BC297 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -45 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 0.375 W
• DC Current Gain (h_fe): 75 to 260
• Transition Frequency, min: 250 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 BC297 transistor can have a current gain of 75 to 260. The gain of the BC297-6 will be in the range from 75 to 150, for the BC297-7 it will be in the range from 125 to 260.The complementary NPN transistor to the BC297 is the BC377.The 2SA1313 (SOT-23), 2SA1518 (SOT-23), 2SA1519 (SOT-23), 2SA1520 (SOT-23) and 2SA1521 (SOT-23) is the SMD version of the BC297 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.