... , low coercivity, low loss and good stability. Amorphous and Nanocrystalline Soft Magnetic Alloy Core 1. Material Grade: 1K 107 2. Features ... kinds of switching power supply, control transformer, precision current and voltage transformer, filter inductor, spike suppressor, energy storage inductor, reactor, magnetic ... of iron core can up to 1200mm. Amorphous and Nanocrystalline Soft Magnetic Alloy Core