KSC5019-N Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 30 V
• Collector-Base Voltage, max: 30 V
• Emitter-Base Voltage, max: 10 V
• Collector Current − Continuous, max: 2 A
• Collector Dissipation: 0.75 W
• DC Current Gain (h_fe): 300 to 450
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSC5019-N is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.The KSC5019-N transistor can have a current gain of 300 to 450. The gain of the KSC5019 will be in the range from 140 to 600, for the KSC5019-L it will be in the range from 140 to 240, for the KSC5019-M it will be in the range from 200 to 330, for the KSC5019-P it will be in the range from 420 to 600.The 2STR1230 (SOT-23) is the SMD version of the KSC5019-N transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSC5019-N with the 2SC2500, 2SC2500-A, 2SC2500-B, 2SC2500-C, 2SC2500-D, 2SD1207, 2SD1207-U, 2SD1347, 2SD1347U, 2SD1835, 2SD1835-U, KSC2500, KSC2500-A, KSC2500-B, KSC2500-C or KSC2500-D.