ULN2803 8-Channel Darlington Transistor Array

Eight high-current switches, each sinking up to 500 mA, for driving relays, solenoids, stepper motors and LED arrays from logic pins. The eight-channel count matches a full byte, which makes it a natural pairing with a 74595 shift register or an 8-bit port. Internal flyback diodes handle inductive spikes so no external diodes are needed. Eight channels match a full byte or shift register output; Internal flyback diodes for inductive loads; 500 mA per channel from a logic-level input; Pairs naturally with a 74595 shift register