The 1N400x series is a family of popular 1A general-purpose silicon rectifier diodes commonly used in AC adapters for common household appliances.
Its blocking voltage varies from 50V – 1N4001
1N4007 – 1000V
1N4002 – 100V
1N4003 – 200V
1N4004 – 400V
1N4005 – 600V
1N4006 – 800V
They are used as rectifiers in AC adapters of electrical appliances to convert AC to DC and are also used in other types of power converters or as freewheeling diodes to protect circuits from inductive loads.
