The 2SD1685 transistor can have a current gain of 120 to 560. The gain of the 2SD1685-E will be in the range from 120 to 200, for the 2SD1685-f it will be in the range from 160 to 320, for the 2SD1685-G it will be in the range from 280 to 560.

Type Designator: 2SC1685

Material of Transistor: Si

Polarity: NPN

Maximum Collector Power Dissipation (Pc): 0.25 W

Maximum Collector-Base Voltage |Vcb|: 60 V

Maximum Collector-Emitter Voltage |Vce|: 50 V

Maximum Emitter-Base Voltage |Veb|: 5 V

Maximum Collector Current |Ic max|: 0.1 A

Max. Operating Junction Temperature (Tj): 175 °C

Transition Frequency (ft): 75 MHz

Collector Capacitance (Cc): 7 pF

Forward Current Transfer Ratio (hFE), MIN: 650

Noise Figure, dB: –

Package: TO92