This post explains for the transistor.
The Part Number is H945.
The function of this semiconductor is NPN Silicon Transistor.
The package is TO-92 Type.
Manufacturer: Shantou Huashan Electronic Devices
Preview images :
This is NPN Silicon Transistor. The H945 is designed for driver stage of AF amplifier And low speed switching.
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = 60 V
2. Collector to Emitter Voltage: Vceo = 50 V
3. Emitter to Base Voltage: Vebo = 5 V
4. Collector Current: Ic = 150 mA
5. Collector Dissipation : Pc = 250 mW
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C