Introduction

Working principle: The metal shrapnel on the membrane button is located on the conductive part of the PCB board (mostly located above the golden fingers on the circuit board). When pressed, the center point of the shrapnel is concave and touches the circuit on the PCB. A loop is formed, the current passes through, and the entire product can work normally.

Product features: low contact resistance, oxidation resistance, wear resistance, long life, easy installation, low cost, and can replace light touch switches.

What are metal dome?

Metal dome (also commonly known as metal dome, snap dome), made of ultra-thin (0.05mm-0.1mm thickness) and ultra-hard (generally hardness between HV480-550) stainless steel materials).

Mainly used in membrane switches, micro switches, PCB boards, printed circuit boards, rigid boards and other products.

Advantages of Metal dome:

*Smooth contact

*Strong conductivity

*Rebound stable

*Good hand feeling

Due to its good conduction performance, the Metal dome can play a good role in switch activation and control between the operator and the product. Secondly, the stable resilience of the guozi (automatically return after pressing) can bring a comfortable touch to the operator. At the same time, the super long life of the Guozi tablet up to 1 million contact pressures provides practical quality support for the main product.

For general boards, according to the corresponding PAD (pad) position on the circuit board to arrange the position of each metal shrapnel / pot slice, and other components to set the corresponding avoidance positions and positioning holes. This product supplement is called Metal dome sheet conductive film, or metal shrapnel film, Dome sheet.

What are the advantages of metal dome compared with traditional silicone keys?

1. The membrane keys have a better feel

2. Longer life

3. It can indirectly improve the production efficiency of various types of switches using conductive films.

4. Low processing cost

5. Can be shipped in whole rolls

6, can be imposition, high efficiency

Scope of application: all electronic key switches are used;

扫描二维码，获取更多资讯！