{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS40K21EJCXUMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS40K21EJCXUMA1","canonicalUrl":"https://icboms.com/infineon/BTS40K21EJCXUMA1","factsUrl":"https://icboms.com/api/mcp/products/BTS40K21EJCXUMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon PROFET, BTS40K21EJCXUMA1, Automotive AEC-Q100, High-Side Switch, N-Channel, 200 mOhm Rds(on) typ, 1.5A output, 5V-36V load, PG-DSO-8 package, -40°C to 150°C.","salesMarkdown":"## High-side switch for automotive loads — what this PROFET delivers The BTS40K21EJCXUMA1 is a single-channel, N-channel high-side switch from Infineon's PROFET family, AEC-Q100 qualified for automotive applications. It switches a 5V to 36V load with a typical on-resistance of 200 mOhm and delivers up to 1.5A continuous output. ## 200 mOhm Rds(on) and 150°C junction — thermal budget for underhood duty The 200 mOhm typical Rds(on) sets the conduction loss floor. The junction is rated to 150°C. A 5V to 36V load supply range covers nominal 12V and 24V automotive electrical systems, including load-dump transients within the absolute maximum ratings. The device integrates fault protection: current limiting, open-load detection, over-temperature shutdown, over-voltage clamp, and under-voltage lockout. ## PG-DSO-8 with exposed pad — layout and thermal relief The package is PG-DSO-8, a surface-mount design with exposed pad. ## Obsolete — sourcing through independent distribution This part carries an Obsolete lifecycle status.","metaTitle":"BTS40K21EJCXUMA1 PROFET High-Side Switch, 200 mOhm, AEC-Q100","metaDescription":"Infineon BTS40K21EJCXUMA1 is an AEC-Q100 qualified PROFET high-side switch with 200 mOhm Rds(on), 1.5A output, -40°C to 150°C junction temp.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"Automotive, AEC-Q100, PROFET®","Package":"Tape & Reel (TR)","Features":"-","Interface":"On/Off","Input Type":"-","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"200mOhm","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width) Exposed Pad","Product Status":"Obsolete","Voltage - Load":"5V ~ 36V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting, Open Load Detect, Over Temperature, Over Voltage, UVLO","Number of Outputs":"1","Base Product Number":"BTS40K21","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 150°C (TJ)","Current - Output (Max)":"1.5A","Supplier Device Package":"PG-DSO-8","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/16be9f95a9f3fd7c4d3ee1bbfe0861f8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of BTS40K21EJCXUMA1?","answer":"The typical Rds(on) is 200 mOhm. This is specified at 25°C junction temperature; actual on-resistance increases with junction temperature, roughly doubling at 150°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS40K21EJCXUMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS40K21EJCXUMA1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}