KST5401 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -150 V
• Collector-Base Voltage, max: -160 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.5 A
• Collector Dissipation: 0.35 W
• DC Current Gain (h_fe): 60 to 240
• Transition Frequency, min: 100 MHz
• Noise Figure, max: 8 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23
• Electrically Similar to the Popular 2N5401 transistor

Here is an image showing the pin diagram of this transistor.The KST5401 transistor is marked as "2L".The complementary NPN transistor to the KST5401 is the KST5551.The 2N5401 is the TO-92 version of the KST5401.You can replace the KST5401 with the 2N5401S, KST92, KST93, MMBT5401 or MMBTA92.