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.
Calibrate new and existing equipment
Get a quote online, quick and easy
Return online within 30 days
Related Products
The light sensor exhibits advanced gesture detection, proximity ...
Description:
The light sensor exhibits advanced gesture detection, proximity detection, digital ambient light sense (ALS), colour sense (RGBC), and optical pattern generation/transmission for broadcast. Four separate diodes sensitive to different directionsVery High SensitivityBlocking of UV and IRRejection of ambient lightProgrammable Gain & Integration TimeI²C interfaceIRBeam Hardware Support.
The TCS34717 device provides Red, Green, Blue, and ...
Description:
The TCS34717 device provides Red, Green, Blue, and Clear (RGBC) light sensing that detects light intensity under various lighting conditions. A programmable wait state timer provides the ability of low-power mode, in between RGBC measurements. 1000000:1 dynamic rangeFour independent analogue-to-digital convertersProgrammable Analogue Gain, Integration Time, and Interrupt FunctionI²C interface.
A range of NPN silicon phototransistors from OSRAM ...
Description:
A range of NPN silicon phototransistors from OSRAM Opto Semiconductors, with improved V lambda characteristics. These compact phototransistors are suitable for a wide range of applications including; ambient light detectors, exposure meters for both daylight and artificial light, sensor for backlight dimming and for control and drive circuits. Adapted to ...
The SD5600 and SD5610 series, from Honeywell, are ...
Description:
The SD5600 and SD5610 series, from Honeywell, are a family of optoschmitt detectors. They are in TO-46 metal can packages with a domed top lens for a narrow viewing angle of 6°. The SD5600 and SD5610 photodetectors consist of a photodiode, amplifier, voltage regulator, schmitt trigger and an NPN transistor. ...