The NXP BC817‑40 is a robust NPN bipolar transistor engineered for general-purpose switching and amplification in compact PCB designs. With a 45 V collector-emitter rating, 500 mA maximum collector current, and housed in a SOT‑23 footprint (~2.9 × 1.3 × 1 mm), this device packs high-value performance in a small form factor.
Standout Features and Benefits of the NPN Bipolar Transistor
- High Gain Performance: With a range from 250 to 600, the BC817-40 ensures efficient amplification and responsiveness in switching circuits.
- Compact & Reliable: The SOT‑23 package supports space-constrained applications while offering sturdy SMD assembly compatibility.
- Thermal Resilience: Rated up to 150 °C, it is suited for demanding environments and industrial-grade thermal loads.
- Exceptional Current Gain: The elevated gain ensures minimal signal loss and maximal efficiency, making it perfect for precision amplification in analog front-ends and digital control logic.
Product Versatile Utility
Ideal for switching, amplification, and buffer roles across a variety of electronic systems, making it a versatile asset in global B2B supply chains.
Why Buy It?
The BC817‑40 bridges performance and practicality, delivering strong current handling, thermal stability, and mounting flexibility. Designers targeting compact and resilient circuits in industrial, automotive (non-AEC), consumer electronics, or instrumentation will find a reliable partner in this transistor.