KTA1660O Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -150 V
• Collector-Base Voltage, max: -150 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.05 A
• Collector Dissipation: 0.5 W
• DC Current Gain (h_fe): 70 to 140
• 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 KTA1660O transistor can have a current gain of 70 to 140. The gain of the KTA1660 will be in the range from 70 to 240, for the KTA1660Y it will be in the range from 120 to 240.The KTA1660O transistor is marked as "BO".The complementary NPN transistor to the KTA1660O is the KTC4372O.You can replace the KTA1660O with the BF621, BF623, BST15 or DXT5401.