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PMBTA42 from NXP/PHILIPS,NXP Semiconductors

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PMBTA42

Manufacturer: NXP/PHILIPS

300 V, 100 mA NPN high-voltage transistor

Partnumber Manufacturer Quantity Availability
PMBTA42 NXP/PHILIPS 3000 In Stock

Description and Introduction

300 V, 100 mA NPN high-voltage transistor **Introduction to the PMBTA42 Transistor**  

The PMBTA42 is a high-voltage, NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. With a collector-emitter voltage (VCEO) rating of 300V and a continuous collector current (IC) of 500mA, it is well-suited for use in power supplies, inverters, and electronic control circuits.  

Featuring a low saturation voltage and high current gain, the PMBTA42 ensures efficient performance in both linear and switching modes. Its compact SOT-23 surface-mount package makes it ideal for space-constrained designs while maintaining reliable thermal and electrical characteristics.  

Key specifications include a power dissipation of 350mW and an operating temperature range of -55°C to +150°C, ensuring stability across various environmental conditions. The transistor is also RoHS-compliant, meeting modern environmental standards.  

Engineers often select the PMBTA42 for its balance of voltage tolerance, current handling, and compact form factor. Whether used in signal amplification or as a switch in low-power circuits, this transistor provides a dependable solution for diverse electronic applications.  

For detailed performance parameters, always refer to the manufacturer’s datasheet to ensure proper circuit integration.

Application Scenarios & Design Considerations

300 V, 100 mA NPN high-voltage transistor

Alternative Part Number

  • MMBTA42 --: Same 300V NPN high-voltage transistor in SOT-23 with nearly identical electrical specs, widely available and pin-compatible.
  • FMMT458 --: 300V NPN transistor in SOT-23 offering comparable voltage and current ratings, suitable as a direct functional replacement.
  • 2N5551 --: High-voltage NPN transistor (160V) commonly used in similar applications; check voltage margin, but a well-known alternative in TO-92 or SOT-23 variants.

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