This post explains for the transistor.

The Part Number is D5011, 2SD5011.

The function of this semiconductor is 800V, 3.5A, NPN transistor.

Manufacturer: Inchange Semiconductor

Preview images :

Description

D5011 is 800V, 3.5A, Silicon NPN Power Transistor. 

 

Features

1. High Breakdown Voltage: VCBO= 1500V (Min)

2. High Switching Speed

3. High Reliability

4. Built-in Damper Diode

 

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 1500 V

2. Collector to Emitter Voltage: Vceo = 800 V

3. Emitter to Base Voltage: Vebo = 6 V

4. Collector Current: Ic = 3.5 A

5. Collector Dissipation : Pc = 50 W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C

 

Applications:

1. Designed for color TV horizontal output applications

D5011 PDF Datasheet

Part Number: 2SD2102

Function: 60V, 4A, NPN Transistor

Package: TO-220FM Type

Manufacturer: Hitachi Semiconductor

Images:

Description

The 2SD2102 is 60V, 4A, Silicon NPN triple Diffused Transistor.

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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 = 7 V

4. Collector Current: Ic = 5 A

5. Collector Dissipation : Pc = 2 W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C

 

Applications:

1. Low Frequency power Amplifer.

 

D2102 PDF Datasheet

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