2SC4935 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The 2SC4935 transistor can have a current gain of 70 to 240. The gain of the 2SC4935O will be in the range from 70 to 140, for the 2SC4935Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SC4935 might only be marked "C4935".The complementary PNP transistor to the 2SC4935 is the 2SA1869.The 2SC2873 (SOT-89) is the SMD version of the 2SC4935 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC4935 with the 2SC1061, 2SC1826, 2SC1827, 2SC1985, 2SC1986, 2SC2075, 2SC2334, 2SC2562, 2SC3179, 2SC3239, 2SC3252, 2SC3253, 2SC3254, 2SC3255, 2SC3258, 2SC3299, 2SC3308, 2SC3345, 2SC3346, 2SC3540, 2SC3709, 2SC3709A, 2SC3710, 2SC3710A, 2SC3746, 2SC3747, 2SC3748, 2SC3851, 2SC3851A, 2SC789, 2SD1061, 2SD1062, 2SD1133, 2SD1134, 2SD1266, 2SD1266A, 2SD1267, 2SD1267A, 2SD1268, 2SD1269, 2SD1270, 2SD1271, 2SD1274, 2SD1274A, 2SD1274B, 2SD1354, 2SD1355, 2SD1356, 2SD1362, 2SD1363, 2SD1406, 2SD1407, 2SD1407A, 2SD1408, 2SD1411, 2SD1411A, 2SD1412, 2SD1666, 2SD1667, 2SD1668, 2SD1669, 2SD1761, 2SD1762, 2SD1913, 2SD2059, 2SD2060, 2SD234, 2SD2374, 2SD2374A, 2SD288, 2SD313, 2SD525, 2SD526, 2SD553, 2SD613, 2SD823, 2SD856, 2SD856A, 2SD857, 2SD857A, 2SD866, 2SD866A, 2SD880, BD203, BD241A, BD241B, BD241C, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD543A, BD543B, BD543C, BD545A, BD545B, BD545C, BD797, BD799, BD801, BD807, BD809, BD935, BD935F, BD937, BD937F, BD939, BD939F, BD949, BD951, BD953, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDX77, D44H11, D44H11FP, D44H8, KSC2334, KSD1406, KSD1408, KSD2058, KSD288, KSD526, KSD880, KTC2018, KTC2027, KTC2028, KTD1351, KTD2059 or KTD2060.