BD538 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -80 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -8 A
• Collector Dissipation: 50 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 BD538 transistor can have a current gain of 40 to 0. The gain of the BD538J will be in the range from 30 to 75, for the BD538K it will be in the range from 40 to 100.The complementary NPN transistor to the BD538 is the BD537.You can replace the BD538 with the 2N6041, 2N6041G, 2N6042, 2N6042G, 2N6668, 2N6668G, 2SA1077, 2SA1329, 2SA1329-O, 2SA1329-Y, 2SA1452, 2SA1452-O, 2SA1452-Y, 2SA1452A, 2SA1452A-O, 2SA1452A-Y, 2SB1228, 2SB886, 2SB951A, 2SB951A-P, 2SB951A-Q, BD544B, BD544C, BD546B, BD546C, BD648, BD650, BD652, BD900, BD900A, BD902, BDT62A, BDT62B, BDT62C, BDT64A, BDT64B, BDT64C, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDW46, BDW46G, BDW47, BDW47G, BDW48, BDW74B, BDW74C, BDW74D, BDW94B, BDW94C, BDW94CF, BDX34B, BDX34BG, BDX34C, BDX34CG, BDX34D, BDX54B, BDX54BG, BDX54C, BDX54CG, BDX54D, BDX54E, BDX54F, D45H11, D45H11FP, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF15031, MJF15031G, MJF6668, MJF6668G, TIP106, TIP106G, TIP107, TIP107G, TIP136, TIP136G, TIP137, TIP137G, TIP146T, TIP147T, TTA1452B or TTB1452B.