BD242B Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -90 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -3 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 25
• 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 BD242B is the BD241B.The BDP952 (SOT-223) is the SMD version of the BD242B transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD242B with the 2N6041, 2N6041G, 2N6042, 2N6042G, 2N6126, 2N6668, 2N6668G, 2SA1010, 2SA1010K, 2SA1010L, 2SA1010M, 2SA1077, 2SA1293, 2SA1293-O, 2SA1293-Y, 2SA1308, 2SA1308-O, 2SA1308-Y, 2SA1329, 2SA1329-O, 2SA1329-Y, 2SA1388, 2SA1388-O, 2SA1388-Y, 2SA1452, 2SA1452-O, 2SA1452-Y, 2SA1452A, 2SA1452A-O, 2SA1452A-Y, 2SA1488A, 2SA1634, 2SA1634-D, 2SA1634-E, 2SA1634-F, 2SA1635, 2SA1635-D, 2SA1635-E, 2SA1635-F, 2SA1725, 2SA1725-O, 2SA1725-P, 2SA1725-Y, 2SA1726, 2SA1726-O, 2SA1726-P, 2SA1726-Y, 2SA769, 2SA771, 2SB1016, 2SB1016-O, 2SB1016-R, 2SB1016-Y, 2SB1016A, 2SB1016A-O, 2SB1016A-Y, 2SB1017, 2SB1017-O, 2SB1017-R, 2SB1017-Y, 2SB1018, 2SB1018-O, 2SB1018-Y, 2SB1018A, 2SB1018A-O, 2SB1018A-Y, 2SB1020, 2SB1020A, 2SB1024, 2SB1090, 2SB1090-K, 2SB1090-L, 2SB1090-M, 2SB1226, 2SB1227, 2SB1228, 2SB1250, 2SB1250-P, 2SB1250-Q, 2SB1251, 2SB1251-P, 2SB1251-Q, 2SB1252, 2SB1252-P, 2SB1252-Q, 2SB1367, 2SB1367-O, 2SB1367-R, 2SB1367-Y, 2SB1368, 2SB1368-O, 2SB1368-R, 2SB1368-Y, 2SB1481, 2SB1548A, 2SB1548A-P, 2SB1548A-Q, 2SB1626, 2SB1626-O, 2SB1626-P, 2SB1626-Y, 2SB595, 2SB595-O, 2SB595-R, 2SB595-Y, 2SB596, 2SB596-O, 2SB596-R, 2SB596-Y, 2SB601, 2SB601-K, 2SB601-L, 2SB601-M, 2SB633, 2SB633-C, 2SB633-D, 2SB633-E, 2SB633-F, 2SB673, 2SB674, 2SB703, 2SB703-Q, 2SB703-R, 2SB703-S, 2SB703A, 2SB703A-Q, 2SB703A-R, 2SB703A-S, 2SB708, 2SB708-O, 2SB708-R, 2SB708-Y, 2SB747, 2SB747-P, 2SB747-Q, 2SB747-R, 2SB751A, 2SB751A-P, 2SB751A-Q, 2SB751A-R, 2SB761A, 2SB761A-P, 2SB761A-Q, 2SB761A-R, 2SB762A, 2SB762A-P, 2SB762A-Q, 2SB762A-R, 2SB870, 2SB870-P, 2SB870-Q, 2SB870-R, 2SB884, 2SB885, 2SB886, 2SB941A, 2SB941A-P, 2SB941A-Q, 2SB942A, 2SB942A-P, 2SB942A-Q, 2SB942A-R, 2SB943, 2SB943-P, 2SB943-Q, 2SB944, 2SB944-P, 2SB944-Q, 2SB945, 2SB945-P, 2SB945-Q, 2SB945-R, 2SB946, 2SB946-P, 2SB946-Q, 2SB946-R, 2SB950A, 2SB950A-P, 2SB950A-Q, 2SB951A, 2SB951A-P, 2SB951A-Q, 2SB992, 2SB992-O, 2SB992-Y, 2SB995, 2SB995-O, 2SB995-R, 2SB995-Y, 2SB996, 2SB996-O, 2SB996-R, 2SB996-Y, BD242C, BD244B, BD244C, BD538, BD538J, BD538K, BD540B, BD540C, BD544B, BD544C, BD546B, BD546C, BD648, BD650, BD652, BD800, BD802, BD810, BD900, BD900A, BD902, BD938, BD938F, BD940, BD940F, BD942, BD942F, BD952, BD954, BD956, BDT60A, BDT60B, BDT60C, BDT62A, BDT62B, BDT62C, BDT64A, BDT64B, BDT64C, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDW24B, BDW24C, BDW46, BDW46G, BDW47, BDW47G, BDW48, BDW54B, BDW54C, BDW54D, BDW64B, BDW64C, BDW64D, BDW74B, BDW74C, BDW74D, BDW94B, BDW94C, BDW94CF, BDX34B, BDX34BG, BDX34C, BDX34CG, BDX34D, BDX54B, BDX54BG, BDX54C, BDX54CG, BDX54D, BDX54E, BDX54F, BDX78, D45H11, D45H11FP, KSA1010, KSA1010O, KSA1010R, KSA1010Y, KSB1017, KSB1017-O, KSB1017-R, KSB1017-Y, KSB596, KSB596-O, KSB596-R, KSB596-Y, KSB708, KSB708-O, KSB708-R, KSB708-Y, KTA1038, KTA1038-O, KTA1038-Y, KTA1049, KTA1049O, KTA1049Y, KTB1367, KTB1367O, KTB1367R, KTB1367Y, KTB1368, KTB1368O, KTB1368R, KTB1368Y, MJE15029, MJE15029G, MJE15031, MJE15031G, MJE702T, MJE703T, MJF127, MJF127G, MJF15031, MJF15031G, MJF6668, MJF6668G, NTE153, TIP106, TIP106G, TIP107, TIP107G, TIP126, TIP126G, TIP127, TIP127G, TIP136, TIP136G, TIP137, TIP137G, TIP146T, TIP147T, TTA1452B, TTB1020B or TTB1452B.