BC877 Overview
NPN Silicon Darlington Transistors BC 875 … BC 879 High current gain q Low collector-emitter saturation voltage q plementary types: 4 mm lead length are fixed on PCBs with a min. 10 mm × 10 mm large copper area for the collector terminal, RthJA = 125 K/W and thus Ptot max = 1 W at TA = 25 ˚C.