Touch Switches and Tactile Switches
Switches are electrical components that are common to countless assemblies, serving to disconnect or connect the conducting path within an electrical circuit. Consisting of contacts that are managed by a knob or actuator, switches may come in many different configurations to facilitate varying operations. Tactile and touch switches are two common variations, both of which allow for a process to be carried out when the switch is touched or pressed. In this blog, we will discuss the difference between each switch type and their use, allowing you to better understand their functionality and importance.
A touch switch is one of the most simplistic types of tactile sensors, allowing for operations to be carried out with a simple touch. Generally, these buttons may be found on systems such as lamps, wall switches, and various computer terminals. Additionally, touchscreens are also composed of touch switches.
Touch switches may come in numerous types, their primary forms being capacitance, resistance touch, and piezo touch switches. Capacitance switches operate on a single electrode, and body capacitance is used for functionality. As such, the switch is designed to charge and discharge its metal exterior until a capacitance change is detected, such as when a person touches it. Such sensor types are common to integrated circuits and short-range proximity sensor devices.
Resistance touch switches require two electrodes to have physical contact with a conductive object for operation, their resistance between metal pieces dropping when the conductive object is present. Simple in operation, touch switches will generally activate when a person touches the button, the device turning off once fingers are removed from the switch. Piezo touch switches, meanwhile, consist of a piezo ceramic
that mechanically bends when touched, allowing it to act as a sort of actuator.
are fairly similar to touch switches, and they are known for the tactile feedback that is provided to a user when the button or switch is depressed onto a control panel or printed circuit board (PCB). Tactile switches are common to various applications, often being a common switch type on a keyboard, keypad, instrument, or interface control-panel. When procuring such components, they most often come in the form of either tact switches or keyswitches.
Tact switches are tactile electromechanical components that are often found on keyboards, keypads, and various interfaces. Keyswitches can also be found on keyboards and keypads as well. Dome switches are also considered a type of tactile switch, such components being placed under a rubber bubble or dome. When such switches are pressed, the dome will collapse, causing the switch to establish contact. Such switches are commonly used for consumer keyboards that are found in office settings, typically being quieter than other tactile switch types.
With the use of switch components
, control over various systems can be established with ease. As mechanical assemblies, switches can begin to degrade over time, eventually requiring replacement for continued functionality. When such occurrences happen, look no further than ASAP Parts Unlimited for all your fulfillment needs.
ASAP Parts Unlimited
is a premier purchasing platform owned and operated by ASAP Semiconductor, and we are your sourcing solution for top quality switches that have been sourced from leading global manufacturers that we trust. Take the time to explore our offerings at your leisure, and our team of industry experts is readily on standby 24/7x365 to assist customers throughout the purchasing process however necessary. If you find particular items that you wish to procure, we invite you to fill out and submit an Instant RFQ form as provided on our website. Once received, a dedicated account manager will reach out to you in just 15 minutes or less with a personalized quote based on your individual needs and requirements.
Posted on September 17, 2021