Here is an image showing the pin diagram of this transistor.
Classification of hFE
The KTC2238O transistor can have a current gain of 70 to 140. The gain of the KTC2238 will be in the range from 70 to 240, for the KTC2238Y it will be in the range from 120 to 240.
Complementary PNP transistor
The complementary PNP transistor to the KTC2238O is the KTA968O.
Replacement and Equivalent for KTC2238O transistor