KSA539O 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): 70 to 140
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92
• Electrically Similar to the Popular 2SA539O transistor

The KSA539O 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, base, and collector leads. The KSA539CO transistor (with suffix "C") is the center collector version of the KSA539O.
Here is an image showing the pin diagram of this transistor.The KSA539O transistor can have a current gain of 70 to 140. The gain of the KSA539 will be in the range from 40 to 240, for the KSA539R it will be in the range from 40 to 80, for the KSA539Y it will be in the range from 120 to 240.The complementary NPN transistor to the KSA539O is the KSC815O.The 2SA1483 (SOT-89), 2SA1483-O (SOT-89), FJX733 (SOT-323) and FJX733O (SOT-323) is the SMD version of the KSA539O transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The 2SA539O is the TO-92 version of the KSA539O.You can replace the KSA539O with the 2SA539, 2SA539O, 2SA697, 2SA708, 2SA708O, BC527, BC527-10, BC528, BC528-10, KSA708, KSA708O, KSP55, KSP56, KTA539, KTA539-O, KTA539-Y, MPS4354, MPS4356, MPSW55, MPSW55G, MPSW56, MPSW56G, NTE159, PN4354, PN4356, ZTX551 or ZTX552.