Are you Facing trouble in finding your product?      Please write us email at

MOC7811 Slotted Opto Isolator

MOC7811 Slotted Opto Isolator

MOC7811 Slotted Opto Isolator Module (Slotted Optical Switch)

MOC7811 is a slotted Opto isolator module, with an IR transmitter & a photodiode mounted on it. Performs Non-Contact Object Sensing. This is normally used as positional sensor switch (limit switch) or as Position Encoder sensors used to find position of the wheel. It consists of IR LED and Photodiode mounted facing each other enclosed in plastic body. 


  • Size: Refer to the image below
  • Mounting hole diameter: 3mm
  • Mounting hole spacing: 19mm
  • Slot width: 3mm
  • Slot depth: 7mm


  • DC motor position / velocity control
  • Position and velocity servomechanisms
  • Factory automation robots
  • Numerically controlled machinery
  • Computer printers and plotters


When light emitted by the IR LED is blocked because of alternating slots of the encoder disc logic level of the photo diode changes. This change in the logic level can be sensed by the microcontroller or by discrete hardware. This sensor is used to give position feedback to the robot or as Limit switches.

Write a review

Note: HTML is not translated!
    Bad           Good

  • Views: 1672
  • Product Code: MOC7811 Slotted Optoisolator
  • Availability: In Stock
  • Rs23.00

Tags: moc7811, slot, opto, isolator light, photo, sensor, ir, encoder, photodiode, transmitter

1.5 inch Seven Segment Display -Common Anode- RED Out Of Stock!
1.5 inch Seven Segment Display -Common Anode- REDCommon Anode display, all the anode connections of ..
ATMEL - ATMEGA16A-PU - MCU, 8BIT, ATMEGA, 16MHZ, DIP-40The ATmega16A is a low-power CMOS 8-bit micr..
Rs150.00 Rs140.00
Arduino Pro Mini Atmega 328P -35%
The Arduino Pro Mini is intended for advanced users who require flexibility, low-cost, and small s..
Rs350.00 Rs229.00
QualityHigh quality general purpose pcbgood for prototypingpack contains5 Pc general purpose circuit..
20K Ohms Variable Resistance/Trimpot PotentiometerA open carbon trimpot or trimmer potentiometer is ..
1 Watt SMD LED-WhiteFeatures:Expected life 50000+ hours*Low Power DrainageHigh BrightnessLow Forward..