Eight separate Darlington amplifiers in one 18-pin package each capable of supplying 500m A at up to 50V. Outputs may be paralleled to give up to 4A at 50V at 23 duty cycle & 25C. Internal diodes are provided for inductive loads. Type 2801 may be used with standard bipolar digital logic or CMOS while type 2803 has a 2k 7 base resistor to enable direct connection to TTL & 5V CMOS.