The maximum operating temperature range for the BC857C is -40°C to 150°C, but it's recommended to operate within -40°C to 125°C for optimal performance and reliability.
To ensure proper biasing, make sure to follow the recommended voltage and current ratings, and use a suitable base resistor to limit the base current. A general rule of thumb is to keep the base current between 1/10 to 1/20 of the collector current.
The maximum collector-emitter voltage (Vce) that the BC857C can handle is 45V, but it's recommended to operate within 30V to ensure reliable operation and prevent damage to the transistor.
Yes, the BC857C can be used as a switch, but it's essential to consider the switching frequency, collector current, and base drive requirements. Ensure the transistor is properly biased, and the switching frequency is within the recommended range to prevent overheating and reduce electromagnetic interference (EMI).
To choose the correct base resistor value, consider the desired collector current, base-emitter voltage (Vbe), and the input signal characteristics. A general rule of thumb is to use a base resistor value between 1kΩ to 10kΩ, but this may vary depending on the specific application and requirements.
BC857C datasheet
by NXP Semiconductors
