Encoders and Switches
June 2004
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The EC20A series S is a 20-mm size metal shaft incremental encoder with a heavy rotation torque. The encoder is available with a 1.5-mm travel push-on switch and can be used as an encoder or potentiometer. Rated at 0.5mA 5 V d.c., the encoder is said to be best used for temperature, fan, and mode control applications. Another component offered by the company is its SDKS series, which is an anti-explosive door power switch for isobutane refrigerators. The switch reportedly eliminates the presence of sparks that are generated between contact terminals. This power switch detects the opening/closing of refrigerators doors or other appliances and is capable of switching on/off a 40-W lamp.
Alps Electric Co. Ltd.

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