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MPSA44 from NXP,NXP Semiconductors

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MPSA44

Manufacturer: NXP

Leaded Small Signal Transistor General Purpose

Partnumber Manufacturer Quantity Availability
MPSA44 NXP 14 In Stock

Description and Introduction

Leaded Small Signal Transistor General Purpose # Introduction to the MPSA44 Transistor  

The **MPSA44** is a high-voltage NPN bipolar junction transistor (BJT) commonly used in amplification and switching applications. Designed to handle elevated voltage levels, it is particularly suited for circuits requiring robust performance in power supplies, display drivers, and other high-voltage systems.  

With a collector-emitter voltage (*VCE*) rating of **400V** and a collector current (*IC*) of **300mA**, the MPSA44 offers a reliable solution for medium-power applications. Its high DC current gain (*hFE*) ensures efficient signal amplification, while its compact TO-92 package makes it suitable for space-constrained designs.  

Key features of the MPSA44 include:  
- **High voltage tolerance** (up to 400V)  
- **Moderate current handling** (300mA)  
- **Low noise performance** for signal amplification  
- **Wide operating temperature range**  

Common applications include CRT display circuits, voltage regulators, and audio amplifiers. Engineers often choose the MPSA44 for its balance of cost-effectiveness and performance in high-voltage environments.  

When implementing the MPSA44, proper heat dissipation and biasing considerations are essential to maximize efficiency and longevity. Its specifications make it a versatile choice for both hobbyists and professionals working with high-voltage electronics.  

In summary, the MPSA44 is a dependable high-voltage NPN transistor that provides stability and performance in demanding electronic circuits. Its robust design and wide applicability make it a valuable component in various industrial and consumer electronics.

Application Scenarios & Design Considerations

Leaded Small Signal Transistor General Purpose

Alternative Part Number

  • 2N6517 --: High-voltage NPN transistor with similar 350V Vceo rating and comparable current gain, widely available and often used as a direct substitute for MPSA44.
  • KSP44 --: Same 400V NPN high-voltage transistor family in TO-92 package, functionally equivalent to MPSA44 with matching voltage and current specifications.
  • BF820 --: High-voltage NPN transistor from the same manufacturer with 300V rating, suitable for similar high-voltage switching and amplification applications.

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