The 1N4002 is a standard recovery rectifier diode in a DO41 type package. Used for power protection, clipping, and more. Similar to 1N4001 but a higher Peak Reverse Voltage.

Specifications
Standard Recovery Rectifier
Forward Current: 1A
Forward Current Avg Rectified, IF(AV): 1A
Forward Surge Current Max, Ifsm: 30A
Forward Voltage: 1V
Forward Voltage Max, VF: 1V
Mounting Type:Through Hole

PLEASE NOTE: Never bend the leads in such a way as to apply any stress to the casing. Always use a heat sink when soldering.