PMBT3904 datasheet by Philips Semiconductors

PMBT3904 Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the PMBT3904?
  The maximum operating temperature range for the PMBT3904 is -40°C to 150°C.
• How do I ensure the PMBT3904 is properly biased for optimal performance?
  To ensure proper biasing, connect the base of the transistor to a voltage source through a resistor, and connect the emitter to ground through a resistor. The collector should be connected to a load or a voltage source.
• What is the maximum collector current rating for the PMBT3904?
  The maximum collector current rating for the PMBT3904 is 1 A.
• Can I use the PMBT3904 as a switch, and if so, what are the considerations?
  Yes, the PMBT3904 can be used as a switch. However, consider the maximum collector current, collector-emitter voltage, and base-emitter voltage to ensure reliable switching. Also, ensure the transistor is properly biased and the load is within the transistor's power rating.
• How do I calculate the power dissipation of the PMBT3904?
  To calculate the power dissipation, multiply the collector current by the collector-emitter voltage. Ensure the calculated power dissipation is within the transistor's maximum power rating of 625 mW.