FAQ

1

Electrical Characteristics

Q.
Please explain how to read the attenuation-frequency characteristics graph.
  • Power Line EMC Filters
Q.
What is the difference between general high-frequency noise filters and pulse noise filters?
  • Power Line EMC Filters
Q.
Do the products meet the EN/IEC61000-4-5 lightning surge test?
  • Power Line EMC Filters
Q.
What are the recommended varistor and arrester?
  • Power Line EMC Filters
Q.
The required performance cannot be attained with one unit. Can multiple units be used in serial connection?
  • Power Line EMC Filters
Q.
Is it possible to use multiple filter units in a parallel connection on the load side?
  • Power Line EMC Filters
Q.
Is it possible to use a filter for AC power supply with DC input?
  • Power Line EMC Filters
Q.
What should be done with the ground terminal in use with DC input?
  • Power Line EMC Filters
Q.
What are the recommended products for use with DC input?
  • Power Line EMC Filters
Q.
Please explain what “LINE/LOAD” on the product label means.
  • Power Line EMC Filters
Q.
Is it possible to use products with the input/output side changed?
  • Power Line EMC Filters
Q.
What are the effects of use with the input/output side changed?
  • Power Line EMC Filters
Q.
What is the allowable level of input inrush current (surge current)?
  • Power Line EMC Filters
Q.
What is the allowable level of DC-input inrush current?
  • Power Line EMC Filters
Q.
Is it possible to use the products in a condition beyond the operating temperature range?
  • Power Line EMC Filters
Q.
Is it possible to use the products in a condition beyond the operating temperature range, if the current flow is kept low?
  • Power Line EMC Filters
Q.
What are the effects of use in a condition beyond the operating temperature range?
  • Power Line EMC Filters
Q.
Is there any problem in use of a product with the ground terminal left unconnected?
  • Power Line EMC Filters
Q.
What should be done for grounding?
  • Power Line EMC Filters
Q.
What should be done to ground the products with the ground terminals in two different locations?
  • Power Line EMC Filters
Q.
What should be done to ground products with no ground terminals?
  • Power Line EMC Filters
Q.
How should the input/output wiring be arranged?
  • Power Line EMC Filters
Q.
It is said that locating a wire in parallel with other wires is not good. How about that?
  • Power Line EMC Filters
Q.
How should the input wires group and the output wires group be dealt with?
  • Power Line EMC Filters
Q.
What kinds of phenomena occur when wires are crossed?
  • Power Line EMC Filters
Q.
What is the recommended tightening torque for the terminal screws?
  • Power Line EMC Filters
Q.
We would like to know the calculation formula for input current for three-phase devices.
  • Power Line EMC Filters
Q.
What is “dBμV”?
  • Power Line EMC Filters
Q.
Please explain the loss (amount of heat generation).
  • Power Line EMC Filters
Q.
Where can I see the impeadance value for the frequency at which I would like to use the chip beads?
  • Chip Beads