2SC108A-Y Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 70 V
• Collector-Base Voltage, max: 90 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.8 A
• Collector Dissipation: 0.8 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -65 to +175 °C
• Package: TO-39

Here is an image showing the pin diagram of this transistor.The 2SC108A-Y transistor can have a current gain of 120 to 240. The gain of the 2SC108A will be in the range from 40 to 240, for the 2SC108A-O it will be in the range from 70 to 140, for the 2SC108A-R it will be in the range from 40 to 80.Sometimes the "2S" prefix is not marked on the package - the 2SC108A-Y might only be marked "C108A-Y".You can replace the 2SC108A-Y with the 2N3019, 2N4033, 2N5321, 2N5337 or 2N5339.