In terms of product types, Sanyo’s Metal Dome Switch are rich and varied , among which shrapnel key switches are one of its important products. Shrapnel, commonly known as pot pieces or shrapnel, is usually made of ultra-thin materials (thickness between 0.05mm and 0.1mm). Common shapes include round, cross, triangular and oval, with diameters ranging from 3mm to 20mm and forces ranging from 100gf to 600gf. For example, circular shrapnel is evenly stressed and suitable for equipment with high stability requirements; cross-shaped shrapnel is suitable for scenarios with special requirements for contact positions. In addition, Sanyo’s Metal Dome Switches can be divided into gold plating, nickel plating, silver plating, bright light, etc. according to the surface electroplating treatment, and there are two options for single-sided or double-sided electroplating.
In terms of production technology, Shanyo pursues excellence and uses imported raw materials for some products to ensure excellent product quality and a certain production scale.
The working principle of Sanyo Metal Dome Switches is based on the elastic deformation characteristics of metal dome. When the dome on the membrane button is pressed, the center point of the dome will sag and contact the conductive part on the PCB (mainly above the gold finger of the circuit board), thus forming a circuit, the current passes, and the device starts to work. When the pressure is removed, the dome will return to its original state and the circuit will be disconnected. This simple and reliable working mechanism makes Metal Dome Switches widely used in various devices.
In the market competition, Shanyo has gained a firm foothold with its own advantages. On the one hand, Shanyo’s products are of excellent quality. They have passed aging and salt spray tests to ensure that the springs are not easily corroded and aged, and to ensure the normal use of the key switches. On the other hand, Shanyo attaches importance to technology and innovation, conducts technological innovation at low cost, and then uses technological innovation to reduce costs, providing customers with cost-effective products.