KSC1173Y Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 30 V
• Collector-Base Voltage, max: 30 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220
• Electrically Similar to the Popular 2SC1173Y transistor

Here is an image showing the pin diagram of this transistor.The KSC1173Y transistor can have a current gain of 120 to 240. The gain of the KSC1173 will be in the range from 70 to 240, for the KSC1173O it will be in the range from 70 to 140.The complementary PNP transistor to the KSC1173Y is the KSA473Y.The KTC4375 (SOT-89) is the SMD version of the KSC1173Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSC1173Y with the 2SC1061, 2SC1173, 2SC1173Y, 2SC1826, 2SC1985, 2SC2562, 2SC2562Y, 2SC3179, 2SC3239, 2SC3239-Y, 2SC3252, 2SC3253, 2SC3254, 2SC3255, 2SC3297, 2SC3297-Y, 2SC3299, 2SC3299-Y, 2SC3345, 2SC3345-Y, 2SC3709, 2SC3709-Y, 2SC3709A, 2SC3709A-Y, 2SC3746, 2SC3747, 2SC3748, 2SC3851, 2SC4550, 2SC4551, 2SC4552, 2SC4881, 2SC4935, 2SC4935Y, 2SC790, 2SC790-Y, 2SD1060, 2SD1061, 2SD1062, 2SD1133, 2SD1134, 2SD1212, 2SD1235, 2SD1266, 2SD1266-P, 2SD1267, 2SD1267-P, 2SD1354, 2SD1363, 2SD1363-Y, 2SD1406, 2SD1412, 2SD1412-Y, 2SD1444A, 2SD1445A, 2SD1666, 2SD1667, 2SD1668, 2SD1669, 2SD1761, 2SD1762, 2SD1913, 2SD2012, 2SD2061, 2SD234, 2SD234Y, 2SD235, 2SD235-Y, 2SD2374, 2SD2374-P, 2SD2394, 2SD2395, 2SD288, 2SD288-Y, 2SD313, 2SD553, 2SD553-Y, 2SD795, 2SD856, 2SD856-P, 2SD857, 2SD857-P, 2SD880, BD201, BD203, BD241, BD241A, BD243, BD243A, BD301, BD303, BD533, BD535, BD539, BD539A, BD543, BD543A, BD545, BD545A, BD735, BD737, BD795, BD797, BD807, BD933, BD933F, BD935, BD935F, BD945, BD947, BD949, BDT81, BDT81F, D44H8, KSD1406, KSD2012, KSD2058, KSD288, KSD288-Y, KSD880, KTC2016, KTC2026, KTC3230, KTC3230Y, KTC4369, KTC4369Y or KTD1351.