2SC1061-B Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 4 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 60 to 120
• Transition Frequency, min: 5 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 2SC1061-B transistor can have a current gain of 60 to 120. The gain of the 2SC1061 will be in the range from 35 to 320, for the 2SC1061-A it will be in the range from 35 to 70, for the 2SC1061-C it will be in the range from 100 to 200, for the 2SC1061-D it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SC1061-B might only be marked "C1061-B".The complementary PNP transistor to the 2SC1061-B is the 2SA671-B.You can replace the 2SC1061-B with the 2N5293, 2N5294, 2N6290, 2N6290G, 2N6291, 2N6292, 2N6292G, 2N6293, 2N6473, 2N6487, 2N6487G, 2N6488, 2N6488G, 2SC1826, 2SC1827, 2SC1985, 2SC1986, 2SC2075, 2SC2078, 2SC2078D, 2SC2233, 2SC2334, 2SC3179, 2SC3851, 2SC3851A, 2SC4511, 2SC4512, 2SC789, 2SD1133, 2SD1133-B, 2SD1134, 2SD1134-B, 2SD1265, 2SD1265A, 2SD1267, 2SD1267A, 2SD1268, 2SD1268-R, 2SD1269, 2SD1269-R, 2SD1270, 2SD1270-R, 2SD1271, 2SD1271-R, 2SD1274, 2SD1274A, 2SD1274B, 2SD1354, 2SD1354-O, 2SD1355, 2SD1356, 2SD1406, 2SD1406-O, 2SD1407, 2SD1407A, 2SD1408, 2SD1568, 2SD1588, 2SD1761, 2SD1761-D, 2SD1762, 2SD1762D, 2SD2058, 2SD2058-O, 2SD2059, 2SD2060, 2SD234, 2SD288, 2SD313, 2SD313D, 2SD362, 2SD389, 2SD389A, 2SD476, 2SD476-B, 2SD476A, 2SD476A-B, 2SD525, 2SD526, 2SD568, 2SD568-L, 2SD569, 2SD569-L, 2SD613, 2SD613-D, 2SD743, 2SD743-R, 2SD743A, 2SD743A-R, 2SD812, 2SD812-Q, 2SD823, 2SD856, 2SD856A, 2SD857, 2SD857A, 2SD866, 2SD866-R, 2SD866A, 2SD866A-R, 2SD880, 2SD880O, BD203, BD241A, BD241B, BD241C, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD543A, BD543B, BD543C, BD545A, BD545B, BD545C, BD707, BD709, BD711, BD743A, BD743B, BD743C, BD797, BD799, BD801, BD807, BD809, BD907, BD909, BD911, BD935, BD935F, BD937, BD937F, BD939, BD939F, BD949, BD951, BD953, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDT91, BDT91F, BDT93, BDT93F, BDT95, BDT95F, BDX77, D44H11, D44H11FP, D44H8, KSC2334, KSD1406, KSD1406-O, KSD1408, KSD1588, KSD2058, KSD2058-O, KSD288, KSD362, KSD526, KSD568, KSD568-O, KSD569, KSD569-O, KSD880, KSD880-O, KTC1003, KTD1351, KTD1351O, KTD2058, KTD2058O, KTD2059, KTD2060, NTE152 or NTE196.