FAQ

1

Electrical Characteristics

Q.
Is it possible to use a product with a rated voltage of 250V with only 100V?
  • Power Line EMC Filters
Q.
Up to what voltage is applicable for a product with AC.250V rated voltage?
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Q.
Up to what value of current is applicable in relation to the rated input current?
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Q.
What is the criterion for selecting the rated current?
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Q.
Are products with a larger input current better?
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Q.
Is it possible to use the products with AC.400Hz?
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Q.
What is the difference in attenuation characteristics between common mode and differential mode?
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Q.
Please explain how to read the attenuation-frequency characteristics graph.
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Q.
What is the difference between general high-frequency noise filters and pulse noise filters?
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Q.
Do the products meet the EN/IEC61000-4-5 lightning surge test?
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Q.
What are the recommended varistor and arrester?
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Q.
The required performance cannot be attained with one unit. Can multiple units be used in serial connection?
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Q.
Is it possible to use multiple filter units in a parallel connection on the load side?
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Q.
Is it possible to use a filter for AC power supply with DC input?
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Q.
What should be done with the ground terminal in use with DC input?
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Q.
What are the recommended products for use with DC input?
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Q.
Please explain what “LINE/LOAD” on the product label means.
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Q.
Is it possible to use products with the input/output side changed?
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Q.
What are the effects of use with the input/output side changed?
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Q.
What is the allowable level of input inrush current (surge current)?
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Q.
What is the allowable level of DC-input inrush current?
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Q.
Is it possible to use the products in a condition beyond the operating temperature range?
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Q.
Is it possible to use the products in a condition beyond the operating temperature range, if the current flow is kept low?
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Q.
What are the effects of use in a condition beyond the operating temperature range?
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Q.
Is there any problem in use of a product with the ground terminal left unconnected?
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Q.
What should be done for grounding?
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Q.
What should be done to ground the products with the ground terminals in two different locations?
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Q.
What should be done to ground products with no ground terminals?
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Q.
How should the input/output wiring be arranged?
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Q.
It is said that locating a wire in parallel with other wires is not good. How about that?
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