【 Weak current College 】-for the main parameter 】

-For the main parameter has the bright resistance (RL), dark resistance (RD), maximum operating voltage (VM), light current (IL), the dark current (ID), the time constant, temperature coefficient sensitivity, etc.
1. on-resistance of light resistance refers to light exposure of photosensitive device affected by the resistance value.

2. dark dark resistance refers to the resistance of photosensitive device in no light irradiation (dark environment) resistance values.

3. the maximum working voltage maximum operating voltage is the power rating of photosensitive device by allowing the maximum voltage.

4. light current depending on the current means no light irradiation, photosensitive device in the applied voltage is lighting the current time.

5. dark current dark current is no light irradiation, photosensitive device in provisions adopted under the applied voltage current.

6. time constant time constant is defined-from light jump start into the stable light current of 63%.

7. temperature coefficient of resistance-temperature coefficient is used in environmental temperature 1 ° c, its resistance value of relative change.

8. sensitivity sensitivity refers to the photosensitive device in a light and light irradiation resistance values of relative change.