What is leakage current?

AC/DC Power Adapter, we clearly explain what leakage current is in switching power supplies.

What Is Leakage Current?

Leakage Current LEAKAGE CURRENT

Leakage current (leak current) specifies the amount of current that flows to the ground through the enclosure = main body case from the input of the commercial power supply: AC100V.

This standard ensures that a person will not receive a slight electric shock even if they touch the main unit while the AC/DC Power Adapter is connected to an outlet.

Older washing machines and similar appliances were made of metal, so if the insulation between the enclosure = main body and the internal circuitry deteriorated, touching the washing machine with wet hands could occasionally cause a tingling electric shock.

This occurs because insulation deterioration induces the AC100V power supply voltage to the enclosure, and when a person touches the enclosure, current flows through the body and into the ground through the feet, causing a tingling sensation.

Since the case of an AC/DC Power Adapter is usually made of insulating resin material, even if internal components are damaged due to impact such as dropping and insulation deterioration occurs, it is highly unlikely that touching the case will result in electric shock. However, the DC plug on the output side has an exposed metal structure, so there is a possibility of electric shock if it is touched.

Of course, a properly functioning AC/DC Power Adapter has insulation between the input and output, so touching the DC plug will not result in electric shock.

The above specifications indicate that the leakage current is 0.25 mA or less in accordance with safety standards.

We also specialize in AC/DC Power Adapter with reduced leakage current for medical applications. We offer an extensive lineup, so please feel free to contact us with any questions.

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