KSC2690-R 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: 1.2 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 60 to 120
• Transition Frequency, min: 155 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The KSC2690-R transistor can have a current gain of 60 to 120. The gain of the KSC2690 will be in the range from 60 to 320, for the KSC2690-O it will be in the range from 100 to 200, for the KSC2690-Y it will be in the range from 160 to 320.The complementary PNP transistor to the KSC2690-R is the KSA1220-R.The FMMT625 (SOT-23) is the SMD version of the KSC2690-R transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSC2690-R with the 2SC2481, 2SC2481-R, 2SC2690, 2SC2690-R, 2SC2690A, 2SC2690A-R, 2SC3621, 2SC3621-R, 2SD669, 2SD669-B, 2SD669A, 2SD669A-B, KSC2690A or KSC2690A-R.