BUY ULN2803AFWG https://www.utsource.net/itm/p/1126428.html
Darlington Transistor Array
Description: The ULN2803AFWG is an 8-channel Darlington transistor array. Features: 500 mA output current (single output) 50 V output voltage High-voltage and high-current Darlington transistor array Outputs can be paralleled for higher current capability TTL/CMOS compatible inputs High-noise immunity Low power dissipation High-speed switching Applications: Stepper motor control Relay driver Lamp driver LED driver Line driver Solenoid driver High-current switching (For reference only)