BUY KST42MTF https://www.utsource.net/itm/p/11275330.html
KST42MTF NPN Transistors(BJT) 300V 500mA/0.5A 500MHz 40 500mV/0.5V SOT-23/SC-59 marking 1D high voltage
Fairchild
Package: SOT-23/SC-59
Description: N-Channel Enhancement Mode MOSFET
Features:
rn Low On-Resistance
rn Low Input Capacitance
rn Low Input/Output Leakage
rn Fast Switching
rn ESD Protection
Applications:
rn DC-DC Converters
rn Battery Management
rn Load Switching
rn Motor Control
rn General Purpose Switching
(For reference only)