{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTF3125EJXUMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTF3125EJXUMA1","canonicalUrl":"https://icboms.com/infineon/BTF3125EJXUMA1","factsUrl":"https://icboms.com/api/mcp/products/BTF3125EJXUMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies BTF3125EJXUMA1, Automotive AEC-Q100, Low-Side Power Switch, 1-Channel, 2A, 110mOhm, PG-TDSO-8-31, Tape & Reel.","salesMarkdown":"## AEC-Q100 grade and the 150°C junction ceiling The BTF3125EJXUMA1: That 150°C TJ(max) covers the under-hood ambient profile plus self-heating margin — a 2A continuous load through the 110 mOhm typical Rds(on) dissipates about 0.44W, which at 150°C junction leaves roughly 50°C headroom above a 100°C ambient in still air, assuming the exposed pad is soldered to a reasonable copper area. ## Supply rails and fault protection The load-side voltage range is 3V to 28V, while the logic supply (Vcc/Vdd) runs from 3V to 5.5V — this split-rail architecture lets the switch handle a 12V or 24V automotive battery bus while the control side stays at a standard 3.3V or 5V MCU logic level. The input is non-inverting and accepts a PWM interface, so the duty cycle maps directly to the output on-time. Integrated fault protection covers over-current, over-voltage, and short-circuit events. For a low-side switch driving an inductive load like a solenoid or relay, the over-voltage clamp catches the flyback spike without an external freewheeling diode — the switch self-limits the drain voltage during turn-off. ## Package and thermal interface Without that via pattern, the RthJA rises and the 2A continuous rating derates earlier than the 150°C junction limit would suggest. ## Sourcing and compliance Sourced through authorized and independent distribution; lead time and pricing confirmed at RFQ against the BOM quantity.","metaTitle":"Infineon BTF3125EJXUMA1 Low-Side Switch, 2A, AEC-Q100","metaDescription":"Infineon BTF3125EJXUMA1 automotive low-side power switch, 2A output, 110 mOhm Rds(on), AEC-Q100 qualified, active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"PWM","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"110mOhm","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width) Exposed Pad","Voltage - Load":"3V ~ 28V","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Voltage, Short Circuit","Number of Outputs":"1","Output Configuration":"Low Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 150°C (TJ)","Current - Output (Max)":"2A","Supplier Device Package":"PG-TDSO-8-31","Voltage - Supply (Vcc/Vdd)":"3V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.37","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.37000","currency":"USD"},{"qty":10,"price":"$1.22400","currency":"USD"},{"qty":25,"price":"$1.16200","currency":"USD"},{"qty":100,"price":"$0.95450","currency":"USD"},{"qty":250,"price":"$0.89228","currency":"USD"},{"qty":500,"price":"$0.78852","currency":"USD"},{"qty":1000,"price":"$0.62251","currency":"USD"},{"qty":3000,"price":"$0.58101","currency":"USD"},{"qty":6000,"price":"$0.55196","currency":"USD"},{"qty":15000,"price":"$0.53121","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fa8a865a0baca073290389f0796fe8d3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output current rating and Rds(on) of BTF3125EJXUMA1?","answer":"The maximum continuous output current is 2A, and the typical on-resistance is 110 mOhm. The Rds(on) is specified at the junction temperature and gate drive conditions in the datasheet."},{"question":"What fault protection does BTF3125EJXUMA1 include?","answer":"The switch integrates over-current, over-voltage, and short-circuit protection. The over-voltage clamp handles inductive load flyback without an external diode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTF3125EJXUMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTF3125EJXUMA1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}