BD546A Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -15 A
• Collector Dissipation: 85 W
• DC Current Gain (h_fe): 60
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the BD546A is the BD545A.You can replace the BD546A with the 2SA1744, 2SA1744-K, 2SA1744-L, 2SA1744-M, BD546B, BD546C, BDW45, BDW46, BDW46G, BDW47, BDW47G, BDW48, MJF6668 or MJF6668G.