Optocouplers, Photodetectors & Photointerrupters

We offer an extensive range of optocouplers (opto-isolators), photodetectors AND photointerrupter modules. Our range features leading brands such as Avago Technologies, Fairchild & Vishay.

What are optocouplers?

An Optocoupler, also known as a photocoupler or optical isolator, is an electronic component that interconnects two electrical circuits using an LED and a phototransistor, housed in the same opaque package. There are also other types of source-sensor combinations which include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. These different pairings can have various effects as a result of the materials used, such as impact on speed. Optocouplers are used mainly to couple isolated circuits and have a range of uses in both domestic and industrial applications - often used on building sites.

We stock:

  • Photodiodes: also known as a diode, is a semiconductor device that converts light into an electrical current, generated when photons are absorbed. Other types of optocouplers include photodarlingtons and TRIACs.
  • Reflective optical sensors: normally used in automotive production, but can also be found in manufacturing processes to ensure they run smoothly. They use a system of mirrors and light beams that sense when they are interrupted to report and show faults.
  • Digital isolators: used to ensure accuracy in circuits by eliminating ground loop errors to improve performance. They can also help develop component safety as isolation devices allowing circuits to coexist and communicate without interruption or signal interference.
Related Products
A range of integrated photodiode ambient light detectors, ...
Description:
A range of integrated photodiode ambient light detectors, some with inbuilt ADC and I²C interface to allow light levels to be precisely converted into a digital form.
The APDS-9300 series, from Avago Technologies, are a ...
Description:
The APDS-9300 series, from Avago Technologies, are a family of miniature ambient light photo sensors with a digital (I²C) output. The device converts light intensity to a digital signal output for direct I²C interface. The APDS-9300 ambient light photo sensors ...
The KPS-3227SP1C, from Kingbright, is an ambient light ...
Description:
The KPS-3227SP1C, from Kingbright, is an ambient light photo sensor. The KPS-3227SP1C has been designed to resemble the sensitivity of the human eye to visible light. It is sensitive to visible light and is therefore ideal for controlling display backlighting ...
The UV Enhanced series, from OSI Optoelectronics, are ...
Description:
The UV Enhanced series, from OSI Optoelectronics, are a range of UV enhanced silicon photodiodes. This series includes two seperate families of photodiodes, inversion channel and planar diffused. Both of these families are designed for low noise detection in the ...