BC377-7 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 45 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 1.2 A
• Collector Dissipation: 0.375 W
• DC Current Gain (h_fe): 125 to 260
• Transition Frequency, min: 300 MHz
• Operating and Storage Junction Temperature Range: -65 to +175 °C
• Package: TO-18

Here is an image showing the pin diagram of this transistor.The BC377-7 transistor can have a current gain of 125 to 260. The gain of the BC377 will be in the range from 75 to 260, for the BC377-6 it will be in the range from 75 to 150.The complementary PNP transistor to the BC377-7 is the BC297-7.The 2SD1622 (SOT-89), 2SD874A (SOT-89) and 2SD874A-R (SOT-89) is the SMD version of the BC377-7 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.