MPSA92

The MPSA92 is a PNP Silicon Planar High Voltage Transistor manufactured by Central Technologies. It is designed for applications requiring high voltage handling capabilities, such as telephone dialler circuits. This transistor features a maximum collector-emitter voltage (VCEO) of -300V and a maximum collector-base voltage (VCBO) of -300V. The continuous collector current (IC) rating is 500mA, with a power dissipation of 680mW at 25°C ambient temperature.

Electrical characteristics include a collector-emitter saturation voltage (VCE(sat)) of -0.5V and a base-emitter saturation voltage (VBE(sat)) of -0.9V at specified currents. The static forward current transfer ratio (hFE) typically ranges from 25 to 130 depending on the operating conditions. The transition frequency (fT) is 50MHz at -10mA collector current and -20V VCE.

The MPSA92 is housed in a TO-92 compatible package, making it suitable for through-hole mounting in various electronic circuits where space efficiency and ease of handling are important. The operating and storage temperature range is from -55°C to +175°C.

This transistor is noted as 'Not Recommended for New Design' and the ZTX757 is suggested as a replacement. It is suitable for applications with moderate power amplification or switching requirements.