{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR 149T E6327","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR-149T-E6327","canonicalUrl":"https://icboms.com/infineon/BCR-149T-E6327","factsUrl":"https://icboms.com/api/mcp/products/BCR%20149T%20E6327","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR 149T E6327 NPN pre-biased transistor, 50 V VCEO, 70 mA IC, 47 kΩ base resistor, 150 MHz transition frequency, SC-75 SOT-416 package, surface mount.","salesMarkdown":"## Pre-biased NPN — one less resistor on the BOM The Infineon BCR 149T E6327 is an NPN pre-biased transistor — a digital transistor with a 47 kOhm base resistor (R1) built into the package. That internal resistor sets the base drive, so the part switches on when the input voltage exceeds about 2.5 V (typical), and off below that threshold. For a procurement buyer, this means one fewer resistor to source, place, and inspect per switching node. The collector-emitter breakdown is rated at 50 V, and continuous collector current maxes at 70 mA — sized for logic-level loads, relay coils, and small-signal switching up to 150 MHz. ## SC-75 package — tiny, but you can still hand-rework it The BCR 149T E6327 comes in an SC-75 (SOT-416) package, supplier device code PG-SC75-3D. That's a three-lead package about 1.6 mm by 0.8 mm — small enough for dense boards but still large enough to rework with tweezers and a hot-air station if you keep the temperature under 300 °C and preheat the board. No exposed pad, so no thermal-via stitching needed — the 250 mW power limit is the total dissipation, and at 70 mA continuous you'll want to keep the ambient under 85 °C to stay inside that ceiling.","metaTitle":"Infineon BCR 149T E6327 NPN Pre-Biased Transistor, 50 V","metaDescription":"Infineon BCR 149T E6327 NPN pre-biased digital transistor, 50 V VCEO, 70 mA IC, 47 kΩ base resistor, 150 MHz fT. SC-75 SOT-416 package. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tape & Reel (TR)","Power - Max":"250 mW","Mounting Type":"Surface Mount","Package / Case":"SC-75, SOT-416","Transistor Type":"NPN - Pre-Biased","lifecycle_stage":"eol_hot","Base Product Number":"BCR 149","Resistor - Base (R1)":"47 kOhms","Frequency - Transition":"150 MHz","Supplier Device Package":"PG-SC75-3D","Vce Saturation (Max) @ Ib, Ic":"300mV @ 500µA, 10mA","Current - Collector (Ic) (Max)":"70 mA","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"120 @ 5mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/202f108dbe30526d17dacedf5ab2dc83.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to BCR 149T E6327?","answer":"Within the same BCR 149 base number family, the BCR 149 (without the T suffix) is the same die in a different package variant. The 'T' suffix in BCR 149T denotes the SC-75 (SOT-416) package."},{"question":"Can I replace BCR 149T with a standard NPN transistor?","answer":"Not directly — a standard NPN lacks the internal 47 kOhm base resistor. To replace it with a discrete NPN you would need to add an external 47 kOhm resistor between the drive signal and the base, and ensure the transistor itself matches the 50 V VCEO and 70 mA IC ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR-149T-E6327","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR-149T-E6327 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}}