They function as follows: The metal domes are placed on the printed circuit board by means of pressure-sensitive adhesive tape. In their relaxed state, the metal domes rest on the outer rim of the primary pathway. When pushed, the domes collapse and make contact with the secondary pathway, thereby closing the circuit. View picture to see how metal dome works.
In circuit design, the movement of air is called “venting”, which is important for the proper functioning of the dome switch. Lack of venting can cause adverse effects on the feel and function of the switch. While venting is not absolutely necessary for every application, it is desirable in almost all applications. When the dome is depressed, the air is trapped underneath it. To avoid compressing the air under the dome when actuated, it is recommended that a vent channel be present. The venting of the dome can be achieved in a number of different ways. The vent channel can go from dome to dome via a spacer layer.
Our production technique enables stable forces of metal domes, excellent tactile feel even after rigorous overload tests, control of dimensional tolerances, no burrs, thus reducing wear on the substrate, successful and reliable automatic placement with equipment, which enables high production capacity. The quality is approved not only in Asia but also overseas.
This drawing represents one of many possible layouts. Customer will be responsible for the final design of P.C.B. layout. Dome switches are designed to meet the unique requirements of circuit board applications. To successfully design dome switches for your applications, you must understand the intricacies of plating, venting, and actuator solutions for metal dome switches. These are all essential for ensuring reliable electrical connections and efficient functioning.
C (Circle)
A (4-Legs)
ZF (Square)
B (Oblong/Oval)
Custom Designs
circle metal dome
four-legs metal dome
triangle snap dome
oblong metal domes
P.C.B. layout.dome switches
This drawing represents one of many possible layouts，customer will be responsible for final design of P.C.B. layout.dome switches designed to meet the unique requirements of circuit board applications. To successfully design dome switches for your applications, you must understand the intricacies of plating, venting, and actuator solutions for metal dome switches. These are all essential for ensuring reliable electrical connections and efficient functionality in your electronic devices. Whether you are an engineer, designer, or manufacturer, we can guide you through your next project’s unique plating, venting, and actuator requirements.
For more information about the technology and parameters of metal domes, please visit our website Metal Domes Technology and Parameters. You're welcomed to visit our website frequently for updated technology, website, and more information of our metal dome, dome array, such as how to choose, to assembly metal dome.
Discover how metal dome switches work. This guide explains their snap-action principle, tactile response, and long lifespan, making them ideal for AI products, ...
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