Component Selection: Best Inductors on the Market

When it comes to quality, there is only one place to buy inductors: Coilcraft. Coilcraft has a wide selection of inductors and when you get to high frequencies, very good Q Factors.  But you can't just take my word for it, you need to try them for yourself, and Coilcraft makes it easy by allowing you to order samples.  All you have to do is find the coils you like and click request samples.  Then they'll send you the samples within a few days.  They pride themselves on satisfying the customer and quickly.

I use (in particular) the Mini Spring Air Core Inductors.  These have a small footprint and have "ok" tolerances (2%,5%,10% for many values).  Since a lot of High-Frequency designs require minimal inductors, it's very easy to design around these 10 values.  But let's say that you need a little more precision and different values.  You can always use the smaller Micro Spring Air Core Inductors.  They have precision to 2-digits.

So go out and sample some of these inductors.  They are the best Inductor company in customer satisfaction. They have quality parts that are used in the most strenuous military applications.  They guarantee quality and deliver it.

If you are needing Inductor equations, here you are:

Eq 1: Reactance Equation

Eq 2: Frequency to Angular Frequency

Eq 3: Voltage Differential Equation

Eq 4: Quality Factor

[R]: parasitic resistance of Inductor (Ohm)

Eq 5: Stored Energy in inductor L

[L] inductor (H)

[I] current through inductor (A)

Eq 6: Air Core Inductor Measurement

[r] outer radius of inductor (in)

[N] number of turns

[l] length of inductor coil (in)

[L] Inductance (uH)