KTC4373O 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: 0.8 A
• Collector Dissipation: 0.5 W
• DC Current Gain (h_fe): 80 to 160
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-89

Here is an image showing the pin diagram of this transistor.The KTC4373O transistor can have a current gain of 80 to 160. The gain of the KTC4373 will be in the range from 80 to 240, for the KTC4373Y it will be in the range from 120 to 240.The KTC4373O transistor is marked as "CO".The complementary PNP transistor to the KTC4373O is the KTA1661O.You can replace the KTC4373O with the 2SC2881 or 2SC2881-O.