MMST4403 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -40 V
• Collector-Base Voltage, max: -40 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: 200 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-323
• Electrically Similar to the Popular 2N4403 transistor

Here is an image showing the pin diagram of this transistor.The MMST4403 transistor is marked as "K3T".The complementary NPN transistor to the MMST4403 is the MMST4401.The 2N4403 is the TO-92 version of the MMST4403.You can replace the MMST4403 with the FJX2907A, KTN2907AU, KTN2907U, MMST2907A or PMST4403.