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

5338 Products showing for Optocouplers & Photodetectors

20 of 267
In Stock
Broadcom, HCPL-354-000E AC Input Transistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 693-5286
  • Mfr. Part No. HCPL-354-000E
Subtotal (1 pack of 10 units)
SGD6.74(exc. GST)
In Stock
Broadcom, HCPL-7720-000E AC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 818-8363
  • Mfr. Part No. HCPL-7720-000E
Subtotal (1 pack of 2 units)
SGD17.83(exc. GST)
In Stock
Vishay BPW24R Infrared, Visible Light Photodiode, 65 °, Through Hole TO-18
  • RS Stock No. 708-2816
  • Mfr. Part No. BPW24R
Subtotal (1 unit)
SGD4.89(exc. GST)
Temporarily out of stock
Broadcom, HCPL-4100-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 922-5854
  • Mfr. Part No. HCPL-4100-000E
Subtotal (1 tube of 50 units)
SGD381.90(exc. GST)
Temporarily out of stock
onsemi, FODM124R2 DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 671-2728
  • Mfr. Part No. FODM124R2
Subtotal (1 pack of 5 units)
SGD4.35(exc. GST)
In Stock
onsemi, H11L1VM Schmitt Trigger Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 186-8412
  • Mfr. Part No. H11L1VM
Subtotal (1 pack of 10 units)
SGD7.54(exc. GST)
Temporarily out of stock
Broadcom, HCPL-053L-000E DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 236-880
  • Mfr. Part No. HCPL-053L-000E
Subtotal (1 unit)
SGD6.14(exc. GST)
In Stock
Hamamatsu Photonics S2386-45K Infrared, Visible Light Photodiode, Through Hole TO-5
  • RS Stock No. 482-426
  • Mfr. Part No. S2386-45K
Subtotal (1 unit)
SGD31.40(exc. GST)
Temporarily out of stock
Lite-On, CNY17-2M DC Input Optocoupler, Through Hole, 6-Pin PDIP
  • RS Stock No. 125-7570
  • Mfr. Part No. CNY17-2M
Subtotal (1 tube of 65 units)
SGD23.075(exc. GST)
In Stock
TCST2202 Vishay Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 818-7528
  • Mfr. Part No. TCST2202
Subtotal (1 pack of 10 units)
SGD13.02(exc. GST)
Temporarily out of stock
ams OSRAM 50 ° Visible Light, Infrared Phototransistor, Through Hole 2-Pin 5 mm (T-1 3/4) package
  • RS Stock No. 168-5291
  • Mfr. Part No. SFH 300-3/4
Subtotal (1 tape of 1000 units)
SGD345.00(exc. GST)
Last RS stock
Vishay, VOT8024AB Phototriac Output Optocoupler, Surface Mount, 4-Pin SMD
  • RS Stock No. 244-4884
  • Mfr. Part No. VOT8024AB
Subtotal (1 tube of 100 units)
SGD89.40(exc. GST)
Currently unavailable
Vishay Infrared PIN Photodiode, ±15°, Surface Surface Mount
  • RS Stock No. 244-4763
  • Mfr. Part No. TEMD1040
Subtotal (1 bag of 1000 units)
SGD523.00(exc. GST)
Temporarily out of stock
onsemi, MOC3042M DC Input Triac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 178-7524
  • Mfr. Part No. MOC3042M
Subtotal (1 bag of 1000 units)
SGD535.00(exc. GST)
In Stock
Wurth Elektronik, 140817144100 Phototransistor Output Phototransistor, Through Hole, 4-Pin DIP
  • RS Stock No. 238-5884
  • Mfr. Part No. 140817144100
Subtotal (1 reel of 1500 units)
SGD417.00(exc. GST)
Temporarily out of stock
onsemi, FOD814AS AC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin MDIP
  • RS Stock No. 808-8777
  • Mfr. Part No. FOD814AS
Subtotal (1 pack of 20 units)
SGD9.96(exc. GST)
In Stock
Broadcom, HCPL-0661-500E Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SO
  • RS Stock No. 174-4158
  • Mfr. Part No. HCPL-0661-500E
Subtotal (1 pack of 2 units)
SGD20.77(exc. GST)
In Stock
Broadcom, ACPL-227-500E DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 693-6784
  • Mfr. Part No. ACPL-227-500E
Subtotal (1 pack of 5 units)
SGD5.94(exc. GST)
In Stock
Broadcom, ACPL-M21L-500E DC Input CMOS Output Optocoupler, Surface Mount, 5-Pin SO
  • RS Stock No. 830-4990
  • Mfr. Part No. ACPL-M21L-500E
Subtotal (1 pack of 4 units)
SGD16.072(exc. GST)
In Stock
Toshiba, TLP350H(D4,F) Photo IC Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 885-1281
  • Mfr. Part No. TLP350H(D4,F)
Subtotal (1 pack of 5 units)
SGD12.73(exc. GST)
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