2N5400 PNP High-Voltage Transistor

Overview

The 2N5400 is a PNP (Positive-Negative-Positive) high-voltage transistor housed in a TO-92 (SOT54) plastic package. This component is designed for applications requiring high-voltage switching and amplification while maintaining low current consumption. Its robust construction and reliable performance make it suitable for a wide range of electronic circuits, including audio amplifiers, power supplies, and signal processing systems.

With a maximum collector-emitter voltage (V_CEO) of 150V and a collector current (I_C) rating of up to 300mA, the 2N5400 is an excellent choice for low-power, high-voltage applications. Its compact TO-92 package ensures ease of integration into various circuit designs, making it a versatile component for both hobbyists and professional engineers.

Features

• High Voltage Capability: Supports a maximum collector-emitter voltage (V_CEO) of 150V, making it ideal for high-voltage circuits.
• Low Current Operation: Maximum collector current (I_C) of 300mA ensures efficient performance in low-power applications.
• PNP Polarity: Suitable for designs requiring a PNP transistor configuration.
• Compact TO-92 Package: The small, plastic SOT54 package allows for easy PCB mounting and space-efficient designs.
• Reliable Performance: Designed for stable operation in a variety of environmental conditions.
• Wide Applications: Versatile enough for use in amplification, switching, and signal processing circuits.

Applications

The 2N5400 PNP transistor is widely used in electronic circuits where high-voltage and low-current characteristics are required. Below are some common applications:

• Audio Amplifiers: Used in the output stages of audio amplifiers for signal amplification.
• Power Supplies: Employed in voltage regulation and switching circuits within power supply units.
• Signal Processing: Suitable for analog signal processing and conditioning circuits.
• Switching Circuits: Acts as a switch in high-voltage, low-current applications.
• Industrial Controls: Used in control systems requiring reliable high-voltage transistors.
• Consumer Electronics: Found in devices such as televisions, radios, and other household electronics.

Electrical Characteristics

The following table summarizes the key electrical characteristics of the 2N5400 transistor under standard operating conditions (unless otherwise specified):

Absolute Maximum Ratings

• Collector-Emitter Voltage (V_CEO): 150V
• Collector-Base Voltage (V_CBO): 160V
• Emitter-Base Voltage (V_EBO): 5V
• Collector Current (I_C): 300mA (continuous)
• Total Power Dissipation (P_tot): 625mW at 25°C
• Operating Junction Temperature (T_j): -55°C to +150°C
• Storage Temperature Range (T_stg): -55°C to +150°C

Electrical Characteristics (T_A = 25°C unless otherwise noted)

• DC Current Gain (h_FE): 40 to 240 (at I_C = 10mA, V_CE = 5V)
• Collector-Emitter Saturation Voltage (V_CE(sat)): 0.5V (max) at I_C = 50mA, I_B = 5mA
• Base-Emitter Saturation Voltage (V_BE(sat)): 1.2V (max) at I_C = 50mA, I_B = 5mA
• Transition Frequency (f_T): 100MHz (min) at I_C = 10mA, V_CE = 10V, f = 100MHz
• Output Capacitance (C_obo): 4pF (max) at V_CB = 10V, f = 1MHz

Package Information

The 2N5400 is available in a TO-92 (SOT54) plastic package, which is a widely used through-hole package for discrete transistors. Below are the key dimensions and mechanical specifications:

TO-92 Package Dimensions

• Package Type: TO-92 (SOT54)
• Body Material: Molded Plastic
• Lead Material: Copper Alloy
• Lead Finish: Tin-Plated
• Weight: Approximately 0.2 grams
• Mounting Style: Through-Hole
• Pin Configuration:
  • Pin 1: Emitter (E)
  • Pin 2: Base (B)
  • Pin 3: Collector (C)

Mechanical Drawing (Approximate Dimensions)

• Total Height: 5.2mm (max)
• Body Diameter: 4.7mm (max)
• Lead Length: 25.4mm (standard)
• Lead Spacing: 2.54mm (between pins)

Conclusion

The 2N5400 PNP high-voltage transistor is a reliable and versatile component suitable for a wide range of electronic applications. Its high-voltage capability, low current operation, and compact TO-92 package make it an excellent choice for designers working on amplification, switching, and signal processing circuits. With its robust electrical characteristics and ease of integration, the 2N5400 remains a popular choice among engineers and hobbyists alike.