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Panasonic Electronic Components ERZ-U21JP222H is an electronic component manufactured and distributed by Panasonic, used as a varistor ZNR surge absorber for thyristor mainly designed to shield the thyristor power controller and the power source of thyristor from high energy passing overvoltage. Zinc-Oxide Non-linear resistor, abbreviated as (ZNR), generally known as zinc oxide ZnO has voltage-current characteristics, with which the ZNR absorbs the negative surge voltage instantly to protect electronic devices from the overloaded voltage.
Compared to a traditional selenium surge absorber, the ZNR is smaller and has superior clamping voltage characteristics. Type J is for heavy-duty applications, while Type E is for transformers with relatively modest handling capacities. Panasonic Electronic Components ERZ-U21JP222H is featured with special attributes; when a voltage exceeds than the desired voltage of a varistor applied to the ZNR, the electrical energy flowing through the ZNR increases violently. The ZNR uses these attributes when an irregular voltage like a surge voltage is applied to it, enabling the current to pass through the ZNR; thus, absorbing the surge voltage is one of the key functions of the component.
Panasonic Electronic Components ERZ-U21JP222H, as a surge protection module, the ZNR can prove to be beneficial in the:
For more information please check the datasheets.
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