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

5143 Products showing for Optocouplers & Photodetectors

1 of 258
In Stock
Vishay BPW34 Visible Light, Infrared Photodiode, 65 °, Through Hole Flat Top
  • RS Stock No. 699-7616
  • Mfr. Part No. BPW34
Subtotal (1 pack of 5 units)
€6.36(exc. VAT)
In Stock
GP2Y0A21YK0F Sharp Reflective Optical Sensor
  • RS Stock No. 666-6564
  • Mfr. Part No. GP2Y0A21YK0F
Subtotal (1 unit)
€11.70(exc. VAT)
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)
€0.44(exc. VAT)
In Stock
TEPT5600 Vishay TEPT 40 ° Visible Light, Infrared Phototransistor, Through Hole 2-Pin 5 mm (T-1 3/4) package
  • RS Stock No. 700-0779
  • Mfr. Part No. TEPT5600
Subtotal (1 pack of 10 units)
€3.75(exc. VAT)
In Stock
TCRT5000 Vishay TCRT5000 Through Hole Reflective Optical Sensor, Phototransistor Output 1-Channel, Leaded package
  • RS Stock No. 708-5017
  • Mfr. Part No. TCRT5000
Subtotal (1 pack of 5 units)
€4.73(exc. VAT)
In Stock
Panasonic Optocoupler, Through Hole, 4-Pin
  • RS Stock No. 247-4136
  • Mfr. Part No. APV1121S
Subtotal (1 pack of 2 units)
€4.26(exc. VAT)
In Stock
Lite-On LTV-814S-TA1 AC Input Optocoupler, Surface Mount, 4-Pin SMT
  • RS Stock No. 691-2091
  • Mfr. Part No. LTV-814S-TA1
Subtotal (1 pack of 10 units)
€3.23(exc. VAT)
In Stock
Hamamatsu Photonics Visible Light Photodiode, 65 °, Through Hole TO-5
  • RS Stock No. 180-2609
  • Mfr. Part No. S13948-01SB
Subtotal (1 pack of 5 units)
€12.98(exc. VAT)
In Stock
OPB815WZ Optek Free Hanging Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 194-4030
  • Mfr. Part No. OPB815WZ
Subtotal (1 unit)
€5.35(exc. VAT)
In Stock
Optek PCB Slotted Optical Switch, OPB621, Photodiode OPB611, OPB620, Phototransistor OPB610 Output
  • RS Stock No. 204-3305
  • Mfr. Part No. OPB620
Subtotal (1 pack of 5 units)
€9.02(exc. VAT)
Unavailable
Vishay, CNY65A DC Input Phototransistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 708-4563P
  • Mfr. Part No. CNY65A
Subtotal 5 units (supplied in a tube)
€13.29(exc. VAT)
In Stock
Vishay DC Input Optocoupler, Surface, 4-Pin Surface Mount
  • RS Stock No. 699-8206P
  • Mfr. Part No. SFH6106-4T
Subtotal 10 units (supplied on a continuous strip)
€6.28(exc. VAT)
In Stock
Isocom ISP847XC DC Input 4-Channel Optocoupler, Through Hole, 16-Pin PDIP
  • RS Stock No. 453-0757
  • Mfr. Part No. ISP847XC
Subtotal (1 pack of 5 units)
€5.72(exc. VAT)
In Stock
Vishay Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 818-7528P
  • Mfr. Part No. TCST2202
Subtotal 10 units (supplied in a tube)
€9.70(exc. VAT)
Currently unavailable
Lite-On, LTV-847 DC Input Transistor Output Quad Optocoupler, Through Hole, 16-Pin PDIP
  • RS Stock No. 691-2233
  • Mfr. Part No. LTV-847
Subtotal (1 pack of 2 units)
€1.74(exc. VAT)
In Stock
OPB993T51Z Optek Panel Mount Slotted Optical Switch, Transistor Output
  • RS Stock No. 908-7264
  • Mfr. Part No. OPB993T51Z
Subtotal (1 unit)
€6.03(exc. VAT)
In Stock
ams OSRAM Ultraviolet, Infrared, Visible Light Photodiode, 80 °, Through Hole TO-18
  • RS Stock No. 497-5677P
  • Mfr. Part No. BPX 65
Subtotal 1 unit (supplied in a box)
€7.03(exc. VAT)
Temporarily out of stock
OPB680 Optek Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 171-3808
  • Mfr. Part No. OPB680
Subtotal (1 unit)
€3.96(exc. VAT)
Last RS stock
ams OSRAM Infrared Photodiode, 20 °, Through Hole Plastic
  • RS Stock No. 224-9979P
  • Mfr. Part No. SFH 203 PFA
Subtotal 10 units (supplied in a bag)
€5.92(exc. VAT)
In Stock
Optek, Infrared Transceiver 25 °, 880 nm, 36 in Range 0.34 mm 0.8 mm 0.32 mm
  • RS Stock No. 880-1999
  • Mfr. Part No. OPB100Z
Subtotal (1 unit)
€8.02(exc. VAT)
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