The maximum operating temperature range for the BC547 is -55°C to 150°C.
Yes, the BC547 can be used as a switch, but it's not recommended for high-frequency switching applications due to its relatively slow switching time.
The maximum collector current that the BC547 can handle is 100 mA.
No, the BC547 is not suitable for high-voltage applications. Its maximum collector-emitter voltage is 45V, and it's not designed to handle high-voltage spikes or transients.
Yes, the BC547 can be used in a linear amplifier circuit, but it's not the best choice due to its relatively low current gain (hFE) and high collector-emitter saturation voltage.