Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-92MOD
Pinout of 2SA966-O
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SA966-O transistor can have a current gain of 100 to 200. The gain of the 2SA966 will be in the range from 100 to 320, for the 2SA966-Y it will be in the range from 160 to 320.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SA966-O might only be marked "A966-O".
Complementary NPN transistor
The complementary NPN transistor to the 2SA966-O is the 2SC2236-O.