4A SPDT Momentary Push Switch

Push Button Switches contains an easy switch mechanism which controls some aspect of a machine or a process. These  Buttons typically made out of hard material like plastic or metal. The surface shaped to accommodate the human finger or hand, therefore the electronic switch are often easily depressed or pushed. Also, most push Switches also referred to as biased switches. A biased switch, often also considered what we call a “momentary switch”.  Where the user will push-for “on” or push-for “off” type. This is often also referred to as a push-to-make (SPST Momentary) or push-to break (SPST Momentary) mechanism.

Switches with the “push-to-make” (normally-open or NO) mechanism defined as a kind of push switch that operates by the switch making contact with the electronic system when the button pressed and breaks the present process when the button released. An example of this is often a keyboard button.  A “push-to-break” (or normally-closed or NC) electronic switch, on the opposite hand, breaks contact when the button pressed and makes contact when it released.

Applications:

Typical applications include: Calculators, push-button telephones, kitchen appliances, magnetic locks, and various other mechanical and electronic devices, home and commercial.