KSA539C 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): 40 to 240
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSA539C 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 KSA539.
Here is an image showing the pin diagram of this transistor.The KSA539C transistor can have a current gain of 40 to 240. The gain of the KSA539CO will be in the range from 70 to 140, for the KSA539CR it will be in the range from 40 to 80, for the KSA539CY it will be in the range from 120 to 240.The complementary NPN transistor to the KSA539C is the KSC815C.The 2SA1483 (SOT-89) and FJX733 (SOT-323) is the SMD version of the KSA539C transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSA539C with the BC636, KSA708C or KSA931.