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

5406 Products showing for Optocouplers & Photodetectors

12 of 271
In Stock
Vishay, VBPW34FASR IR Si Photodiode, Surface Mount Reverse Gullwing
  • RS Stock No. 768-9401P
  • Mfr. Part No. VBPW34FASR
Subtotal 5 units (supplied on a continuous strip)
SGD6.51(exc. GST)
Being discontinued
Vishay, SFH6286-4X001T DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMD
  • RS Stock No. 230-8345
  • Mfr. Part No. SFH6286-4X001T
Subtotal (1 reel of 1000 units)
SGD806.00(exc. GST)
In Stock
onsemi, FOD817B DC Input Transistor Output Optocoupler, Through Hole, 4-Pin MDIP
  • RS Stock No. 808-8792
  • Mfr. Part No. FOD817B
Subtotal (1 pack of 25 units)
SGD8.70(exc. GST)
In Stock
onsemi, MOC3052SR2M Triac Output Optocoupler, Surface Mount, 6-Pin SMT
  • RS Stock No. 186-8690
  • Mfr. Part No. MOC3052SR2M
Subtotal (1 pack of 10 units)
SGD8.46(exc. GST)
In Stock
Wurth Elektronik, 140816140210 DC Input Phototransistor Output Quad Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 210-8023
  • Mfr. Part No. 140816140210
Subtotal (1 pack of 50 units)
SGD27.10(exc. GST)
Temporarily out of stock
Wurth Elektronik, 140816143300 DC Input Phototransistor Output Quad Optocoupler, Surface Mount, 4-Pin
  • RS Stock No. 210-8054
  • Mfr. Part No. 140816143300
Subtotal (1 reel of 1500 units)
SGD444.00(exc. GST)
In Stock
Broadcom, 6N139-000E DC Input Phototransistor Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 818-8230P
  • Mfr. Part No. 6N139-000E
Subtotal 10 units (supplied in a tube)
SGD12.35(exc. GST)
In Stock
onsemi, H11L1VM Schmitt Trigger Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 186-8412P
  • Mfr. Part No. H11L1VM
Subtotal 10 units (supplied in a bag)
SGD7.54(exc. GST)
Last RS stock
Vishay TSMP58138, 38kHz IR Receiver ± 45, 20m Range
  • RS Stock No. 257-6892
  • Mfr. Part No. TSMP58138
Subtotal (1 unit)
SGD0.92(exc. GST)
Last RS stock
Vishay, VO615A-9X017T DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin PDIP
  • RS Stock No. 699-8451P
  • Mfr. Part No. VO615A-9X017T
Subtotal 20 units (supplied on a continuous strip)
SGD7.18(exc. GST)
In Stock
Lite-On, LTV-814S-TA1 AC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SMT
  • RS Stock No. 691-2091
  • Mfr. Part No. LTV-814S-TA1
Subtotal (1 pack of 10 units)
SGD3.69(exc. GST)
In Stock
Toshiba, TLP2301(E(T DC Input Open Collector Output Optocoupler, Surface Mount, 6-Pin SO
  • RS Stock No. 206-9734
  • Mfr. Part No. TLP2301(E(T
Subtotal (1 pack of 25 units)
SGD12.45(exc. GST)
In Stock
Broadcom, ACPL-071L-000E DC Input Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 693-5892P
  • Mfr. Part No. ACPL-071L-000E
Subtotal 1 unit (supplied in a tube)
SGD4.23(exc. GST)
In Stock
Isocom, TLP621GR DC Input NPN Phototransistor Output Optocoupler, Through Hole, 2-Pin DIP
  • RS Stock No. 161-1041
  • Mfr. Part No. TLP621GR
Subtotal (1 tube of 100 units)
SGD36.60(exc. GST)
In Stock
Toshiba, TLP2361(E(T Photo IC Output Optocoupler, Surface Mount, 5-Pin SOIC
  • RS Stock No. 885-1190
  • Mfr. Part No. TLP2361(E(T
Subtotal (1 pack of 15 units)
SGD12.015(exc. GST)
In Stock
EE-SX1081 Omron, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 788-4943P
  • Mfr. Part No. EE-SX1081
Subtotal 5 units (supplied in a box)
SGD12.56(exc. GST)
Temporarily out of stock
Hamamatsu, C12702-03 Visible Light Si Photodiode PCB
  • RS Stock No. 261-6230
  • Mfr. Part No. C12702-03
Subtotal (1 unit)
SGD1,420.29(exc. GST)
In Stock
Broadcom, HCPL-063N-000E DC Input Transistor Output Dual Optocoupler, Through Hole, 8-Pin SOIC
  • RS Stock No. 547-3655P
  • Mfr. Part No. HCPL-063N-000E
Subtotal 1 unit (supplied in a tube)
SGD12.43(exc. GST)
In Stock
Wurth Elektronik, 1541021ECA170 IR Si Photodiode, Surface Mount 0805
  • RS Stock No. 215-1783
  • Mfr. Part No. 1541021ECA170
Subtotal (1 pack of 25 units)
SGD14.675(exc. GST)
In Stock
GP2Y0A21YK0F Sharp, Reflective Optical Sensor
  • RS Stock No. 666-6564
  • Mfr. Part No. GP2Y0A21YK0F
Subtotal (1 unit)
SGD17.18(exc. GST)
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