{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC817K-25E6327","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC817K-25E6327","canonicalUrl":"https://icboms.com/infineon/BC817K-25E6327","factsUrl":"https://icboms.com/api/mcp/products/BC817K-25E6327","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC817K-25E6327 NPN transistor, Automotive AEC-Q101 series, 45 V VCEO, 500 mA Ic, 500 mW Pd, hFE 160 min, 170 MHz fT, SOT-23-3 surface mount.","salesMarkdown":"## Automotive-grade NPN for general-purpose switching and drive The Infineon BC817K-25E6327 is an NPN bipolar junction transistor from the automotive-qualified BC817K series, carrying AEC-Q101 certification for use in vehicle electronics. With a DC current gain (hFE) of 160 minimum at 100 mA collector current and a transition frequency of 170 MHz, this part suits relay and solenoid drivers, load switches, and signal amplification stages in automotive body control modules, infotainment, and power distribution units. ## Gain and drive margin at 100 mA The hFE of 160 minimum at 100 mA and 1 V VCE gives a guaranteed current gain that allows a microcontroller GPIO (3.3 V logic, 5 mA drive) to saturate the transistor and switch a 500 mA load. The 700 mV VCE(sat) maximum at 50 mA base and 500 mA collector confirms the transistor will saturate cleanly in high-side or low-side switching configurations, keeping dissipation within the 500 mW package limit. ## Package and thermal considerations for SOT-23 The SOT-23-3 footprint (TO-236 / SC-59 variant) is a common small-signal transistor land pattern. For continuous operation near 500 mA and 1 V VCE(sat), the junction temperature approaches the 150 °C rating — derating is advised for ambient temperatures above 85 °C. There is no imminent supply risk for production builds.","metaTitle":"BC817K-25E6327 Infineon NPN Transistor, AEC-Q101, 45 V","metaDescription":"Infineon BC817K-25E6327 NPN transistor, AEC-Q101 automotive qualified, 45 V VCEO, 500 mA Ic, hFE 160 min at 100 mA, 170 MHz fT, SOT-23 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"Automotive, AEC-Q101","Package":"Bulk","Power - Max":"500 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","lifecycle_stage":"eol_hot","Operating Temperature":"150°C(TJ)","Frequency - Transition":"170MHz","Supplier Device Package":"PG-SOT23","Vce Saturation (Max) @ Ib, Ic":"700mV @ 50mA, 500mA","Current - Collector (Ic) (Max)":"500 mA","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"160 @ 100mA, 1V","Voltage - Collector Emitter Breakdown (Max)":"45 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b4e378390df63bd31f55c7981ea55926.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BC817K-25E6327/alternatives.json"},"ai":{"faq":[{"question":"Is BC817K-25E6327 automotive qualified?","answer":"Yes, the BC817K-25E6327 is part of the Automotive series and carries AEC-Q101 qualification, making it suitable for use in automotive electronic systems including body control, powertrain, and infotainment modules."},{"question":"What is the hFE range of BC817K-25E6327?","answer":"The BC817K-25E6327 has a minimum DC current gain (hFE) of 160 at 100 mA collector current and 1 V VCE. The \"25\" suffix in the order code denotes this specific gain grouping within the BC817K family."},{"question":"What is the maximum power dissipation of BC817K-25E6327?","answer":"The maximum power dissipation is 500 mW. This rating sets the thermal budget for the SOT-23 package; continuous operation near the 500 mA collector current limit requires attention to derating at elevated ambient temperatures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC817K-25E6327","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BC817K-25E6327 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}}