BUY BF824 https://www.utsource.net/itm/p/11276469.html
BF824 PNP transistors(BJT) -30V -25mA 450MHz 50 SOT-23/SC-59 marking F8 low current/high voltage
Manufacturer: NXP/Philips Package: SOT-23/SC-59 Description: The BF824 is a N-channel silicon field-effect transistor from NXP/Philips. It is designed for use in RF applications such as amplifiers, mixers, oscillators, and switches. Features: Low noise High gain High linearity Low capacitance Low power consumption High frequency operation Applications: RF amplifiers RF mixers RF oscillators RF switches Wireless communication systems (For reference only)