A diode is a two-terminal electronic component with asymmetric conductance; it has low resistance to current in one direction, and high resistance in the other direction.
Peak Repeat. Reverse Voltage (Vrm): 40V.
Max. RMS Reverse Voltage (Vr): 28V.
Average Rectified Current (Io): 3.0A.
Max. Reverse Current (Ir): 2.0mA.
Max. Forward Voltage Drop (Vf): 0.525V.
It is used in the rectifier circuit.
It is used in switching devices.
It is used in short-circuiting protection purposes.