BD878 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -80 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 9 W
• DC Current Gain (h_fe): 2000
• Transition Frequency, min: 200 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 complementary NPN transistor to the BD878 is the BD877.You can replace the BD878 with the 2SB1067, 2SB1149, 2SB1149-K, 2SB1149-L, 2SB1149-M, 2SB794, 2SB794-K, 2SB794-L, 2SB794-M, 2SB795, 2SB795-K, 2SB795-L, 2SB795-M, BD880, KSB1149, KSB1149-G, KSB1149-O, KSB1149-Y, KSB794, KSB794-O, KSB794-R, KSB794-Y, KSB795, KSB795-O, KSB795-R or KSB795-Y.