This is a 1N4007 Diode a member of the 1N400X series, a series of general-purpose silicon rectifier diodes with a current rating of 1A. They are mostly used for voltage rectification.
Average forward current is 1A
Non-repetitive Peak current is 30A
Reverse current is 5uA.
Peak repetitive Reverse voltage is 1000V
Power dissipation 3W
Diodes are used in full and half wave rectification, protection devices, current flow regulators, and to restrict flow of current to only one direction.