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Optocouplers & Photodetectors

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.
Digital Isolator ICs
Digital Isolator ICs
IR Receivers
IR Receivers
IR Transceivers
IR Transceivers
Optocouplers
Optocouplers
Photodiodes
Photodiodes
Photomultipliers
Photomultipliers
Phototransistors
Phototransistors
Reflective Optical Sensors
Reflective Optical Sensors
Slotted Optical Switches
Slotted Optical Switches

5382 Products showing for Optocouplers & Photodetectors

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1 of 270
In Stock
TEPT5700 Vishay TEPT5700 ±50 ° Visible Light Phototransistor T-1 3/4 package
  • RS Stock No. 257-6878
  • Mfr. Part No. TEPT5700
Subtotal (1 unit)
£0.46(exc. VAT)
£0.46/unit
In Stock
Vishay TSOP38238, 38 kHz IR Receiver ±45 °, 45 m Range 2.5 V 5.5V, Through Hole 6.95 mm Minicast 5 mm 3-Pin 5mm
  • RS Stock No. 708-5086
  • Mfr. Part No. TSOP38238
Subtotal (1 pack of 5 units)
£2.67(exc. VAT)
£0.534/unit
In Stock
EE-SX1042 Omron Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 219-2555
  • Mfr. Part No. EE-SX1042
Subtotal (1 unit)
£2.16(exc. VAT)
£2.16/unit
In Stock
Optek, Infrared Transceiver 25 °, 880 nm, 36 in Range 0.34 mm 0.8 mm 0.32mm
  • RS Stock No. 880-1999
  • Mfr. Part No. OPB100Z
Subtotal (1 unit)
£6.68(exc. VAT)
£6.68/unit
In Stock
Optek Screw Slotted Optical Switch, Open Collector with 10K Pull Up Resistor, Buffer Output
  • RS Stock No. 455-0896
  • Mfr. Part No. OPB916BZ
Subtotal (1 unit)
£5.65(exc. VAT)
£5.65/unit
In Stock
IL712-2E NVE, 2-Channel Digital Isolator 110 Mbps, 2.5 kVrms, 5.5 V, 8-Pin PDIP
  • RS Stock No. 148-802
  • Mfr. Part No. IL712-2E
Subtotal (1 unit)
£8.30(exc. VAT)
£8.30/unit
In Stock
ams OSRAM BPW 21 Ultraviolet, Visible Light, Infrared Photodiode, 60 °, Through Hole TO-39
  • RS Stock No. 497-5661
  • Mfr. Part No. BPW 21
Subtotal (1 unit)
£10.09(exc. VAT)
£10.09/unit
In Stock
Hamamatsu Photonics S1337-1010BQ Infrared, Ultraviolet Photodiode, Through Hole
  • RS Stock No. 482-438
  • Mfr. Part No. S1337-1010BQ
Subtotal (1 unit)
£90.35(exc. VAT)
£90.35/unit
In Stock
IL711-2E NVE, 2-Channel Digital Isolator 110 Mbps, 2.5 kVrms, 5.5 V, 8-Pin PDIP
  • RS Stock No. 148-795
  • Mfr. Part No. IL711-2E
Subtotal (1 unit)
£8.30(exc. VAT)
£8.30/unit
In Stock
Hamamatsu Photonics S1223-01 Visible Light, Infrared, Ultraviolet Photodiode, 60 °, Through Hole TO-5
  • RS Stock No. 415-5722
  • Mfr. Part No. S1223-01
Subtotal (1 unit)
£18.20(exc. VAT)
£18.20/unit
In Stock
Hamamatsu Photonics S1336-18BK Ultraviolet, Infrared Photodiode, Through Hole TO-18
  • RS Stock No. 482-450
  • Mfr. Part No. S1336-18BK
Subtotal (1 unit)
£23.24(exc. VAT)
£23.24/unit
In Stock
Broadcom AC/DC Input Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 547-4131
  • Mfr. Part No. HCPL-3760-000E
Subtotal (1 unit)
£4.93(exc. VAT)
£4.93/unit
In Stock
Optek Screw Slotted Optical Switch, Buffer, Open Collector with 10K Pull Up Resistor Output
  • RS Stock No. 455-0874
  • Mfr. Part No. OPB460T11
Subtotal (1 unit)
£2.94(exc. VAT)
£2.94/unit
Last RS stock
ams OSRAM SFH 3710 120 ° Infrared, Ultraviolet, Visible Light Phototransistor, Surface 2-Pin Surface Mount package
  • RS Stock No. 654-8918P
  • Mfr. Part No. SFH 3710-3/4
Subtotal 5 units (supplied on a continuous strip)
£2.74(exc. VAT)
£0.548/unit
In Stock
OPB815WZ Optek Chassis Mount Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 194-4030
  • Mfr. Part No. OPB815WZ
Subtotal (1 unit)
£4.46(exc. VAT)
£4.46/unit
In Stock
EE-SX4070 Omron Through Hole Slotted Optical Switch, Open Collector Output
  • RS Stock No. 219-2527
  • Mfr. Part No. EE-SX4070
Subtotal (1 unit)
£2.62(exc. VAT)
£2.62/unit
In Stock
Optek Through Hole Slotted Optical Switch, Open Collector with 10K Pull Up Resistor, Buffer Output
  • RS Stock No. 455-0868
  • Mfr. Part No. OPB625
Subtotal (1 unit)
£2.17(exc. VAT)
£2.17/unit
In Stock
Hamamatsu Photonics S5990-01 Visible Light Position Sensing Detector (PSD), Surface Ceramic package
  • RS Stock No. 261-6272
  • Mfr. Part No. S5990-01
Subtotal (1 unit)
£27.47(exc. VAT)
£27.47/unit
In Stock
IL712-3E NVE, 2-Channel Digital Isolator 110 Mbps, 2.5 kVrms, 5.5V, 8-Pin SOIC
  • RS Stock No. 148-846
  • Mfr. Part No. IL712-3E
Subtotal (1 unit)
£7.17(exc. VAT)
£7.17/unit
In Stock
Vishay BPW20RF Visible Light, Infrared Photodiode, 65 °, Through Hole TO-5
  • RS Stock No. 708-2804
  • Mfr. Part No. BPW20RF
Subtotal (1 unit)
£4.42(exc. VAT)
£4.42/unit
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