KSC1845U Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 120 V
• Collector-Base Voltage, max: 120 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.05 A
• Collector Dissipation: 0.5 W
• DC Current Gain (h_fe): 600 to 1200
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSC1845U 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 KSC1845U transistor can have a current gain of 600 to 1200. The gain of the KSC1845 will be in the range from 200 to 1200, for the KSC1845E it will be in the range from 400 to 800, for the KSC1845F it will be in the range from 300 to 600, for the KSC1845P it will be in the range from 200 to 400.The FJV1845 (SOT-23) and FJV1845-U (SOT-23) is the SMD version of the KSC1845U transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSC1845U with the 2SC1775A, 2SC1775A-F, 2SC1841, 2SC1841U, 2SC1845, 2SC1845U, 2SC1890A, 2SC1890A-F, 2SC2544, 2SC2784 or 2SC2784-U.