Tape Wound Cores: Supermalloy

What is Supermalloy?

For more technical information please look at the official Magnetics Strip Wound Core Design Manual.

Supermalloy is a specially processed 80% nickel-iron alloy. It is manufactured to develop the ultimate in high initial permeability and low losses. Initial permeability ranges from 40,000 to 100,000 while the coercive force is about 1/3 that of Square Permalloy 80. Supermalloy is very useful in ultra- sensitive transformers, especially pulse transformers, and ultra-sensitive magnetic amplifiers where low loss is mandatory.