BUY D45H11 https://www.utsource.net/itm/p/11526714.html

Description: NPN Darlington Transistor Features: High DC Current Gain Low Saturation Voltage High DC Voltage Gain High Input Impedance High Output Impedance Low Noise High Reliability Applications: Audio Amplifiers Motor Control Switching Applications High Voltage Switching Applications High Current Switching Applications High Frequency Switching Applications (For reference only)