{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR421UE6327HTSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR421UE6327HTSA1","canonicalUrl":"https://icboms.com/infineon/BCR421UE6327HTSA1","factsUrl":"https://icboms.com/api/mcp/products/BCR421UE6327HTSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies BCR421UE6327HTSA1 linear LED driver, 40V output, 200mA per channel, PWM dimming, AEC-Q101 qualified, SC-74-6 package.","salesMarkdown":"## Linear LED driver with 200 mA constant-current sink The BCR421UE6327HTSA1 is a linear LED driver from Infineon, designed to sink up to 200 mA per channel with a 40 V output rating. The constant-current regulation keeps LED brightness stable across supply variations — useful for automotive taillight or interior lighting strings where the bus voltage swings with engine load. ## PWM dimming and AEC-Q101 qualification Dimming is handled via a PWM input, so the LED current is either full-on or off at the switching frequency — the linear regulator's output capacitor filters the ripple, and the LED sees a clean average current. Rated for the automotive temperature range under AEC-Q101, this part suits under-hood or cabin lighting where the ambient can hit 125 °C. The single-channel output with an integrated switch keeps the external BOM to a resistor and a bypass cap. ## Active production and compliance The PG-SC74-6 package is a standard SOT-457 footprint — the same land pattern used by many small-signal MOSFETs and linear regulators, so the board layout is straightforward.","metaTitle":"BCR421UE6327HTSA1 Infineon Linear LED Driver, 200mA, SC-74","metaDescription":"Infineon BCR421UE6327HTSA1 linear LED driver, 40V output, 200mA per channel, PWM dimming, AEC-Q101 qualified. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q101","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Linear","Series":"Automotive, AEC-Q101","Dimming":"PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Lighting","Mounting Type":"Surface Mount","Package / Case":"SC-74, SOT-457","lifecycle_stage":"eol_hot","Voltage - Output":"40V","Number of Outputs":"1","Internal Switch(s)":"Yes","Voltage - Supply (Max)":"4.5V","Supplier Device Package":"PG-SC74-6","Current - Output / Channel":"200mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.67","priceTiers":[{"qty":1,"price":"$0.67000","currency":"USD"},{"qty":10,"price":"$0.57400","currency":"USD"},{"qty":25,"price":"$0.53560","currency":"USD"},{"qty":100,"price":"$0.42860","currency":"USD"},{"qty":250,"price":"$0.39796","currency":"USD"},{"qty":500,"price":"$0.33674","currency":"USD"},{"qty":1000,"price":"$0.26021","currency":"USD"},{"qty":3000,"price":"$0.23725","currency":"USD"},{"qty":6000,"price":"$0.23293","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6022e9671646afe4a5e2aff374a98ec1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BCR421UE6327HTSA1/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output current per channel?","answer":"The constant-current sink is rated 200 mA per channel. The output voltage can go up to 40 V, so the power dissipation in the package is the product of the voltage drop across the driver and the set current — keep the junction temperature within the SC-74's thermal limits by derating for ambient."},{"question":"What package does BCR421UE6327HTSA1 use?","answer":"It comes in a PG-SC74-6 package, which is a standard SOT-457 footprint. The part is surface-mount and supplied in tape and reel or cut tape options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR421UE6327HTSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR421UE6327HTSA1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}