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The Fultec device is a protection switch that virtually instantaneously disconnects vulnerable equipment from the disturbed input power terminal and then reconnects the system after the surge has passed. The device offers simpler, cheaper and higher performance protection than existing shunt protection devices which impact the performance of sensitive circuits (such as communications equipment) and limit circuit bandwidth because of circuit loading. The co-investors were Crescendo Ventures, Mayfield, ComVentures and Allen & Buckeridge.  In 2008, the surge protection business was sold to Bourns Semi Conductor Inc.