Photo resistor module KY-018

product description
Parameters and features
1, according to the spectral characteristics of photosensitive resistance: UV photosensitive resistance, infrared photosensitive resistance, visible photosensitive resistance.
2, the main parameters are as follows:
A, dark current, dark resistance: photosensitive resistance under a certain applied voltage, no light, when the flow.
The current is called dark current. The ratio of applied voltage to dark current is called dark resistance.
B, Sensitivity: Sensitivity refers to the resistance of the photosensitive resistance (dark resistance) and the relative change resistance (resistance) when light is irradiated.
C, voltage characteristic curve. The volt-ampere characteristic curve is used to describe the relationship between the applied voltage of the photo-sensing device and the photoresistor photocurrent whose photocurrent increases with the applied voltage.
D, temperature coefficient. Photoelectric effect Photoresistor affected by the temperature, the sensitivity of the photoresistor in the low temperature photorecistor is high, and the sensitivity in the high temperature is low.
E, rated power. Refers to the rated power of a certain line of photosensitive resistor power consumed, when the temperature rises, the power consumption decreases.
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