Operating and Storage Junction Temperature Range: -55 to +125 °C
Package: TO-126
Pinout of 2SC2270
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SC2270 transistor can have a current gain of 140 to 450. The gain of the 2SC2270-A will be in the range from 140 to 240, for the 2SC2270-B it will be in the range from 200 to 330, for the 2SC2270-C it will be in the range from 300 to 450.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SC2270 might only be marked "C2270".
SMD Version of 2SC2270 transistor
The 2SD1624 (SOT-89) is the SMD version of the 2SC2270 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.