KSA539Y 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
• Electrically Similar to the Popular 2SA539Y transistor

The KSA539Y 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 KSA539CY transistor (with suffix "C") is the center collector version of the KSA539Y.
Here is an image showing the pin diagram of this transistor.The KSA539Y transistor can have a current gain of 120 to 240. The gain of the KSA539 will be in the range from 40 to 240, for the KSA539O it will be in the range from 70 to 140, for the KSA539R it will be in the range from 40 to 80.The complementary NPN transistor to the KSA539Y is the KSC815Y.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 KSA539Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The 2SA539Y is the TO-92 version of the KSA539Y.You can replace the KSA539Y with the 2SA539, 2SA539Y, 2SA697, 2SA708, 2SA708Y, BC527, BC527-16, BC528, BC528-16, BCX79, KN2907A, KSA708, KSA708Y, KSP2907A, KSP55, KSP56, KSP8598, KSP8599, KTA539, KTA539-O, KTA539-Y, KTN2907A, MPS2907A, MPS2907AG, MPS4354, MPS4355, MPS4356, MPS751, MPS751G, MPS8598, MPS8598G, MPS8599, MPS8599G, MPSA55, MPSA55G, MPSA56, MPSA56G, MPSW55, MPSW55G, MPSW56, MPSW56G, NTE159, P2N2907A, P2N2907AG, PN200, PN2905A, PN2907A, PN4354, PN4355, PN4356, ZTX550 or ZTX951.