magnetics isolation transformers electrical transformers MAGNETICS Dyco Electronics manufactures a wide range of military and commercial magnetics. We make transformers, reactors, inductors, chokes, coils...just about anything that involves copper foil or copper magnet wire. We also do simple electrical and mechanical assemblies and have extensive molding and potting capabilities. We invite you to send us your mature magnetics requirements for bid or challenge us with your problem parts or assemblies. Either way we are committed to bringing increased value to you the customer because we do believe that in your success lies our success! Impedance, (Z) is a measure for the manner and degree a component resists the flow of electrical current if a given voltage is applied. It is denoted by the symbol Z and is measured in ohms. Impedance differs from simple resistance in that it takes into possible phase offset. For a magnetics component impedance is comprised of the copper loses due to the resistance of the magnet wire and the inductive reactance losses associated with the changing magnetics and electric field losses. The summation of these resistive and reactive loss components are performed with vector addition. The permeability of a magnetic material about a specified operating point and applied magnetics field strength, especially under DC bias conditions. The incremental permeability is expressed as the slope of the B-H characteristic about the given operating point (dB/dH).