MMST2222A Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 75 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.6 A
• Collector Dissipation: 0.2 W
• DC Current Gain (h_fe): 100 to 300
• Transition Frequency, min: 300 MHz
• Noise Figure, max: 4 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-323
• Electrically Similar to the Popular 2N2222A transistor

Here is an image showing the pin diagram of this transistor.The MMST2222A transistor is marked as "K3P".The complementary PNP transistor to the MMST2222A is the MMST2907A.You can replace the MMST2222A with the FJX2222A, KTN2222AU, MMST4401 or PMST4401.