BD140-16 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1.5 A
• Collector Dissipation: 12.5 W
• DC Current Gain (h_fe): 100 to 250
• 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 BD140-16 transistor can have a current gain of 100 to 250. The gain of the BD140 will be in the range from 40 to 250, for the BD140-10 it will be in the range from 63 to 160, for the BD140-6 it will be in the range from 40 to 100.The complementary NPN transistor to the BD140-16 is the BD139-16.The BCP53 (SOT-223), BCP53-16 (SOT-223), BCX53 (SOT-89) and BCX53-16 (SOT-89) is the SMD version of the BD140-16 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD140-16 with the 2SA1021, 2SA1249, 2SA1507, 2SB1144, 2SB1167, 2SB1168, 2SB649, BD140G, BD170, BD180, BD180G, BD231, BD238, BD238G, BD380, BD380-16, BD790, BD792, KSE172, MJE172, MJE172G, MJE252, MJE254 or MJE712.