The PZTA92-QX is an NPN transistor manufactured by Nexperia. It is a surface-mount device (SMD) packaged in a SOT223 (SC-73) package. The PZTA92-QX is a wide-band and high-speed transistor and is designed for use in audio amplifier and switching applications. It has a maximum collector emitter voltage of 80V, a maximum collector current of 200mA, a maximum power dissipation of 500mW, and a gain bandwidth product of 150MHz. It has a collector-base voltage of 80V, an emitter-base voltage of 5V, and a total power dissipation of 500mW. This transistor has a wide range of features, including a high frequency response, a low collect to emitter saturation voltage, and good gain linearity. It is a versatile component suitable for a variety of applications.