D44C3 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -30 V
• Collector-Base Voltage, max: -40 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 D44C3 is the D45C3.You can replace the D44C3 with the 2N6040, 2N6040G, 2N6106, 2N6108, 2N6109, 2N6109G, 2N6111, 2N6111G, 2N6124, 2N6125, 2N6132, 2N6133, 2N6489, 2N6489G, 2N6490, 2N6490G, 2N6666, 2N6667, 2N6667G, 2SA1012, 2SA1012O, 2SA1012Y, 2SA1259, 2SA1262, 2SA1279, 2SA1279-O, 2SA1279-Y, 2SA1289, 2SA1289-Q, 2SA1289-R, 2SA1289-S, 2SA1290, 2SA1290-Q, 2SA1290-R, 2SA1290-S, 2SA1291, 2SA1291-Q, 2SA1291-R, 2SA1291-S, 2SA1307, 2SA1307-O, 2SA1307-Y, 2SA1328, 2SA1328-O, 2SA1328-Y, 2SA1451, 2SA1451-O, 2SA1451-Y, 2SA1451A, 2SA1451A-O, 2SA1451A-Y, 2SA1469, 2SA1469-Q, 2SA1469-R, 2SA1469-S, 2SA1470, 2SA1470-Q, 2SA1470-R, 2SA1470-S, 2SA1471, 2SA1471-Q, 2SA1471-R, 2SA1471-S, 2SA1488, 2SA1742, 2SA1742-K, 2SA1742-L, 2SA1742-M, 2SA1743, 2SA1743-K, 2SA1743-L, 2SA1743-M, 2SA1744, 2SA1744-K, 2SA1744-L, 2SA1744-M, 2SA1931, 2SA489, 2SA489-O, 2SA489-R, 2SA489-Y, 2SA768, 2SA770, 2SB1019, 2SB1019-O, 2SB1019-Y, 2SB1097, 2SB1097-K, 2SB1097-L, 2SB1097-M, 2SB1134, 2SB1134-Q, 2SB1134-R, 2SB1134-S, 2SB1135, 2SB1135-Q, 2SB1135-R, 2SB1135-S, 2SB1136, 2SB1136-Q, 2SB1136-R, 2SB1136-S, 2SB1223, 2SB1224, 2SB1225, 2SB553, 2SB553-O, 2SB553-Y, 2SB565, 2SB565-B, 2SB565-C, 2SB566, 2SB566-B, 2SB566-C, 2SB566A, 2SB566A-B, 2SB566A-C, 2SB675, 2SB707, 2SB707-O, 2SB707-R, 2SB707-Y, 2SB751, 2SB751-P, 2SB751-Q, 2SB751-R, 2SB762, 2SB762-P, 2SB762-Q, 2SB762-R, 2SB824, 2SB824-Q, 2SB824-R, 2SB824-S, 2SB825, 2SB825-Q, 2SB825-R, 2SB825-S, 2SB826, 2SB826-Q, 2SB826-R, 2SB826-S, 2SB857, 2SB857-B, 2SB857-C, 2SB857-D, 2SB858, 2SB858-B, 2SB858-C, 2SB858-D, 2SB880, 2SB881, 2SB882, 2SB903, 2SB903-Q, 2SB903-R, 2SB903-S, 2SB919, 2SB919-Q, 2SB919-R, 2SB919-S, 2SB942, 2SB942-P, 2SB942-Q, 2SB942-R, 2SB947A, 2SB947A-P, 2SB947A-Q, 2SB947A-R, 2SB948A, 2SB948A-P, 2SB948A-Q, 2SB948A-R, 2SB950, 2SB950-P, 2SB950-Q, 2SB951, 2SB951-P, 2SB951-Q, 2SB953A, 2SB953A-P, 2SB953A-Q, 2SB993, 2SB993-O, 2SB993-Y, BD202, BD204, BD244, BD244A, BD302, BD304, BD534, BD534J, BD534K, BD536, BD536J, BD536K, BD540, BD540A, BD544, BD544A, BD546, BD546A, BD644, BD646, BD736, BD738, BD744, BD744A, BD796, BD798, BD808, BD896, BD896A, BD898, BD898A, BD946, BD948, BD950, BDT60, BDT62, BDT64, BDT82, BDT82F, BDT92, BDT92F, BDW24, BDW24A, BDW44, BDW45, BDW54, BDW54A, BDW64, BDW64A, BDW74, BDW74A, BDW94, BDW94A, BDX34, BDX34A, BDX54, BDX54A, D44C2, D44C5, D44C6, D44C8, D44C9, D45C2, D45C3, D45C5, D45C6, D45C8, D45C9, D45H8, KSB1097, KSB1097-O, KSB1097-R, KSB1097-Y, KSB707, KSB707-O, KSB707-R, KSB707-Y, KSE2955T, MJE2901T, MJE2955T, MJE2955TG, MJE700T, MJE701T, TIP105, TIP105G, TIP125, TIP125G, TIP135, TIP135G, TIP145T or TIP2955T.