This post explains for the transistor.
The Part Number is C2837, 2SC2837.
The function of this semiconductor is 150V, 10A, NPN Transistor.
The package is TO-3PN Type
Manufacturer: SavantIC
Preview images :
Description
C2837 is Silicon NPN Power Transistor.
Characteristics:
1. Current Amplification: NPN transistors are designed to amplify electrical current, and can be used in a wide range of electronic applications such as amplifiers, switches, and oscillators.
2. Forward Biased: In order to operate, the base-emitter junction of an NPN transistor must be forward biased, meaning that the base must be connected to a positive voltage relative to the emitter.
3. High Input Impedance: NPN transistors have a high input impedance, which means that they are less likely to draw current from the input source, and are therefore less likely to cause a drop in voltage across the source.
4. Inverted Output: NPN transistors are known for producing an inverted output relative to their input. That is, if the input signal is high, the output signal will be low, and vice versa. This behavior is due to the way the transistor is designed and is an important characteristic for many electronic applications.
Features:
1. Complement to type 2SA1186
2. For audio and general purpose applications
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = 150 V
2. Collector to Emitter Voltage: Vceo = 150 V
3. Emitter to Base Voltage: Vebo = 5 V
4. Collector Current: Ic = 10 A
5. Collector Dissipation : Pc = 100 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C