C&K Components has developed a series of low-profile tactile switches that combine ultra-low current consumption and extended operational life. Designated the KMR series, the switches feature an operating current of only 1uA at 1.8V DC, actuation forces to 4N and a life span to 300,000 cycles, making them suitable for mobile applications.
Jerome Smolinski, senior product manager for C&K Components, says: "The surface-mount tactile switches are capable of extending the life of our customers' products. With reduced power consumption, the switches can extend the battery life in various applications, which is particularly beneficial in portable electronics such as automotive key fobs."
In addition to automotive key fobs, the KMR series microminiature switches are suitable for use in cellular phones, industrial electronics and medical equipment. The KMR 2 switches sit 1.9mm high and feature an actuation force of 1.2-4N, while the KMR 4 devices are 2.5mm high with an actuation force of 2-4N. The switches are constructed with silver plating (gold is available upon request), a tactile feel of more than 30 per cent and an optional ground pin. Both models have a footprint of 4.6 x 2.8mm.