Abstract: It is usually a braided copper mesh (aluminum-magnesium braided mesh) or a copper foil (aluminum foil, etc.), which is very thin. It should be noted that one end must be connected to the circuit signal, because the shielding effect is mainly due to the metal body itself rather than the electric field, which is caused by the grounding of the shielding layer. The different forms of the grounding will directly affect the shielding effect.

USB data cable

The production process of ordinary shielded wire is as follows:

Twisted copper-extrusion (inner core)-wound (core wire)-wrapped aluminum foil-weaving (or winding)-extrusion (outside)

In electronic connectors, letters are often used to identify the use of materials, such as:

AL stands for aluminum, such as 4C+AL, which means a 4-wire aluminum wire package.

AB stands for weaving, such as 4C+80/0.10AB, which means a 4-core braided wire with a braided gauge of 80 0.10 mm OD copper wire.

S represents the winding, such as 4C+60/0.10S, meaning 4C winding wire, the winding specification is 60 0.10mm outer diameter copper wire.

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