FAQ

1

Electrical Characteristics

Q.
Which voltage location is being referred to for the rated voltage of a common mode filter (common mode choke)?
  • Signal Line Common Mode Chokes/Filters
Q.
At which frequency is the "impedance," which is the representative characteristic of common mode filters / chokes, defined?
  • Signal Line Common Mode Chokes/Filters
Q.
What is the defining condition for the rated current of common mode filters / chokes?
  • Signal Line Common Mode Chokes/Filters
Q.
Where is the characteristic impedance described?
  • Signal Line Common Mode Chokes/Filters
Q.
Where can I check the frequency characteristics of the common mode impedance?
  • Signal Line Common Mode Chokes/Filters
Q.
Where can I check the insertion loss?
  • Signal Line Common Mode Chokes/Filters

Environmental Compatibility

Q.
Where can I see the RoHS certificate or REACH certificate?
  • Signal Line Common Mode Chokes/Filters
Q.
In there any display on the product model no. that provides information such as whether the product is lead-free?
  • Signal Line Common Mode Chokes/Filters
Q.
Can your products be disposed of as normal industrial waste?
  • Signal Line Common Mode Chokes/Filters
Q.
We would like to know the models that support RoHS.
  • Power Line EMC Filters
Q.
Is not asbestos used in filters?
  • Power Line EMC Filters
Q.
We would like to know contact information and procedures for the harmful materials research.
  • Power Line EMC Filters
Q.
Are products in the MPZ series compliant with the amended EU RoHS (RoHS2) directive?
  • Chip Beads
Q.
Is red phosphorus used in TDK chip beads?
  • Chip Beads
Q.
Do the chip bead products of TDK support lead-free soldering?
  • Chip Beads

Product Quality and Service Life

Q.
What is the FIT (Failures in Time) of your chip beads?
  • Chip Beads
Q.
Please provide the Mean Time Between Failure (MTBF) and Failures in Time (FIT) for common mode filters (common mode chokes).
  • Signal Line Common Mode Chokes/Filters
Q.
What are the main failure modes of common mode filters / chokes?
  • Signal Line Common Mode Chokes/Filters
Q.
Are there any settings for service life?
  • Power Line EMC Filters
Q.
Please describe the failure mode of chip beads.
  • Chip Beads

Reliability

Q.
What kind of failure occurs when an overcurrent flows?
  • Signal Line Common Mode Chokes/Filters
Q.
What are the reliability test items for common mode filters / chokes?
  • Signal Line Common Mode Chokes/Filters
Q.
How can I obtain the detailed reliability test results?
  • Signal Line Common Mode Chokes/Filters

Structure, material

Q.
Can they be washed?
  • Chip Beads
Q.
Do chip beads make squeaking noises like multilayer ceramic capacitors? What should be done if any squeaking noises are produced?
  • Chip Beads
Q.
Can common mode filters / chokes be washed?
  • Signal Line Common Mode Chokes/Filters
Q.
Are there any restrictions for wire wound type common mode filters / chokes when a gold foil pattern is used on the circuit board to which they are mounted?
  • Signal Line Common Mode Chokes/Filters
Q.
Can I apply coating for moisture prevention on common mode filters / chokes?
  • Signal Line Common Mode Chokes/Filters
Q.
How can I know the composition of the electrodes or terminals?
  • Signal Line Common Mode Chokes/Filters
Q.
Can I apply resin on common mode filters / chokes?
  • Signal Line Common Mode Chokes/Filters