Here is an image showing the pin diagram of this transistor.
Classification of hFE
The KTC2238Y transistor can have a current gain of 120 to 240. The gain of the KTC2238 will be in the range from 70 to 240, for the KTC2238O it will be in the range from 70 to 140.
Complementary PNP transistor
The complementary PNP transistor to the KTC2238Y is the KTA968Y.
Replacement and Equivalent for KTC2238Y transistor