KSA539CY Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -45 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.2 A
• Collector Dissipation: 0.4 W
• DC Current Gain (h_fe): 120 to 240
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSA539CY is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads. Suffix "C" means center collector in KSA539Y.
Here is an image showing the pin diagram of this transistor.The KSA539CY transistor can have a current gain of 120 to 240. The gain of the KSA539C will be in the range from 40 to 240, for the KSA539CO it will be in the range from 70 to 140, for the KSA539CR it will be in the range from 40 to 80.The complementary NPN transistor to the KSA539CY is the KSC815CY.The 2SA1037 (SOT-23), 2SA1037-Q (SOT-23), 2SA1483 (SOT-89), 2SA1483-Y (SOT-89), 2SA812 (SOT-23), FJX733 (SOT-323), FJX733Y (SOT-323) and KSA812 (SOT-23) is the SMD version of the KSA539CY transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSA539CY with the 2SA1020, 2SA1020Y, 2SA1283, 2SA1315, 2SA1315-Y, 2SA1317, 2SA1318, 2SA1391, 2SA1392, 2SA1450, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA1534A, 2SA1534A-R, 2SA1619A, 2SA1619A-R, 2SA1680, 2SA200, 2SA200-Y, 2SA684, 2SA684-R, 2SA720, 2SA720-R, 2SA817, 2SA817-Y, 2SA817A, 2SA817A-Y, 2SA935, 2SA935-Q, 2SA953, 2SA954, 2SA984, 2SA984K, 2SA993, 2SB1229, 2SB560, 2SB647, 2SB740, 2SB764, 2SB892, 2SB985, BC212, BC212A, BC636, KSA1281-Y, KSA708C, KSA708CY, KSA931, KSA931Y, KSP2907AC, KSP8598C, KSP8599C, KTA1274, KTA1274Y, KTA1281, KTA1281Y, KTA200, KTA200-Y, KTB764, PN3644 or PN3645.