KSA642C Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -25 V
• Collector-Base Voltage, max: -30 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.3 A
• Collector Dissipation: 0.4 W
• DC Current Gain (h_fe): 70 to 400
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSA642C 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 KSA642.
Here is an image showing the pin diagram of this transistor.The KSA642C transistor can have a current gain of 70 to 400. The gain of the KSA642CG will be in the range from 200 to 400, for the KSA642CO it will be in the range from 70 to 140, for the KSA642CY it will be in the range from 120 to 240.You can replace the KSA642C with the 2N4954, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SB598, KSB564AC, KSB810, KSB811, MPS3638 or PN3638.