The size is for reference only, subject to the actual product, please contact customer service if you have any questions
This product is metal dome (also known as Touch reset hardware elastic sheet or metal dome, snap dome), using ultra-thin 0.05 mm-0.1mm thickness) and super hard (generally made of stainless steel material with hardness between HV150-550). Mainly used in thin film switch, micro switch, PCB board, printed circuit board, hard board and other products. It has several advantages of stable contact, strong conduction, stable rebound and excellent hand feeling. Metal dome due to its good conduction performance, it can play a good role in enabling and controlling switches between operators and products. Secondly, the stable resilience of metal dome (automatic return after pressing) can bring comfortable touch feeling to the operator. Long service life. According to the requirements of different product structures and grades of customers, metal dome can be treated with nickel plating, silver plating, gold plating and other different surface treatments.
Generally, metal sheet is placed at the designated position first and then pasted on metal dome and circuit board with one side of adhesive transparent tape. Make metal dome fixed at a specific position of the circuit board without deviation. Or stick metal dome on the adhesive surface of the transparent tape first, and then stick the adhesive tape with metal dome on a specific position. Make metal dome fixed at a specific position of the circuit board without deviation.
Working principle: the metal shrapnel on membrane switches is located at the conductive part on the PCB board (most of them are located above the gold finger on the circuit board). When pressed, the center point of the shrapnel is concave downward, contact with the circuit on the PCB, thus forming a loop, the current passes through, and the whole product can work normally.
Various specifications metal dome (diameter from 3mm to 16mm) this product is round touch switch ammonium key metal dome, this product is mainly used for electronic products switch to play the role of instant connecting line so as to connect the power supply, round metal dome, it is mainly used in small products, such as remote control, security products, small electronic products, etc. It has the advantages of uniform elasticity, good hand feeling, stable quality, long service life, etc. Generally, it is convenient to install and produce with patches. Metal switch Spring (commonly known as metal dome, light contact piece), made of imported stainless steel material, is an important part of assembling electronic products switch, because it has good conductivity and long service life, the product has good stability and other advantages, which are deeply loved by our customers. Main uses: electronic gifts, mobile phones, telephones, electronic toys, small household appliances, remote control, electronic dictionary, electronic scales, CD/VCD/DVD, digital products, MP3/MP4, game consoles, etc. Product Range: round, triangle, cross, oval, etc.