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PMBTA44 from NXP,NXP Semiconductors

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PMBTA44

Manufacturer: NXP, NXP/PHILIPS

400 V, 0.3 A NPN high-voltage low VCEsat (BISS) transistor

Partnumber Manufacturer Quantity Availability
PMBTA44 NXP, NXP/PHILIPS 39000 In Stock

Description and Introduction

400 V, 0.3 A NPN high-voltage low VCEsat (BISS) transistor **Introduction to the PMBTA44 Transistor**  

The PMBTA44 is a high-voltage NPN bipolar junction transistor (BJT) designed for switching and amplification applications. With a collector-emitter voltage (VCE) rating of up to 400V and a continuous collector current (IC) of 500mA, it is well-suited for power management in circuits requiring robust performance.  

This transistor features low saturation voltage and fast switching speeds, making it efficient for use in power supplies, inverters, and motor control systems. Its high current gain (hFE) ensures reliable signal amplification in audio and RF applications. The PMBTA44 is housed in a compact SOT-23 package, offering space-saving benefits for modern PCB designs while maintaining thermal stability.  

Engineers often select the PMBTA44 for its balance of voltage tolerance, current handling, and switching efficiency. Proper heat dissipation and adherence to maximum ratings are essential to ensure long-term reliability in demanding environments.  

For detailed specifications, designers should refer to the manufacturer’s datasheet to confirm electrical characteristics, thermal resistance, and safe operating conditions. The PMBTA44 remains a dependable choice for high-voltage, low-power applications across various industries.

Application Scenarios & Design Considerations

400 V, 0.3 A NPN high-voltage low VCEsat (BISS) transistor

Alternative Part Number

  • MMBTA44 --: Same NPN high-voltage transistor (400V, 300mA) in SOT-23, direct electrical and footprint equivalent from a major second source.
  • FMMTA44 --: SOT-23 NPN 400V transistor with matching VCEO, IC and pinout, suitable drop-in replacement with different series naming.
  • KST44 --: High-voltage NPN transistor in SOT-23 with comparable 400V rating and current capability, usable as an alternative with design verification.
  • MMBTA44 --: Same NPN high-voltage transistor in SOT-23 with nearly identical voltage and current ratings, widely available and pin-compatible.
  • FMMTA44 --: Equivalent NPN 400V-class transistor in SOT-23 package, suitable drop-in replacement with similar gain and current capability.
  • KST44 --: NPN high-voltage transistor in SOT-23 offering comparable Vceo and Ic ratings, usable as an alternative with similar electrical behavior.

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