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MPSW42 from ON,ON Semiconductor

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MPSW42

Manufacturer: ON, MOTOROLA

One Watt High Voltage Transistor

Partnumber Manufacturer Quantity Availability
MPSW42 ON, MOTOROLA 1005 In Stock

Description and Introduction

One Watt High Voltage Transistor # Introduction to the MPSW42 Transistor  

The **MPSW42** is a high-voltage, low-power PNP bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. With a collector-emitter voltage (*VCEO*) rating of **-300V**, it is well-suited for circuits requiring high-voltage handling capabilities while maintaining moderate current and power dissipation levels.  

Key features of the MPSW42 include a continuous collector current (*IC*) of **-500mA** and a power dissipation (*PD*) of **625mW**, making it suitable for low to medium-power applications. Its high DC current gain (*hFE*) ensures efficient signal amplification, while its compact TO-92 package allows for easy integration into various circuit designs.  

Common applications include voltage regulation, signal amplification, and switching in power supplies, audio circuits, and industrial control systems. Engineers often select the MPSW42 for its reliability, cost-effectiveness, and compatibility with standard circuit configurations.  

When designing with this transistor, proper heat management and adherence to maximum ratings are essential to ensure optimal performance and longevity. Datasheet specifications, including thermal resistance and safe operating area (SOA), should be carefully reviewed for robust circuit implementation.  

Overall, the MPSW42 is a versatile component that balances high-voltage tolerance with practical power handling, making it a useful choice for a range of electronic designs.

Application Scenarios & Design Considerations

One Watt High Voltage Transistor

Alternative Part Number

  • 2N3904 --: Widely available general-purpose NPN transistor in a different series, suitable for low-power switching and amplification where MPSW42 is used.
  • BC547 --: Common NPN bipolar transistor with similar small-signal switching characteristics, different naming series and easy to source.
  • 2N2222A --: Robust general-purpose NPN transistor with higher current capability, a well-known alternative in a distinct series for switching applications.

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