Here is an image showing the pin diagram of this transistor.
Classification of hFE
The KSD568-O transistor can have a current gain of 60 to 120. The gain of the KSD568 will be in the range from 40 to 200, for the KSD568-R it will be in the range from 40 to 80, for the KSD568-Y it will be in the range from 100 to 200.
Complementary PNP transistor
The complementary PNP transistor to the KSD568-O is the KSB707-O.
Replacement and Equivalent for KSD568-O transistor