BD954 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: 40 W
• DC Current Gain (h_fe): 40
• Transition Frequency, min: 3 MHz
• 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 BD954 is the BD953.The BDP954 (SOT-223) is the SMD version of the BD954 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD954 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, BD540C, BD544C, BD546C, BD650, BD652, BD902, 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.