KST14 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 30 V
• Collector-Base Voltage, max: 30 V
• Emitter-Base Voltage, max: 10 V
• Collector Current − Continuous, max: 0.3 A
• Collector Dissipation: 0.35 W
• DC Current Gain (h_fe): 10000
• Transition Frequency, min: 125 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23
• Electrically Similar to the Popular MPSA14 transistor

Here is an image showing the pin diagram of this transistor.The KST14 transistor is marked as "1N".The MPSA14 is the TO-92 version of the KST14.You can replace the KST14 with the BCV27, MMBT6427, MMBTA14 or PMBTA14.