GDSI can provide a wide range of actuation forces with all tactile choices. All designs can be sealed against the environment.
- Non-tactile: Provide no click or discernable pressure response. Feedback to the operator is provided through other means, such as an audible sound or visual image provided by the controller in the device.
- Tactile-formed domes: Plastic domes can be used in limited environmental conditions. They do not perform well at high or low ambient temperatures. Their advantage is in high voume applications with constant optimal operating temperatures. This option is generally the least expensive tactile feedback choice.
- Tactile metal domes: Most common tactile choice. Provides the greatest durability and longevity. Gives a clear tactile snap that is heard and felt.
GDSI is a manufacturer of membrane switches that use a technology called D/SPC® to eliminate the failure points of cross over, bridged or jumper circuits which are limited to one side of the circuit substrate. GDSI prints circuitry on the top and bottom of the substrate, joined by vias through the substrate.