Toroid Terminolgy   •

Definitions of terms used in the toroid winding calculator at

AL: Inductance produced as a function of the number of coil turns. AL is uH/100 turns for iron-powder cores, and mH/1000 turns for ferrite cores.

frequency range: Frequencies over which the core material is designed to be used

mH: Abbreviation for millihenry

microhenry: One millionth of a henry, a measure of inductance. Abbreviated "uH"

millihenry: One thousandth of a henry, a measure of inductance. Abbreviated "mH"

Q: "Quality factor" - Inductive reactance divided by resistance: Q = XL/R

turn: One wire winding on a core. Each pass of the wire through the center of a core counts as one turn.

u: Electromagnetic permeability of a core. Cores with higher u values produce higher inductance. Pronounced 'mu' (the name of the Greek letter).

uH: Abbreviation for microhenry



                                                                                                    Home | Site Map | Contact | Twitter

This information is provided "as is" with no warranties, and confers no rights. In no event shall the author be liable for indirect, special, incidental, or consequential damages of any kind arising from any error in this information, including without limitation any loss or interruption of business, profits, use, or data.
Copyright ©1999-2021 All rights reserved.