BD180 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -80 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -3 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 40 to 250
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The BD180 transistor can have a current gain of 40 to 250. The gain of the BD180-10 will be in the range from 63 to 160, for the BD180-6 it will be in the range from 40 to 60.The complementary NPN transistor to the BD180 is the BD179.The BDP952 (SOT-223) is the SMD version of the BD180 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD180 with the BD180G, BD790, BD792, MJE252 or MJE254.