Popular transistors.

J308 MOSFET transistor.
Pinout. Datasheet.

Package: TO92, SOT-23.
Marking code for SOT-23 - Z08
Type of J308 transistor: JFET
Type of control channel: N - Channel
Maximum power dissipation (PD):0,36 W
Maximum drain-source voltage (VDSS): 25 V
Maximum gate-source voltage (VGS): 25 V.
Maximum continuous drain current (ID): 60 mA
Maximum junction temperature (Tj): 150C
Input Capacitance (Ciss):4.3pF
Output Capacitance (Coss):1.8pF
Maximum drain-source on-state resistance (RDS): 50 Ohm
Forward Transconductance(gfs):17,000