MPSA42 Pinout, Equivalent Application Datasheet

The MPSA42 NPN transistor is a high-voltage, low-current semiconductor device commonly used in signal amplification and switching circuits. This article explains its electrical characteristics, typical applications, operating behavior, and detailed mpsa42 pinout information to support proper use in electronic designs.

Introduction

The MPSA42 is an NPN bipolar junction transistor designed for high-voltage, low-current applications. It is widely used in audio circuits, display drivers, and signal processing stages where voltage handling capability is more important than current capacity. The TO-92 package provides a compact form factor suitable for space-constrained PCB layouts.

Its predictable performance and stable operation make the MPSA42 a practical choice for both commercial electronics and hobbyist projects.

MPSA42 Pinout

Understanding the MPSA42 Pinout Configuration

The MPSA42 pinout follows a Collector–Base–Emitter (C-B-E) arrangement when viewed from the flat side of the TO-92 package. Correct pin identification is essential for proper circuit operation and to prevent damage.

MPSA42 Key Features

• High voltage handling capability
• Stable switching and amplification behavior
• Compact TO-92 package
• Suitable for signal-level applications
• Easy integration into PCB layouts
• Reliable performance in continuous operation

Characteristics / Specifications

• Transistor Type: NPN
• Package Type: TO-92
• Collector-Emitter Voltage (VCE): 300V
• Collector-Base Voltage (VCB): 300V
• Emitter-Base Voltage (VEB): 6V
• Continuous Collector Current (IC): 100mA
• Power Dissipation (PD): 500mW
• Maximum Junction Temperature (Tj): 150°C
• Storage Temperature Range (Tstg): -65°C to 150°C

More Circuit Layouts

Key Applications of MPSA42 NPN Transistor

• High-voltage signal amplification
• Display driver circuits
• Audio amplifier stages
• Switching in high-voltage, low-current circuits
• Signal processing equipment
• Consumer and industrial electronics

Equivalent of MPSA42 NPN Transistor

The following transistors can be considered as alternatives to the MPSA42 with suitable design adjustments:

• MPSA44
• 2N5551
• BF422
• BF423

Working Principle of MPSA42

The MPSA42 operates as a bipolar junction transistor where a small base current controls a larger current flow between the collector and emitter. When the base-emitter junction is forward biased, charge carriers move through the device, allowing amplification or switching action.

This operating behavior makes the MPSA42 suitable for controlling signals in high-voltage, low-current applications.

Frequently Asked Questions (FAQ)

Q1: What package is used for the MPSA42 transistor?
The MPSA42 is available in a TO-92 package.

Q2: What is the MPSA42 pinout order?
The pin configuration is Collector, Base, and Emitter (C-B-E).

Q3: Can MPSA42 be used in high-voltage circuits?
Yes, it is specifically designed for high-voltage, low-current applications.

Q4: Is MPSA42 suitable for audio applications?
Yes, it is commonly used in audio signal and driver stages.

Conclusion

The MPSA42 NPN transistor is a reliable solution for high-voltage electronic applications that require stable signal control and compact design. With a clearly defined mpsa42 pinout, consistent operating characteristics, and broad application range, it is well suited for signal amplification and switching tasks in modern electronic circuits.

Datasheet of MPSA42 NPN Transistor

Click the following Button to download the datasheet of MPSA42 Transistor :

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