FMMT3903 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 0.2 A
• Collector Dissipation: 0.33 W
• DC Current Gain (h_fe): 50 to 150
• Transition Frequency, min: 250 MHz
• Noise Figure, max: 6 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23
• Electrically Similar to the Popular 2N3903 transistor

Here is an image showing the pin diagram of this transistor.The FMMT3903 transistor is marked as "1W".The complementary PNP transistor to the FMMT3903 is the FMMT3905.The 2N3903 is the TO-92 version of the FMMT3903.You can replace the FMMT3903 with the 2SC3912, 2SC3913, 2SC3914, 2SC3915, FMMT451, FMMTA05, FMMTA06, KST05, KST06 or MMBT4400.