KSA473Y Bipolar Transistor

• Type: PNP
• 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 2SA473Y transistor

Here is an image showing the pin diagram of this transistor.The KSA473Y transistor can have a current gain of 120 to 240. The gain of the KSA473 will be in the range from 70 to 240, for the KSA473O it will be in the range from 70 to 140.The complementary NPN transistor to the KSA473Y is the KSC1173Y.The 2SA1203 (SOT-89) and KTA1663 (SOT-89) is the SMD version of the KSA473Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSA473Y with the 2SA1012, 2SA1012Y, 2SA1262, 2SA1279, 2SA1279-Y, 2SA1288, 2SA1289, 2SA1290, 2SA1291, 2SA1305, 2SA1305-Y, 2SA1307, 2SA1307-Y, 2SA1328, 2SA1328-Y, 2SA1451, 2SA1451-Y, 2SA1451A, 2SA1451A-Y, 2SA1469, 2SA1470, 2SA1471, 2SA1488, 2SA1742, 2SA1743, 2SA1744, 2SA1869, 2SA1869Y, 2SA1931, 2SA473, 2SA473Y, 2SA489, 2SA489-Y, 2SA490, 2SA490-Y, 2SA614, 2SA614Y, 2SA768, 2SA770, 2SB1019, 2SB1019-Y, 2SB1133, 2SB1134, 2SB1135, 2SB1136, 2SB1185, 2SB1187, 2SB1274, 2SB1375, 2SB1548, 2SB1548-P, 2SB1565, 2SB1566, 2SB434, 2SB434Y, 2SB435, 2SB435-Y, 2SB507, 2SB553, 2SB553-Y, 2SB761, 2SB761-P, 2SB762, 2SB762-P, 2SB824, 2SB825, 2SB826, 2SB834, 2SB857, 2SB858, 2SB903, 2SB919, 2SB941, 2SB941-P, 2SB942, 2SB942-P, 2SB947A, 2SB948A, 2SB953A, 2SB993, 2SB993-Y, BD202, BD204, BD242, BD242A, BD244, BD244A, BD302, BD304, BD534, BD536, BD540, BD540A, BD544, BD544A, BD546, BD546A, BD736, BD738, BD796, BD798, BD808, BD934, BD934F, BD936, BD936F, BD946, BD948, BD950, BDT82, BDT82F, D44C1, D44C2, D44C3, D44C4, D44C5, D44C6, D44C7, D44C8, D44C9, D45C1, D45C2, D45C3, D45C4, D45C5, D45C6, D45C7, D45C8, D45C9, D45H8, KSA614, KSA614Y, KSB1366, KTA1036, KTA1276, KTA1276Y, KTA1658, KTA1658Y or KTB988.