Good gas performance, low partial discharge value: in the transformer insulation structure, how many local insulation weaknesses, it will first occur under the action of the electric field discharge, but not immediately the formation of the entire insulation penetration breakdown, it may occur on the surface of the insulator or internal, that is, partial discharge.

Chip inductors can be divided into low-power inductors and high-power inductors. Chip inductors, low-power inductors are mainly used in frequency selective circuits and oscillating circuits; high-power inductors are mainly used in dc/dc converters, used as energy storage components or lc filtering. There are three types of low-power inductors: wire-wound, multilayer, and high-frequency; high-power inductors are all wire-wound.

A mark (mark) that can distinguish the directionality is often attached to the wire-wound inductor. If the structure of high-power inductors is not completely symmetrical, high-current chip inductor manufacturers will produce characteristic differences in the packaging direction. Therefore, in order to make the product give full play to its due characteristics during use, the product is often marked with a mark to indicate its directionality.

The wire-wound chip inductor is based on the traditional wire-wound inductor production process, which transforms the plug-in inductor into a chip package, which reduces the volume of the inductor and is more convenient to use.

Transformers and inductors are easily confused because they have the same physical shape. There is only one rule that can be distinguished between them, the transformer is marked with "QTK", and the inductor is marked with "QHP".