D44C11 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: -4 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 20
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the D44C11 is the D45C11.The BDP952 (SOT-223) is the SMD version of the D44C11 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the D44C11 with the 2N6041, 2N6041G, 2N6042, 2N6042G, 2N6126, 2N6134, 2N6491, 2N6491G, 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, 2SB1227, 2SB1228, 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, 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, 2SB762A, 2SB762A-P, 2SB762A-Q, 2SB762A-R, 2SB870, 2SB870-P, 2SB870-Q, 2SB870-R, 2SB885, 2SB886, 2SB942A, 2SB942A-P, 2SB942A-Q, 2SB942A-R, 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, BD244B, BD244C, BD538, BD538J, BD538K, BD540B, BD540C, BD544B, BD544C, BD546B, BD546C, BD648, BD650, BD652, BD744B, BD744C, BD800, BD802, BD810, BD900, BD900A, BD902, BD952, BD954, BD956, BDT60A, BDT60B, BDT60C, BDT62A, BDT62B, BDT62C, BDT64A, BDT64B, BDT64C, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDT94, BDT94F, BDT96, BDT96F, 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, D44C12, D45C11, D45C12, 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, MJF2955, MJF2955G, MJF6668, MJF6668G, NTE153, TIP106, TIP106G, TIP107, TIP107G, TIP126, TIP126G, TIP127, TIP127G, TIP136, TIP136G, TIP137, TIP137G, TIP146T, TIP147T, TTA1452B, TTB1020B or TTB1452B.