BUY ULN2804G-S18-R https://www.utsource.net/itm/p/9775161.html

Description: The ULN2804G-S18-R is a high-voltage, high-current Darlington transistor array in a SOP-18 package. Features: 500 mA output current (single output) 50 V output voltage Outputs can be paralleled for higher current capability TTL/CMOS compatible inputs Low power dissipation High noise immunity High-voltage outputs Applications: Stepper motor drivers Relay drivers Lamp drivers High voltage, high current switching Line drivers Solenoid drivers (For reference only)