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

11 of 271
In Stock
Hamamatsu, S5980 Full Spectrum Si PIN Photodiode, Surface Mount Ceramic
  • RS Stock No. 482-422
  • Mfr. Part No. S5980
Subtotal (1 unit)
SGD53.14(exc. GST)
Temporarily out of stock
Hamamatsu, S2044 Visible Light Si Position Sensing Detector (PSD), Through Hole Metal
  • RS Stock No. 261-6263
  • Mfr. Part No. S2044
Subtotal (1 unit)
SGD398.81(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)
Temporarily out of stock
Vishay, SFH615A-4X017T DC Input Phototransistor Output Optocoupler, Through Hole, 4-Pin SMD
  • RS Stock No. 919-0880
  • Mfr. Part No. SFH615A-4X017T
Subtotal (1 reel of 1000 units)
SGD497.00(exc. GST)
In Stock
Wurth Elektronik, 140100146000 Phototransistor Output Phototransistor, Surface Mount, 4-Pin LSOP
  • RS Stock No. 238-5794P
  • Mfr. Part No. 140100146000
Subtotal 50 units (supplied on a continuous strip)
SGD15.80(exc. GST)
In Stock
Renesas, RV1S9231ACCSP-10YV#SC0 MOSFET Output Photocoupler, Surface Mount, 5-Pin SSOP
  • RS Stock No. 236-4617
  • Mfr. Part No. RV1S9231ACCSP-10YV#SC0
Subtotal (1 tape of 20 units)
SGD70.32(exc. GST)
In Stock
EE-SX1070 Omron, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 219-2511
  • Mfr. Part No. EE-SX1070
Subtotal (1 unit)
SGD2.09(exc. GST)
Currently unavailable
Toshiba, TLP3555A(TP1,F(O DC Input MOSFET Output Optocoupler, Surface Mount, 4-Pin DIP
  • RS Stock No. 206-9772P
  • Mfr. Part No. TLP3555A(TP1,F(O
Subtotal 5 units (supplied on a continuous strip)
SGD33.68(exc. GST)
In Stock
Broadcom, HCNR200-300E DC Input Photodiode Output Optocoupler, Surface Mount, 8-Pin PDIP
  • RS Stock No. 693-5264P
  • Mfr. Part No. HCNR200-300E
Subtotal 1 unit (supplied in a tube)
SGD6.33(exc. GST)
In Stock
OPB900W55Z Optek, Screw Mount Slotted Optical Switch, Transistor Output
  • RS Stock No. 880-1983
  • Mfr. Part No. OPB900W55Z
Subtotal (1 unit)
SGD11.76(exc. GST)
Currently unavailable
Vishay, VO3150A-X007T DC Input Transistor Output Optocoupler, Surface Mount, 8-Pin PDIP
  • RS Stock No. 919-0789
  • Mfr. Part No. VO3150A-X007T
Subtotal (1 reel of 1000 units)
SGD1,523.00(exc. GST)
In Stock
Renesas, RV1S9160ACCSP-100V#SC0 CMOS Output Optocoupler, Surface Mount, 5-Pin SOP
  • RS Stock No. 189-0997P
  • Mfr. Part No. RV1S9160ACCSP-100V#SC0
Subtotal 10 units (supplied in a tray)
SGD61.94(exc. GST)
Last RS stock
Vishay TSMP58138, 38kHz IR Receiver ± 45, 20m Range
  • RS Stock No. 257-6892P
  • Mfr. Part No. TSMP58138
Subtotal 1 unit (supplied in a bag)
SGD0.92(exc. GST)
In Stock
Vishay TSOP77538TR, 38kHz IR Receiver, 950nm, 18m Range
  • RS Stock No. 244-4815P
  • Mfr. Part No. TSOP77538TR
Subtotal 1 unit (supplied on a continuous strip)
SGD2.24(exc. GST)
Being discontinued
Si8401AA-B-IS Skyworks Solutions Inc, 2-Channel Digital Isolator 1Mbps, 1 kVrms, 8-Pin SOIC
  • RS Stock No. 753-2264
  • Mfr. Part No. Si8401AA-B-IS
Subtotal (1 unit)
SGD7.89(exc. GST)
In Stock
Vishay, TCMT4106 AC Input Phototransistor Output Quad Optocoupler, Surface Mount, 16-Pin SSOP
  • RS Stock No. 279-9628
  • Mfr. Part No. TCMT4106
Subtotal (1 pack of 5 units)
SGD11.02(exc. GST)
In Stock
Hamamatsu, G6849 IR InGaAs Photodiode, Through Hole TO-5
  • RS Stock No. 482-435
  • Mfr. Part No. G6849
Subtotal (1 unit)
SGD951.57(exc. GST)
In Stock
Wurth Elektronik, 140817142200 Phototransistor Output Phototransistor, Through Hole, 4-Pin DIP
  • RS Stock No. 238-5866P
  • Mfr. Part No. 140817142200
Subtotal 50 units (supplied on a continuous strip)
SGD15.75(exc. GST)
In Stock
onsemi, MOC3063TVM DC Input Phototriac Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 761-3707P
  • Mfr. Part No. MOC3063TVM
Subtotal 5 units (supplied in a box)
SGD4.73(exc. GST)
In Stock
Wurth Elektronik, 140817142200 Phototransistor Output Phototransistor, Through Hole, 4-Pin DIP
  • RS Stock No. 238-5865
  • Mfr. Part No. 140817142200
Subtotal (1 reel of 1500 units)
SGD417.00(exc. GST)
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