2SD235-Y Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 3 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 2SD235-Y transistor can have a current gain of 120 to 240. The gain of the 2SD235 will be in the range from 40 to 240, for the 2SD235-O it will be in the range from 70 to 140, for the 2SD235-R it will be in the range from 40 to 80.Sometimes the "2S" prefix is not marked on the package - the 2SD235-Y might only be marked "D235-Y".The complementary PNP transistor to the 2SD235-Y is the 2SB435-Y.The 2SC2873 (SOT-89), 2SC2873-Y (SOT-89), 2SD1623 (SOT-89), 2SD1624 (SOT-89) and FMMT619 (SOT-23) is the SMD version of the 2SD235-Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD235-Y with the 2SC1061, 2SC1826, 2SC1827, 2SC1985, 2SC1986, 2SC2075, 2SC2562, 2SC2562Y, 2SC3179, 2SC3239, 2SC3239-Y, 2SC3252, 2SC3253, 2SC3254, 2SC3255, 2SC3258, 2SC3258-Y, 2SC3299, 2SC3299-Y, 2SC3308, 2SC3308-Y, 2SC3345, 2SC3345-Y, 2SC3346, 2SC3346-Y, 2SC3540, 2SC3540-Y, 2SC3709, 2SC3709-Y, 2SC3709A, 2SC3709A-Y, 2SC3710, 2SC3710-Y, 2SC3710A, 2SC3710A-Y, 2SC3746, 2SC3747, 2SC3748, 2SC3851, 2SC3851A, 2SC4007, 2SC4008, 2SC4550, 2SC4551, 2SC4552, 2SC4881, 2SC4935, 2SC4935Y, 2SC789, 2SC789-Y, 2SC790, 2SC790-Y, 2SD1060, 2SD1061, 2SD1062, 2SD1133, 2SD1134, 2SD1266, 2SD1266-P, 2SD1266A, 2SD1266A-P, 2SD1267, 2SD1267-P, 2SD1267A, 2SD1267A-P, 2SD1268, 2SD1269, 2SD1270, 2SD1271, 2SD1274, 2SD1274A, 2SD1274B, 2SD1354, 2SD1356, 2SD1356-Y, 2SD1362, 2SD1362-Y, 2SD1363, 2SD1363-Y, 2SD1406, 2SD1408, 2SD1408-Y, 2SD1411, 2SD1411-Y, 2SD1411A, 2SD1411A-Y, 2SD1412, 2SD1412-Y, 2SD1444A, 2SD1445A, 2SD1666, 2SD1667, 2SD1668, 2SD1669, 2SD1761, 2SD1762, 2SD1913, 2SD2012, 2SD2060, 2SD2060-Y, 2SD2061, 2SD234, 2SD234Y, 2SD2374, 2SD2374-P, 2SD2374A, 2SD2374A-P, 2SD2394, 2SD2395, 2SD288, 2SD288-Y, 2SD313, 2SD526, 2SD526-Y, 2SD553, 2SD553-Y, 2SD795, 2SD856, 2SD856-P, 2SD856A, 2SD856A-P, 2SD857, 2SD857-P, 2SD857A, 2SD857A-P, 2SD866, 2SD880, BD201, BD203, BD241, BD241A, BD241B, BD243, BD243A, BD243B, BD301, BD303, BD533, BD535, BD537, BD539, BD539A, BD539B, BD543, BD543A, BD543B, BD545, BD545A, BD545B, BD737, BD795, BD797, BD799, BD807, BD809, BD933, BD933F, BD935, BD935F, BD937, BD937F, BD947, BD949, BD951, BDT81, BDT81F, BDT83, BDT83F, BDX77, D44H11, D44H11FP, D44H8, KSD1406, KSD1408, KSD1408-Y, KSD2012, KSD2058, KSD288, KSD288-Y, KSD526, KSD526-Y, KSD880, KTC2016, KTC2026, KTC2027, KTC2027-Y, KTD1351, KTD2060, KTD2060Y or TTC3710B.