Connection Characteristics of Illuminated Tactile Switches

The low-voltage rectification and filtering circuit for illuminated tactile switches: The pulsating voltage, after being reduced by a high-frequency transformer, also requires rectification and filtering using diodes and capacitors. The capacitors used in the rectification section must not have too high an AC impedance; otherwise, they will fail to filter out high-frequency AC components. Therefore, the selected capacitors need to have not only a large capacitance but also a low AC resistance. Additionally, one or two large inductance coils with magnetic cores can be seen, which work with the filtering capacitors to eliminate high-frequency AC components, ensuring a pure DC output. The metal dome is pressed to connect the printed circuit.

How important is the selection method for illuminated tactile switches? A good illuminated tactile switch is crucial for the overall lifespan of a product, such as computer keyboards or remote controls. If a poor-quality tactile switch is frequently pressed, the metal dome may fatigue and lose its elasticity, leading to failure. Thus, the selection of tactile switches is extremely important. The quality of waterproof tactile switches is influenced by several factors, including their protective properties, solderability, reliability of conductivity, lifespan, tactile feel, production processes, and installation dimensions.