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A flex, or flexible printed circuit board (FPCB), often has a thin layer of plastic on the outside to provide insulation and protection. This layer helps prevent electrical short circuits, guards against moisture and contaminants, and enhances durability. Additionally, the plastic can contribute to the flexibility and lightweight nature of the circuit, making it suitable for applications in tight spaces or dynamic environments.

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1mo ago

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Why does flex have a thin layer of plastic on outside?

The thin layer of plastic on the outside of flex serves as a protective coating to prevent damage to the flexible printed circuit and components. It also helps to insulate the connections and improve the flexibility and durability of the flex circuit.


Why does flex have thin layer of plastic?

The thin layer of plastic in flex is a protective coating that helps to prevent the flex from creasing or bending too much, which can damage the electrical components inside. It also helps to provide a smooth surface for the electrical traces to adhere to, ensuring a reliable connection and preventing shorts.


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