This post explains for the transistor.
The Part Number is TIP100.
The function of this semiconductor is Darlington NPN Transistor.
The package is TO-220 Type.
Manufacturer: TAITRON Components
Preview images :
This is 60V, 8A, Darlington Power Transistor.
1. Designed for general-purpose amplifier and low speed switching applications
2. RoHS Compliant
3. Weight : 0.08 ounces, 2.24 grams
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = 60 V
2. Collector to Emitter Voltage: Vceo = 60 V
3. Emitter to Base Voltage: Vebo = 5 V
4. Collector Current: Ic = 8 A
5. Collector Dissipation : Pc =
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -65 ~ +150°C