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MPSA42 Specifications

Detailed technical information and Application Scenarios

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PartNumberManufactorQuantityAvailability
MPSA42NS/MOTO319Yes

# Introduction to the MPSA42 Transistor The **MPSA42** is a high-voltage NPN bipolar junction transistor (BJT) commonly used in amplification and switching applications.

# Introduction to the MPSA42 Transistor

The MPSA42 is a high-voltage NPN bipolar junction transistor (BJT) commonly used in amplification and switching applications. Designed to handle voltages up to 300V, it is well-suited for circuits requiring robust performance in high-voltage environments, such as power supplies, telecommunication systems, and industrial control circuits.

With a continuous collector current (Ic) rating of 500mA, the MPSA42 provides sufficient current handling for low to medium-power applications. Its high DC current gain (hFE), typically ranging from 25 to 40, ensures effective signal amplification when properly biased. Additionally, the transistor features a low saturation voltage, enhancing efficiency in switching operations.

The MPSA42 is housed in a TO-92 package, making it compact and easy to integrate into various circuit designs. Its complementary PNP counterpart, the MPSA92, is often used in push-pull amplifier configurations for balanced performance.

Key applications include:

  • High-voltage amplification in audio and RF circuits
  • Switching loads in relay drivers and LED controllers
  • Signal processing in communication devices

When designing with the MPSA42, proper heat dissipation and biasing considerations are essential to ensure reliability, especially in high-voltage scenarios. Its robust construction and dependable performance make it a preferred choice for engineers working with demanding electronic systems.

For detailed specifications, always refer to the manufacturer’s datasheet to ensure optimal circuit performance.

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