2N7002LT1G is a 60V 115mA SMD MOSFET field effect transistor marked with 702 on the silk screen. It is on the Whatsminer H3 control board and packaged in SOT-23.
Product parameter:
FET Type: N-Channel
Technology: MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss): 60 V
Current - Continuous Drain (Id) @ 25°C: 115mA (Tc)
Drive Voltage (Max Rds On, Min Rds On): 5V, 10V
Rds On (Max) @ Id, Vgs: 7.5Ohm @ 500mA, 10V
Vgs(th) (Max) @ Id: 2.5V @ 250µA
Vgs (Max): ±20V
Input Capacitance (Ciss) (Max) @ Vds: 50 pF @ 25 V
Power Dissipation (Max): 225mW (Ta)
Operating Temperature: -55°C ~ 150°C (TJ)