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