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This thumb-pushwheel switch from is the best way to use a secret password to unlock your device. This device has a maximum current rating of 0.1 A @ 30VDC. This thumbwheel switch has a minimum operating temperature of -10 °C and a maximum of 70 °C. The A7D-206-1 thumbwheel switch has a pc board termination style. This product is 24.9 mm deep. The maximum DC voltage rating is 30 VDC.