KTC2803-Y 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): 100 to 200
• Transition Frequency, min: 110 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 KTC2803-Y transistor can have a current gain of 100 to 200. The gain of the KTC2803 will be in the range from 100 to 320, for the KTC2803-GR it will be in the range from 160 to 320.The complementary PNP transistor to the KTC2803-Y is the KTA1704-Y.The 2SC2881 (SOT-89), FMMT624 (SOT-23), FMMT625 (SOT-23) and KTC4373 (SOT-89) is the SMD version of the KTC2803-Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KTC2803-Y with the 2SC2481, 2SC2481-O, 2SC2690, 2SC2690-Q, 2SC2690A, 2SC2690A-Q, 2SC3117, 2SC3117-R, 2SC3621, 2SC3621-O, 2SC3902, 2SC3902-R, 2SD669, 2SD669-C, 2SD669A, 2SD669A-C, KSC2690, KSC2690-O, KSC2690A, KSC2690A-O or KTC2800.