2SC790-O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 70 to 140
• Transition Frequency, min: 10 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 2SC790-O transistor can have a current gain of 70 to 140. The gain of the 2SC790 will be in the range from 40 to 240, for the 2SC790-R it will be in the range from 40 to 80, for the 2SC790-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SC790-O might only be marked "C790-O".The complementary PNP transistor to the 2SC790-O is the 2SA490-O.The 2SC2873 (SOT-89) and 2SC2873-O (SOT-89) is the SMD version of the 2SC790-O transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC790-O with the 2N6290, 2N6290G, 2N6291, 2N6292, 2N6292G, 2N6293, 2N6486, 2N6486G, 2N6487, 2N6487G, 2N6488, 2N6488G, 2SC1061, 2SC1826, 2SC1827, 2SC1985, 2SC1986, 2SC2075, 2SC2078, 2SC2233, 2SC2562, 2SC2562O, 2SC3179, 2SC3239, 2SC3239-O, 2SC3252, 2SC3252-Q, 2SC3253, 2SC3253-Q, 2SC3254, 2SC3254-Q, 2SC3255, 2SC3255-Q, 2SC3258, 2SC3258-O, 2SC3299, 2SC3299-O, 2SC3308, 2SC3308-O, 2SC3345, 2SC3345-O, 2SC3346, 2SC3346-O, 2SC3540, 2SC3540-O, 2SC3709, 2SC3709-O, 2SC3709A, 2SC3709A-O, 2SC3710, 2SC3710-O, 2SC3710A, 2SC3710A-O, 2SC3746, 2SC3746-Q, 2SC3747, 2SC3747-Q, 2SC3748, 2SC3748-Q, 2SC3851, 2SC3851A, 2SC4511, 2SC4511-P, 2SC4512, 2SC4512-P, 2SC4935, 2SC4935O, 2SC789, 2SC789-O, 2SD1060-Q, 2SD1061, 2SD1061-Q, 2SD1062, 2SD1062-Q, 2SD1133, 2SD1134, 2SD1265, 2SD1265A, 2SD1266, 2SD1266-Q, 2SD1266A, 2SD1266A-Q, 2SD1267, 2SD1267-Q, 2SD1267A, 2SD1267A-Q, 2SD1268, 2SD1269, 2SD1270, 2SD1271, 2SD1274, 2SD1274A, 2SD1274B, 2SD1354, 2SD1356, 2SD1356-O, 2SD1362, 2SD1362-O, 2SD1363, 2SD1363-O, 2SD1406, 2SD1408, 2SD1408-O, 2SD1411, 2SD1411-O, 2SD1411A, 2SD1411A-O, 2SD1412, 2SD1412-O, 2SD1444A, 2SD1568, 2SD1588, 2SD1666, 2SD1666-Q, 2SD1667, 2SD1667-Q, 2SD1668, 2SD1668-Q, 2SD1669, 2SD1669-Q, 2SD1761, 2SD1762, 2SD1913, 2SD2058, 2SD2060, 2SD2060-O, 2SD234, 2SD234O, 2SD235, 2SD235-O, 2SD2374, 2SD2374-Q, 2SD2374A, 2SD2374A-Q, 2SD288, 2SD288-O, 2SD313, 2SD362, 2SD362-O, 2SD389, 2SD389A, 2SD476, 2SD476A, 2SD526, 2SD526-O, 2SD553, 2SD553-O, 2SD568, 2SD569, 2SD743, 2SD795, 2SD812, 2SD856, 2SD856-Q, 2SD856A, 2SD856A-Q, 2SD857, 2SD857-Q, 2SD857A, 2SD857A-Q, 2SD866, 2SD880, BD201, BD203, BD241, BD241A, BD241B, BD243, BD243A, BD243B, BD301, BD303, BD533, BD535, BD537, BD539, BD539A, BD539B, BD543, BD543A, BD543B, BD545, BD545A, BD545B, BD705, BD707, BD709, BD737, BD743, BD743A, BD743B, BD795, BD797, BD799, BD807, BD809, BD905, BD907, BD909, BD933, BD933F, BD935, BD935F, BD937, BD937F, BD949, BD951, BDT81, BDT81F, BDT83, BDT83F, BDT91, BDT91F, BDT93, BDT93F, BDX77, D44H11, D44H11FP, D44H8, KSD1406, KSD1408, KSD1408-O, KSD1588, KSD2058, KSD288, KSD288-O, KSD362, KSD362-O, KSD526, KSD526-O, KSD568, KSD569, KSD880, KTC1003, KTC2027, KTC2027-O, KTD1351, KTD2058, KTD2060, KTD2060O or NTE196.