MMBT3904 datasheet by Diodes Incorporated

MMBT3904 Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the MMBT3904?
  The MMBT3904 can operate safely between -55°C to 150°C, but the recommended operating temperature range is -40°C to 85°C for optimal performance.
• How do I ensure the MMBT3904 is properly biased for saturation?
  To ensure the MMBT3904 is properly biased for saturation, the base-emitter voltage (VBE) should be around 0.7V, and the base current (IB) should be around 1/10th of the collector current (IC).
• What is the maximum collector current (IC) that the MMBT3904 can handle?
  The maximum collector current (IC) that the MMBT3904 can handle is 200mA, but it's recommended to keep it below 150mA for optimal performance and reliability.
• Can I use the MMBT3904 as a switch?
  Yes, the MMBT3904 can be used as a switch, but it's not recommended for high-frequency switching applications due to its relatively slow switching time (around 10-20ns).
• How do I protect the MMBT3904 from electrostatic discharge (ESD)?
  To protect the MMBT3904 from electrostatic discharge (ESD), use anti-static wrist straps, mats, and bags during handling and storage. Also, ensure that the device is properly grounded during assembly and testing.