SPST Momentary Key Tact Switch
The SPST momentary key tact switch with RoHS compliant and can be ordered in a variety of colors and styles, making it easy to match this switch to your product design, it’s 11.5MM outline diameter size, the operation button color has red, black, gray, green, white options.
Description
The SPST momentary key tact switch with RoHS compliant and can be ordered in a variety of colors and styles, making it easy to match this switch to your product design, it’s 11.5MM outline diameter size, the operation button color has red, black, gray, green, white options.
TS4 the diameter is 11.5MM, there has red, green, black, gray actuators options.
Good electrical conductivity to improve the life span and reliability. Good wear resistance and oxidation resistance, beautiful appearance. PA66 base material has fire rating with 94V-2.
A SPST momentary key tact switch is a type of momentary switch that is commonly used in electronic devices. It is a Single Pole Single Throw (SPST) switch, which means that it has two terminals - one for the input and one for the output - and only one position of on or off. A momentary switch is one that only stays in the "on" position for as long as it is being pressed, and returns to the "off" position when it is released.
The key tact switch is named as such because it has a button that is shaped like a key, and it is meant to be pressed down like a piano key in order to activate the switch. This makes it easy to use and reduces user error, as the key shape guides the user to press down on the correct part of the switch. This is especially useful in situations where the switch is used frequently, such as in musical instruments, game controllers, or remote control devices.
The SPST momentary key tact switch has a relatively high actuation force, which means that it requires a certain amount of pressure to be applied in order to activate the switch. This is intentional, as it helps to prevent accidental activation and ensures that the switch is only activated when intended. The switch also has a relatively short travel distance, which means that it only needs to be pressed down a small amount in order to activate.
Drawing

TS4 Series of Momentary SPST Tactile Switch Specifications
Switch type | SPST momentary |
Contact resistance | 50mΩ Max |
Operating force: 130±50gf | 130±50gf |
Actuator diameter: 9mm | 9mm |
Insulation resistance: 100MΩ Min | 100MΩ Min |
Dielectric strength | 500V AC (50~60Hz) for 1 minute |
Life (nominal current & voltage) | 100000 cycle |
Temperature range | -10ºC to +65ºC |
Solderability | 235ºC for 5 seconds |
Travel | 0.80mm Max |
Colour | Green |
TS4 Square Momentary Button Tact Switch Features
1. Base PA66 material: flame resistant, wear resistant, good insulation flame, fire rating 94v - 2
2. Brass metal silver plated terminals, terminal contact performance is high, greatly improve the service life and reliability of the insertion piece good abrasion resistance, oxidation resistance, elegant appearance.
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