GL5528 is used in light sensors as a sensing element. Can also be used as a location sensor or pseudo-touch button. A photoresistor is a semiconductor radio component that changes its resistance value depending on the luminous flux that hits the sensitive area. The sensitive area of the LDR GL5528 photoresistor consists of cadmium sulfide CdS. The Light Dependent Photoresistor does not have a p-n junction, therefore it has the same conductivity regardless of the direction of current flow.
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