Used in audio frequency amplifier-It is used like medium power switches-AF or RF circuits-Switching loads based on high current up to 15A-Used in low slew rate devices-Circuits based on push-pull configuration-High power-based audio circuits-Circuits that operate with high current-High fidelity based audio circuits-Voltage regulator circuit-In medium power-based circuits-These power transistors are mainly used in 200W rated Stereo systems which respond from 5Hz to 100 kHz frequencies with 0.75Vrms of sensitivity.-These transistors are applicable in audio applications due to their less S/N ratio & low harmonic distortion.