","currency":"USD"},{"qty":1000,"price":"$0.16452","currency":"USD"},{"qty":2000,"price":"$0.15978","currency":"USD"},{"qty":5000,"price":"$0.15978","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9e052c0156d0216028969d82924dffda.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I find the datasheet for X0115MUF?","answer":"The datasheet for the X0115MUF is available from STMicroelectronics' product page. The key electrical ratings are listed here: 1 A RMS on-state current, 600 V off-state voltage, 150 µA maximum gate trigger current, and 1.4 V maximum on-state voltage."},{"question":"What is the gate trigger current (Igt) of X0115MUF?","answer":"The X0115MUF has a maximum gate trigger current (Igt) of 150 µA. This low threshold classifies it as a sensitive-gate SCR, meaning it can be triggered directly by a low-current signal from a microcontroller GPIO, a comparator, or a sensor output without an additional driver transistor."},{"question":"Is the X0115MUF RoHS compliant?","answer":"Yes, the X0115MUF is ROHS3 compliant, meeting the latest Restriction of Hazardous Substances directive requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/X0115MUF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/X0115MUF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T11:42:57.866Z","lastPublished":"2026-07-16T11:42:57.866Z","indexable":true}}