NPN

2SD822 Datasheet – 600V, 7A, NPN, TO-3 – Toshiba

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This NPN transistor is a type of bipolar junction transistor (BJT) that consists of two n-type semiconductor materials separated by a single p-type material.

Part Number: 2SD822, D822

Function: 600V, 7A, NPN Transistor

Package: TO-3 Type

Manufacturer: Toshiba

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Description

This is 1500V, Silicon NPN transistor. The 2SD822 is a bipolar junction transistor (BJT) designed for general-purpose amplifier and switching applications.  It is optimized for high-voltage switching, fast transition times, and robust operation under inductive load conditions.

Features of 2SD822

1. High collector-base voltage capability (VCBO = 1500V)

2. ow collector-emitter saturation voltage

3. High-speed switching

4. Glass Passivated Collector-Base Junction.

Pinout

2SD822

Absolute Maximum Ratings (Ta = 25 °C)

Parameter Symbol Value Unit
Collector-Base Voltage VCBO 1500 V
Collector-Emitter Voltage VCEO 600 V
Emitter-Base Voltage VEBO 5 V
Collector Current IC 7 A
Emitter Current IE -7 A
Power Dissipation (Tc = 25°C) PC 50 W
Junction Temperature Tj 150 °C
Storage Temperature Tstg -55 to 150 °C

Electrical Characteristics

2SD822 Datasheet PDF

Advantages

1. High current gain makes it suitable for use in low-power amplifier circuits.

2. Low collector-emitter saturation voltage reduces power dissipation and improves efficiency in switching applications.

Application

  • CRT horizontal deflection output stage
  • Flyback transformer driver circuits
  • High-voltage pulse generators
  • Switching power stages with inductive loads

2SD822 Datasheet PDF

2SD822 pdf

D13005A Datasheet – 450V, 4A, NPN, Transistor ( PDF )

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Part Number: D13005A, 3DD13005A

Function: 450V, 4A, High-voltage high-speed switching NPN power transistor

Package: TO-220, TO-126 Type

Manufacturer: Jilin Sino

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D13005A datasheet pdf

Description

D13005A is a high-voltage, fast-switching NPN power transistor designed for switching applications in off-line power supplies, electronic ballasts, and energy-efficient lighting systems. It offers high breakdown voltage, good current handling capability, and fast switching characteristics, making it suitable for high-frequency SMPS and inverter designs.

Features

  • High collector-emitter breakdown voltage (up to 400V)
  • High collector current capability (up to 4A)
  • Fast switching performance for high-frequency operation
  • High power dissipation capability (40W)
  • Good reliability and thermal stability
  • RoHS compliant

Pinout

D13005A datasheet

Absolute Maximum Ratings (Ta = 25 °C)

Parameter Symbol Value Unit
Collector-Base Voltage VCBO 450 V
Collector-Emitter Voltage VCEO 400 V
Emitter-Base Voltage VEBO 9 V
Collector Current IC 4 A
Power Dissipation PC 40 W
Junction Temperature Tj 150 °C
Storage Temperature Tstg -55 to 150 °C

Functional Description

  • Designed for high-voltage switching in flyback and forward converter topologies
  • Operates efficiently at high frequencies compared to standard BJTs
  • Provides good trade-off between switching speed and conduction losses

Design Notes

  • Requires proper base drive (typically via driver transformer or resistor network)
  • Use heat sink for high power operation to maintain junction temperature
  • Snubber circuits (RC or RCD) recommended to suppress voltage spikes in inductive loads
  • Ensure safe operating area (SOA) is not exceeded during switching transitions
  • Consider replacing with MOSFET in newer high-efficiency designs

Typical Applications

  • Switch-mode power supplies (SMPS)
  • Electronic ballasts for fluorescent lamps
  • Energy-saving lighting circuits (CFL)
  • High-frequency transformers and inverters
  • General-purpose power switching

How to Choose This Part

  • Select for high-voltage (>300V) switching applications
  • Suitable when cost-sensitive designs prefer BJTs over MOSFETs
  • Ensure switching frequency and efficiency requirements match BJT characteristics
  • Consider thermal management and base drive complexity

Alternative / Equivalent Products

  • MJE13005 (common equivalent)
  • 2SC13005 (Japanese designation)
  • FJP13005 (Fairchild/ON Semiconductor)
  • ST13005 (STMicroelectronics variant)

 

Other data sheets are available within the file: D13005A220, D13005A-220

D13005A Datasheet PDF Download


D13005A pdf