Here is an image showing the pin diagram of this transistor.
Classification of hFE
The KSB772-Y transistor can have a current gain of 160 to 320. The gain of the KSB772 will be in the range from 60 to 400, for the KSB772-G it will be in the range from 200 to 400, for the KSB772-O it will be in the range from 100 to 200, for the KSB772-R it will be in the range from 60 to 120.
Complementary NPN transistor
The complementary NPN transistor to the KSB772-Y is the KSD882-Y.
Replacement and Equivalent for KSB772-Y transistor