2SC1573-Q Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 200 V
• Collector-Base Voltage, max: 250 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 2SC1573-Q transistor can have a current gain of 60 to 150. The gain of the 2SC1573 will be in the range from 60 to 220, for the 2SC1573-R it will be in the range from 100 to 220.Sometimes the "2S" prefix is not marked on the package - the 2SC1573-Q might only be marked "C1573-Q".The complementary PNP transistor to the 2SC1573-Q is the 2SA879-Q.The BF622 (SOT-89) and BF822 (SOT-23) is the SMD version of the 2SC1573-Q transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC1573-Q with the 2N6517C, 2SC1473, 2SC1473A, 2SC1473AQ, 2SC1473Q, 2SC1573A, 2SC1573A-Q, 2SC1573B, 2SC1573B-Q, 2SC2271, 2SC2482, 2SC2551, 2SC2551-O, 2SC3467, 2SC3468, 2SC3941, 2SC3941-Q, KSC1506 or KSC2330.