Operating and Storage Junction Temperature Range: -65 to +175 °C
Package: TO-39
Pinout of 2SC109A-Y
Here is an image showing the pin diagram of this transistor.
Classification of hFE
The 2SC109A-Y transistor can have a current gain of 120 to 240. The gain of the 2SC109A will be in the range from 40 to 240, for the 2SC109A-O it will be in the range from 70 to 140, for the 2SC109A-R it will be in the range from 40 to 80.
Marking
Sometimes the "2S" prefix is not marked on the package - the 2SC109A-Y might only be marked "C109A-Y".
SMD Version of 2SC109A-Y transistor
The BCV71 (SOT-23) is the SMD version of the 2SC109A-Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.
Replacement and Equivalent for 2SC109A-Y transistor