BUY BF824 https://www.utsource.net/itm/p/22050.html
PNP Medium Frequency TransistorPNP
Description: The BF824 is a N-channel silicon MOSFET transistor manufactured by Philips. It is a small signal transistor housed in a SOT-23 surface mount package. Features: Low on-resistance Low input capacitance Low gate charge Low threshold voltage High speed switching High current handling capability Low noise Applications: The BF824 is suitable for use in a wide range of applications, including audio amplifiers, DC-DC converters, power management circuits, and switching power supplies. (For reference only)