Operating and Storage Junction Temperature Range: -55 to +150 °C
Package: TO-251
Pinout of 2SB1203-R
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SB1203-R transistor can have a current gain of 100 to 200. The gain of the 2SB1203 will be in the range from 70 to 400, for the 2SB1203-Q it will be in the range from 70 to 120, for the 2SB1203-S it will be in the range from 140 to 280, for the 2SB1203-T it will be in the range from 200 to 400.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SB1203-R might only be marked "B1203-R".
Complementary NPN transistor
The complementary NPN transistor to the 2SB1203-R is the 2SD1803-R.
SMD Version of 2SB1203-R transistor
The 2SB1124 (SOT-89), 2SB1124-R (SOT-89) and BDP950 (SOT-223) is the SMD version of the 2SB1203-R transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
Replacement and Equivalent for 2SB1203-R transistor