Here is an image showing the pin diagram of this transistor.
Classification of hFE
The KSH772-O transistor can have a current gain of 100 to 200. The gain of the KSH772 will be in the range from 60 to 400, for the KSH772-G it will be in the range from 200 to 400, for the KSH772-R it will be in the range from 60 to 120, for the KSH772-Y it will be in the range from 160 to 320.
Complementary NPN transistor
The complementary NPN transistor to the KSH772-O is the KSH882-O.
Replacement and Equivalent for KSH772-O transistor