The resistance value of a varistor changes with the voltage within a certain current and voltage range, and it can also be said to be a resistor whose resistance value is sensitive to voltage. Another English name for varistor is “Voltage Dependent Resistor”, abbreviated as “VDR”. In Taiwan, varistors are named according to their use, called surge absorbers, or electric shock (surge) suppressors (absorbers). Today, varistors have been widely used in many industries.
10D 471K and 14 D 471K are commonly seen on the body of the varistor. Do you know what they mean?
For 10D 471K, D is added after 10 to refer to the outer diameter of the product size, and for the following “K” after the number, it means the varistor voltage range of ±10%. The varistor 10D 471K refers to the size of the product with a diameter of 10mm, K is the varistor voltage range of ±10%, and 471 means the varistor voltage is 470V.
14D 471K refers to the size of the product with a diameter of 14mm, K is the varistor voltage range of ±10%, and 471 means the varistor voltage is 470V.
The two varistors are only different in product diameter and size, and other parameters are the same. The varistors 10D 471K and 14D 471K can be used instead of each other. In the actual work application, the engineering test shall prevail.
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Post time: Dec-19-2022