Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-220
Pinout of 2SB633
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SB633 transistor can have a current gain of 40 to 320. The gain of the 2SB633-C will be in the range from 40 to 80, for the 2SB633-D it will be in the range from 60 to 120, for the 2SB633-E it will be in the range from 100 to 200, for the 2SB633-F it will be in the range from 160 to 320.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SB633 might only be marked "B633".
Complementary NPN transistor
The complementary NPN transistor to the 2SB633 is the 2SD613.
SMD Version of 2SB633 transistor
The BDP954 (SOT-223) is the SMD version of the 2SB633 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.