Analog Linear Optical Coupling is photoelectric component by inputting the different current to control the changes of resistance. It makes use of CdS and LED semi-conductor with rigorous selection, aging and test. The product is widely used by current input control and pure resistance with non-polarity output.Our company own the patent of manufacturing and the patent number is ZL02225334.3.

Characteristics:
Pure resistor and non-polarity output ;
Wide range of analog linear resistance, the low "on"resistance, high "off"resistance;
Simple circuit configuration suitable for DC and AC use;
Input to output isolation, and low distortion coupling;
Encapsulation with PPO high-temperature resistant material.

Acoustic protect and control;
Volume control and electric isolation coupling;
Light adjust and motor speed control;
Communication transmission and automatic control.