KTA1040D Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -3 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 100 to 300
• Transition Frequency, min: 30 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-252

Here is an image showing the pin diagram of this transistor.The KTA1040D transistor can have a current gain of 100 to 300. The gain of the KTA1040D-GR will be in the range from 150 to 300, for the KTA1040D-Y it will be in the range from 100 to 200.The BDP950 (SOT-223) is the SMD version of the KTA1040D transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KTA1040D with the KTA1046.