BD540C Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -100 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -5 A
• Collector Dissipation: 45 W
• DC Current Gain (h_fe): 40
• 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 BD540C is the BD539C.The BDP954 (SOT-223) is the SMD version of the BD540C transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD540C with the 2N6042, 2N6042G, 2SA1010, 2SA1010K, 2SA1010L, 2SA1010M, 2SA1077, 2SB1016, 2SB1016-O, 2SB1016-R, 2SB1016-Y, 2SB1016A, 2SB1016A-O, 2SB1016A-Y, 2SB1020, 2SB1020A, 2SB1227, 2SB1228, 2SB1252, 2SB1252-P, 2SB1252-Q, 2SB1367, 2SB1367-O, 2SB1367-R, 2SB1367-Y, 2SB1626, 2SB1626-O, 2SB1626-P, 2SB1626-Y, 2SB595, 2SB595-O, 2SB595-R, 2SB595-Y, 2SB601, 2SB601-K, 2SB601-L, 2SB601-M, 2SB673, 2SB885, 2SB886, 2SB995, 2SB995-O, 2SB995-R, 2SB995-Y, BD544C, BD546C, BD650, BD652, BD902, BD954, BD956, BDT62B, BDT62C, BDT64B, BDT64C, BDT86, BDT86F, BDT88, BDT88F, BDW24C, BDW47, BDW47G, BDW48, BDW64C, BDW64D, BDW74C, BDW74D, BDW94C, BDW94CF, BDX34C, BDX34CG, BDX34D, BDX54C, BDX54CG, BDX54D, BDX54E, BDX54F, KSA1010, KSA1010O, KSA1010R, KSA1010Y, KTA1038, KTA1038-O, KTA1038-Y, KTA1049, KTA1049O, KTA1049Y, KTB1367, KTB1367O, KTB1367R, KTB1367Y, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF127, MJF127G, MJF15031, MJF15031G, MJF6668, MJF6668G, TIP107, TIP107G, TIP127, TIP127G, TIP137, TIP137G, TIP147T or TTB1020B.