BC298 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -25 V
• Collector-Base Voltage, max: -30 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 BC298 transistor can have a current gain of 75 to 260. The gain of the BC298-6 will be in the range from 75 to 150, for the BC298-7 it will be in the range from 125 to 260.The complementary NPN transistor to the BC298 is the BC378.The 2SA1182 (SOT-23), 2SA1588 (SOT-323), FJX1182 (SOT-323), KSA1182 (SOT-23), KTA1505 (SOT-23) and KTA1505S (SOT-23) is the SMD version of the BC298 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BC298 with the BC297.