The membrane switch's tightly sealed structure minimises dust ingress into internal circuitry. Combined with a dust-proof mesh design, the device achieves an IP54 dust resistance rating. Testing indicates that after 100 hours of continuous operation in dusty environments, this projector accumulates only one-fifth the dust of conventional switches. Heat dissipation performance remains excellent, preventing equipment overheating caused by dust accumulation.
Material: Typically manufactured from phosphor bronze or other metallic materials exhibiting excellent electrical conductivity and elasticity. Some surfaces may be nickel-plated to enhance corrosion resistance and conductivity.
Shape: Generally circular, though variants such as arched forms exist. Dimensions are determined by specific application requirements; for instance, circular metal springs used in switches typically measure between 3-12mm in diameter.
Arrangement: Configured in an array pattern. The number and spacing of the contacts vary according to functional requirements to meet diverse specifications including electrical performance and mechanical stability.
