Part Number: C4977, 2SC4977

Function: 400V, 7A, NPN Transistor

Package: TO-220F Type

Manufacturer: INCHANGE Semiconductor

Images:

Description

C4977 is 400V, 7A, Silicon NPN Power Transistor.

Features:

1. Collector-Emitter Sustaining Voltage: VCEO(SUS)= 400V(Min)

2. Fast Switching Speed

3. Collector-Emitter Saturation Voltage: VCE(sat)= 0.8V(Max.)@ IC= 4.0A

 

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 450 V

2. Collector to Emitter Voltage: Vceo = 400 V

3. Emitter to Base Voltage: Vebo = 8 V

4. Collector Current: Ic = 7 A

5. Collector Dissipation : Pc = 40 W

6. Junction Temperature: Tj = 150°C

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

Applications:

Designed for use in high-voltage, high-speed , power switching in inductive circuit , they are particularly suited for 115 and 220V switchmode applications such as switching regulator’s, inverters, DC-DC converter.

 

C4977 PDF Datasheet

This post explains for the transistor 2SD2646.

The Part Number is D2646.

The function of this semiconductor is 700V, NPN transistor.

The package : TO-3PMLH Type.

Manufacturer: Sanyo Semiconductor

Preview images :

Description

D2646 is 700V, 10A, NPN Triple Diffused Planar Silicon Transistor. 

 

Features:

• High speed.

• High breakdown voltage(VCBO=1500V).

• High reliability(Adoption of HVP process).

• Adoption of MBIT process.

 

 

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 1500 V

2. Collector to Emitter Voltage: Vceo = 700 V

3. Emitter to Base Voltage: Vebo = 5 V

4. Collector Current: Ic = 10 A

5. Collector Dissipation : Pc = 3 W

6. Junction Temperature: Tj = 150°C

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

D2646 PDF Datasheet