KSC3074-O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 5 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 70 to 140
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-251

Here is an image showing the pin diagram of this transistor.The KSC3074-O transistor can have a current gain of 70 to 140. The gain of the KSC3074 will be in the range from 70 to 240, for the KSC3074-Y it will be in the range from 120 to 240.The complementary PNP transistor to the KSC3074-O is the KSA1244-O.You can replace the KSC3074-O with the 2SD1803, 2SD1804, KTC2022L or KTC2022L-Y.