KSA1381 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -300 V
• Collector-Base Voltage, max: -300 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.1 A
• Collector Dissipation: 7 W
• DC Current Gain (h_fe): 40 to 320
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The KSA1381 transistor can have a current gain of 40 to 320. The gain of the KSA1381-C will be in the range from 40 to 80, for the KSA1381-D it will be in the range from 60 to 120, for the KSA1381-E it will be in the range from 100 to 200, for the KSA1381-F it will be in the range from 160 to 320.The complementary NPN transistor to the KSA1381 is the KSC3503.The PMBTA92 (SOT-23) is the SMD version of the KSA1381 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSA1381 with the 2SA1353, 2SA1381, 2SA1479 or 2SA1480.