2pcs 100uH inductor 1/4 watt


250 in stock.

SKU: 001148 Categories: , Tags: , , , ,


What is an inductor (coil)?

Inductors are called passive components, the same as resistors (R) and capacitors (C), and are electronic components labeled with an “L”. It has the function of keeping the current constant. The ability of an inductor is expressed by “inductance”. The unit is henry (H).

An inductor has the same structure as a coil, but most inductors called inductors have a single winding (1 roll). Some are wound only with conductors, while others have a core inside the wound conductors. The action of an inductor is proportional to the square of the number of turns or radius and inversely proportional to the length.

Basic principles of inductors

First of all, let’s briefly explain the principle of inductors. When an electric current flows through a conductor, a magnetic force is generated around it in the direction of the right-hand thread. When current flows through an inductor with conductors wrapped around it in the same direction, the magnetic field generated around the wire is bound together and becomes an electromagnet (Figure 1). Conversely, it is also possible to generate an electric current from magnetic force.


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