What are the dimensions of the micro switch, classified by model?

There are many types of micro switches, and there are hundreds of internal structures. According to the volume, there are ordinary, small, and ultra-small; according to the protection performance, there are waterproof, dust-proof, and explosion-proof types; according to the breaking form, there are Single type, double type, multi-link type.

Classification：Switch FAQ

Author: AUGO Electronics

Release date：2022-02-20 18:29:42

Micro switches, as the name suggests, use very small force switches. It is a switch in which the external mechanical force acts on the action reed through the transmission element, so that the fixed contact at the end and the movable contact are quickly connected or disconnected. The micro switch has a small contact interval and a quick-action mechanism. The contact mechanism that performs the switching action with a specified stroke and force is covered by a casing, with a driver outside and a small shape. Micro switches are composed of five major categories of components. The contact distance is small and the torque is large. Usually there is a drive rod on the outside.

Classification of microswitches
There are many types of micro switches, and there are hundreds of internal structures. According to the volume, there are ordinary, small, and ultra-small; according to the protection performance, there are waterproof, dust-proof, and explosion-proof types; according to the breaking form, there are Single type, double type, multi-link type.
There is also a strong disconnect micro switch (when the reed of the switch does not work, the external force can also make the switch disconnect); according to the breaking capacity, there are ordinary type, DC type, micro-current type, and high-current type.
According to the use environment, there are ordinary type, high temperature resistant type (250℃), super high temperature resistant ceramic type (400℃)
Micro switches are generally based on unassisted pressing accessories as the basic type, and small stroke types and large stroke types are derived. Different auxiliary pressing accessories can be added according to the needs. According to the different pressing accessories added, the switches can be divided into various forms such as button type, reed roller type, lever roller type, short boom type, long boom type and so on.
In terms of size, there are small, ultra-small, ultra-small and so on. Functionally, it is waterproof. The most common application is the mouse button.
(1) Small micro switch:
The general size is 27.8 in length, 10.3 in width and 15.9 in height. In terms of parameters, there are different changes such as high capacity and low load.
(2) Ultra-small micro switch
The general size is 19.8 long, 6.4 wide, 10.2 high, and functionally has different performances of high precision and long life.
(3) Super small micro switch
The general size is 12.8 in length, 5.8 in width, 6.5 in height, and there is an extra-thin design in this type.

How microswitches work
The external mechanical force acts on the action reed through transmission elements (pressing pins, buttons, levers, rollers, etc.) point to switch on or off quickly.
When the force on the transmission element is removed, the action reed generates a reverse action force, and when the reverse stroke of the transmission element reaches the action critical point of the reed, the reverse action is completed instantaneously.
The contact distance of the micro switch is small, the action stroke is short, the pressing power is small, and the on-off is fast. The action speed of the moving contact has nothing to do with the action speed of the transmission element.

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