FZT688B Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 12 V
• Collector-Base Voltage, max: 12 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 4 A
• Collector Dissipation: 1.2 W
• DC Current Gain (h_fe): 400
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-223
• Electrically Similar to the Popular ZTX688B transistor

Here is an image showing the pin diagram of this transistor.The ZTX688B is the TO-92 version of the FZT688B.