2SC1573B-Q Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 400 V
• Collector-Base Voltage, max: 400 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.07 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 60 to 150
• Transition Frequency, min: 80 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The 2SC1573B-Q transistor can have a current gain of 60 to 150. The gain of the 2SC1573B will be in the range from 30 to 220, for the 2SC1573B-P it will be in the range from 30 to 100, for the 2SC1573B-R it will be in the range from 100 to 220.Sometimes the "2S" prefix is not marked on the package - the 2SC1573B-Q might only be marked "C1573B-Q".You can replace the 2SC1573B-Q with the 2N6517C.