FMMT551 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -80 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 0.5 W
• DC Current Gain (h_fe): 50 to 150
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23
• Electrically Similar to the Popular ZTX551 transistor

Here is an image showing the pin diagram of this transistor.The FMMT551 transistor is marked as "551".The complementary NPN transistor to the FMMT551 is the FMMT451.The ZTX551 is the TO-92 version of the FMMT551.