D44C7 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -70 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -4 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 10
• 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 D44C7 is the D45C7.The NZT660 (SOT-223) is the SMD version of the D44C7 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the D44C7 with the 2N6040, 2N6040G, 2N6041, 2N6041G, 2N6042, 2N6042G, 2N6107, 2N6107G, 2N6110, 2N6125, 2N6126, 2N6133, 2N6134, 2N6475, 2N6476, 2N6490, 2N6490G, 2N6491, 2N6491G, 2N6667, 2N6667G, 2N6668, 2N6668G, 2SA1010, 2SA1010K, 2SA1010L, 2SA1010M, 2SA1077, 2SA1259, 2SA1262, 2SA1289, 2SA1289-Q, 2SA1289-R, 2SA1289-S, 2SA1290, 2SA1290-Q, 2SA1290-R, 2SA1290-S, 2SA1291, 2SA1291-Q, 2SA1291-R, 2SA1291-S, 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, 2SA1469, 2SA1469-Q, 2SA1469-R, 2SA1469-S, 2SA1470, 2SA1470-Q, 2SA1470-R, 2SA1470-S, 2SA1471, 2SA1471-Q, 2SA1471-R, 2SA1471-S, 2SA1488, 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, 2SA1742, 2SA1742-K, 2SA1742-L, 2SA1742-M, 2SA1743, 2SA1743-K, 2SA1743-L, 2SA1743-M, 2SA1744, 2SA1744-K, 2SA1744-L, 2SA1744-M, 2SA489, 2SA489-O, 2SA489-R, 2SA489-Y, 2SA768, 2SA769, 2SA770, 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, 2SB1097, 2SB1097-K, 2SB1097-L, 2SB1097-M, 2SB1223, 2SB1224, 2SB1225, 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, 2SB566A, 2SB566A-B, 2SB566A-C, 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, 2SB675, 2SB703, 2SB703-Q, 2SB703-R, 2SB703-S, 2SB703A, 2SB703A-Q, 2SB703A-R, 2SB703A-S, 2SB707, 2SB707-O, 2SB707-R, 2SB707-Y, 2SB708, 2SB708-O, 2SB708-R, 2SB708-Y, 2SB747, 2SB747-P, 2SB747-Q, 2SB747-R, 2SB751, 2SB751-P, 2SB751-Q, 2SB751-R, 2SB751A, 2SB751A-P, 2SB751A-Q, 2SB751A-R, 2SB762, 2SB762-P, 2SB762-Q, 2SB762-R, 2SB762A, 2SB762A-P, 2SB762A-Q, 2SB762A-R, 2SB858, 2SB858-B, 2SB858-C, 2SB858-D, 2SB870, 2SB870-P, 2SB870-Q, 2SB870-R, 2SB880, 2SB881, 2SB882, 2SB885, 2SB886, 2SB942, 2SB942-P, 2SB942-Q, 2SB942-R, 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, 2SB950, 2SB950-P, 2SB950-Q, 2SB950A, 2SB950A-P, 2SB950A-Q, 2SB951, 2SB951-P, 2SB951-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, BD204, BD244A, BD244B, BD244C, BD304, BD536, BD536J, BD536K, BD538, BD538J, BD538K, BD540A, BD540B, BD540C, BD544A, BD544B, BD544C, BD546A, BD546B, BD546C, BD646, BD648, BD650, BD652, BD708, BD710, BD712, BD744A, BD744B, BD744C, BD798, BD800, BD802, BD808, BD810, BD898, BD898A, BD900, BD900A, BD902, BD908, BD910, BD912, BD950, BD952, BD954, BD956, BDT42A, BDT42AF, BDT42B, BDT42BF, BDT42C, BDT42CF, BDT60, BDT60A, BDT60B, BDT60C, BDT62, BDT62A, BDT62B, BDT62C, BDT64, BDT64A, BDT64B, BDT64C, BDT82, BDT82F, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDT92, BDT92F, BDT94, BDT94F, BDT96, BDT96F, BDW24A, BDW24B, BDW24C, BDW45, BDW46, BDW46G, BDW47, BDW47G, BDW48, BDW54A, BDW54B, BDW54C, BDW54D, BDW64A, BDW64B, BDW64C, BDW64D, BDW74A, BDW74B, BDW74C, BDW74D, BDW94A, BDW94B, BDW94C, BDW94CF, BDX34A, BDX34B, BDX34BG, BDX34C, BDX34CG, BDX34D, BDX54A, BDX54B, BDX54BG, BDX54C, BDX54CG, BDX54D, BDX78, D44C10, D44C11, D44C12, D44C8, D44C9, D45C10, D45C11, D45C12, D45C7, D45C8, D45C9, D45H11, D45H11FP, D45H8, KSA1010, KSA1010O, KSA1010R, KSA1010Y, KSB1017, KSB1017-O, KSB1017-R, KSB1017-Y, KSB1097, KSB1097-O, KSB1097-R, KSB1097-Y, KSB596, KSB596-O, KSB596-R, KSB596-Y, KSB707, KSB707-O, KSB707-R, KSB707-Y, KSB708, KSB708-O, KSB708-R, KSB708-Y, KSE2955T, KTA1038, KTA1038-O, KTA1038-Y, KTA1049, KTA1049O, KTA1049Y, KTB1367, KTB1367O, KTB1367R, KTB1367Y, KTB1368, KTB1368O, KTB1368R, KTB1368Y, MJE15029, MJE15029G, MJE2901T, MJE2955T, MJE2955TG, MJE5170, MJE700T, MJE701T, MJE702T, MJE703T, MJF127, MJF127G, MJF2955, MJF2955G, MJF6668, MJF6668G, NTE153, NTE197, TIP105, TIP105G, TIP106, TIP106G, TIP107, TIP107G, TIP125, TIP125G, TIP126, TIP126G, TIP127, TIP127G, TIP135, TIP135G, TIP136, TIP136G, TIP137, TIP137G, TIP145T, TIP146T, TIP147T, TIP2955T, TIP42A, TIP42AG, TIP42B, TIP42BG, TIP42C, TIP42CF, TIP42CG, TTA1452B, TTB1020B or TTB1452B.