MPSA42 Transistor 300V 0.5A NPN TRANSISTOR CDIL MPSA42

Product Overview

The MPSA42 is a high-voltage NPN bipolar junction transistor (BJT) designed primarily for high-voltage switching and amplification tasks. Because of its ability to handle high collector-emitter voltages, it is a staple component in telephone circuitry, gas discharge display drivers, and as a driver transistor for higher-power high-voltage output stages. Housed in a compact TO-92 plastic package, it provides a reliable, space-saving solution for low-to-medium power applications that require high-voltage tolerance.

Core Specifications

• Manufacturer: CDIL (Continental Device India Limited)

• Package Type: TO-92 (Through-Hole)

• Component Type: NPN Silicon Transistor

• Collector-Emitter Voltage ($V_{CEO}$): 300V

• Collector-Base Voltage ($V_{CBO}$): 300V

• Emitter-Base Voltage ($V_{EBO}$): 6V

• Continuous Collector Current ($I_C$): 500mA

• Power Dissipation ($P_{tot}$): 625mW (at $T_A = 25^\circ C$)

• DC Current Gain ($h_{FE}$): 40 to 200 (at $I_C = 10mA, V_{CE} = 10V$)

• Transition Frequency ($f_T$): 50 MHz (Minimum)

• Marking Code: MPSA42

• Part Number: MPSA42