Here is an image showing the pin diagram of this transistor.
Classification of hFE
The KTC5242AR transistor can have a current gain of 55 to 100. The gain of the KTC5242A will be in the range from 55 to 160, for the KTC5242AO it will be in the range from 80 to 160.
Complementary PNP transistor
The complementary PNP transistor to the KTC5242AR is the KTA1962AR.
Replacement and Equivalent for KTC5242AR transistor