This document presents the absolute maximum ratings and electrical characteristics of the KSP55/56 PNP Epitaxial Silicon Transistors produced by Fairchild Semiconductor Corporation. It includes the maximum voltage, current, power dissipation, temperature ratings of the device, as well as the breakdown voltage of collector-emitter, breakdown voltage of emitter-base, collector cut-off current, collector-emitter saturation voltage, base-emitter on voltage, current gain bandwidth, and other electrical characteristics.