Potting-friendly C&K switch resists water ingress

C&K KSC PF switch

A switch from C&K has been designed to be potting friendly for the automotive and medical industries. The KSC PF switch is said to be compact yet resilient to water ingress.

Designers of applications in the automotive and medical device industries often need to ensure the switches and components they use can withstand harsh environments, including liquids that could leak in during everyday use, or during the after-use cleaning process, and which could irreparably damage the products.

The switch is claimed to be the first in the industry to be constructed to meet the size and performance requirements of products with small surface areas, while also withstanding harsh elements such as liquid and vibration.

The soft actuator tactile switch combines a 6.2 by 6.2 by 5.2mm SMT form factor with a potting-friendly extended cage, which improves potting level tolerance, enables faster production and increases quality.

Potting is often necessary to ensure complete protection even when a sealed switch is used, but potting levels are typically difficult to control in production. In addition, the traditional method of using a flat switch top risks the possibility of the potting compound moving inwards and blocking the actuator. By incorporating an extended cage, this is avoided.

“Designers building electrosurgical instruments or exterior automotive applications such as door handles and trunk openers need to ensure their products work each and every time they’re used,” said Jerome Smolinski, global product manager at C&K. “C&K’s new switches will be compact enough for any design, while building in the needed protections from harsh environments and regular, repeated usage.”

The switch has a soft actuator, which reduces pre and post travel, resulting in an improved experience. It is IP67 sealed and offers predicted life cycles up to 1000k.



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