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MEMS-based magnetic reed switch presented as industry’s smallest

Tue, 11/05/2013 - 3:20pm

MEMS-based reed switchCoto Technology Inc. announced the availability of its RedRock RS1-A-2515 Microelectromechanical Systems (MEMS)-based magnetic reed switch.  Based on its high aspect ratio MEMS design and manufacturing processes, the switch provides all of the characteristics of conventional magnetic reed switch technology, including zero power operation and high-power hot switching. The company has married these features to the inherent benefits of MEMS-based design and manufacture, including item-to-item uniformity, robustness and small size by using wafer level packaging (WLP). The resulting solution meets the demanding requirements of applications in the medical, military, and industrial markets. The switch has a footprint of less than 2.4 mm2 (1.10 x 2.18 mm), is 1.10 mm high and is the smallest MEMS-based reed switch available on the market today. The switch has a release sensitivity of approximately 60 percent of the closure sensitivity. This high level of hysteresis minimizes the potential of sticking when the magnetic field is removed greatly adding to the switch’s reliability. The RS1-A-2515 switch has a maximum switching voltage of 100 VDC with a switching current of 50mA DC or 35mA AC, rms. The zero operating power is desirable in power sensitive applications, particularly those operating with battery power.

Coto Technology Inc., www.cotorelay.com

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