FAQ
Q.
Please explain how an inductor (a coil) functions.
  • Inductors (Coils)


A. An inductor has the functions of developing electromotive force in the direction that reduces fluctuation when a fluctuating current flows and storing electric energy as magnetic energy. It has the characteristic of allowing DC current to flow easily while presenting high resistance against the flow of high frequency currents.

Inductors have the following specific application purposes:

  1. Dividing necessary signals and unnecessary signals (filtering)
  2. Stabilizing voltage in a power circuit (smoothing)
  3. Matching impedance in a high frequency circuit

All related FAQ
Q.
Is an explanation of the basics of an inductor (a coil) available?
Q.
What is the Q value of an inductor (a coil)?
Q.
Why is inductance specified by numbers such as 1, 1.5, 2.2, 3.3, etc.?
Q.
What is SRF (self-resonant frequency)?
Q.
Please explain the types of TDK's inductors (coils) and their differences.
Q.
Would it be safe to use an inductor in which a current exceeding the rated current flows momentarily?
Q.
Would it be a problem to use inductors in parallel?
Q.
Please provide a basic explanation of the process for choosing an inductor.
Q.
There are direction identification markings on some products. What are those markings for?
Q.
I would like to use high frequency inductors for impedance matching. Which products do you recommend?
Q.
I do not understand how the direction identification markings on the MLG/MHQ series inductors correspond to each other.
Q.
Which inductor is recommended for smoothing a power circuit?
Q.
Why are the characters such as "4R7" or "100" printed on some products?