PMBF170 datasheet by Philips Semiconductors

PMBF170 Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for PMBF170?
  The maximum operating temperature range for PMBF170 is -40°C to 150°C, although it's recommended to operate within -40°C to 125°C for optimal performance.
• How do I ensure the PMBF170 is properly biased for optimal performance?
  To ensure proper biasing, connect the base of the transistor to a voltage source through a resistor (Rb) and a capacitor (Cb) in parallel. The value of Rb should be chosen to provide a current of around 1-2 mA, and Cb should be around 10-100 nF to filter out high-frequency noise.
• What is the recommended PCB layout for PMBF170 to minimize thermal resistance?
  To minimize thermal resistance, it's recommended to use a thermal pad on the PCB, and connect it to a large copper area or a heat sink. The thermal pad should be placed directly under the PMBF170 package, and the copper area or heat sink should be connected to a ground plane or a heat sink.
• How do I protect the PMBF170 from electrostatic discharge (ESD)?
  To protect the PMBF170 from ESD, handle the device by the body or pins, avoid touching the pins, and use an anti-static wrist strap or mat. Also, ensure that the PCB has proper ESD protection, such as TVS diodes or ESD protection networks, and follow proper soldering and assembly procedures.
• What is the maximum collector-emitter voltage (Vce) that PMBF170 can handle?
  The maximum collector-emitter voltage (Vce) that PMBF170 can handle is 700 V. However, it's recommended to operate within 500 V to ensure reliable operation and to prevent damage to the device.