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

5439 Products showing for Optocouplers & Photodetectors

4 of 272
Vishay, BPW21R Visible Light Si Photodiode, Through Hole TO-5
  • RS Stock No. 708-2813
  • Mfr. Part No. BPW21R
Each
SGD15.57(exc. GST)
Vishay, TCMT1600 AC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 699-8348
  • Mfr. Part No. TCMT1600
Each (In a Pack of 10)
SGD0.651(exc. GST)
OPI1268S Optek, Digital Isolator, 20 kV, 5-Pin
  • RS Stock No. 880-1959
  • Mfr. Part No. OPI1268S
Each
SGD16.06(exc. GST)
Toshiba, TLP598GA(F) DC Input MOSFET Output Dual Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 760-3255
  • Mfr. Part No. TLP598GA(F)
Each
SGD5.82(exc. GST)
OPL550 Optek, IR Phototransistor, Through Hole 3-Pin Side Looker package
  • RS Stock No. 170-0779
  • Mfr. Part No. OPL550
Each (In a Bag of 50)
SGD2.432(exc. GST)
Vishay, BPW34 IR + Visible Light Si Photodiode, Through Hole
  • RS Stock No. 699-7616
  • Mfr. Part No. BPW34
Each (In a Pack of 5)
SGD0.866(exc. GST)
onsemi, MCT9001SD DC Input Phototransistor Output Dual Optocoupler, Surface Mount, 8-Pin SMT
  • RS Stock No. 186-8606
  • Mfr. Part No. MCT9001SD
Each (In a Pack of 10)
SGD1.116(exc. GST)
Vishay, SFH6343T Phototransistor Output Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 257-6855
  • Mfr. Part No. SFH6343T
Each
SGD2.94(exc. GST)
Panasonic, APV3111GV1Y Transistor Output Phototransistor, Surface Mount, 2-Pin
  • RS Stock No. 250-6889
  • Mfr. Part No. APV3111GV1Y
Each
SGD8.25(exc. GST)
Vishay, SFH615A-2 DC Input Transistor Output Optocoupler, Through Hole, 4-Pin PDIP
  • RS Stock No. 110-185
  • Mfr. Part No. SFH615A-2
Each
SGD0.70(exc. GST)
Hamamatsu, S1337-66BQ Full Spectrum Si Photodiode, Through Hole Ceramic
  • RS Stock No. 482-431
  • Mfr. Part No. S1337-66BQ
Each
SGD120.78(exc. GST)
Broadcom, HCPL-0701-000E DC Input Darlington Output Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 547-3734P
  • Mfr. Part No. HCPL-0701-000E
Each (Supplied in a Tube)
SGD3.54(exc. GST)
Broadcom, ACFL-6211T-000E CMOS Output Dual Optocoupler, Surface Mount, 12-Pin SO
  • RS Stock No. 230-5286P
  • Mfr. Part No. ACFL-6211T-000E
Each (Supplied in a Tube)
SGD10.45(exc. GST)
EE-SX1042 Omron, Through Hole Slotted Optical Switch, Transistor Output
  • RS Stock No. 219-2555
  • Mfr. Part No. EE-SX1042
Each
SGD2.97(exc. GST)
Broadcom, HCNW4503-300E DC Input Phototransistor Output Optocoupler, Surface Mount, 8-Pin DIP
  • RS Stock No. 818-8316P
  • Mfr. Part No. HCNW4503-300E
Each (Supplied in a Tube)
SGD4.645(exc. GST)
IL611A-3E NVE, 2-Channel Digital Isolator, 2.5 kVrms
  • RS Stock No. 148-868
  • Mfr. Part No. IL611A-3E
Each
SGD11.67(exc. GST)
EE-SX1046 Omron, Through Hole Slotted Optical Switch, Phototransistor Output
  • RS Stock No. 788-4931
  • Mfr. Part No. EE-SX1046
Each (In a Pack of 2)
SGD4.245(exc. GST)
Si8662BB-B-IS1 Skyworks Solutions Inc, 6-Channel Digital Isolator 150Mbps, 2.5 kV, 16-Pin SOIC
  • RS Stock No. 823-2208
  • Mfr. Part No. Si8662BB-B-IS1
Each (In a Pack of 5)
SGD5.912(exc. GST)
Hamamatsu, S9219-01 Visible Light Si Photodiode, Through Hole TO-5
  • RS Stock No. 482-445
  • Mfr. Part No. S9219-01
Each
SGD294.13(exc. GST)
Sharp, PC457L0NIP0F DC Input Transistor Output Optocoupler, Surface Mount, 5-Pin Mini-Flat
  • RS Stock No. 170-2388
  • Mfr. Part No. PC457L0NIP0F
Each (On a Reel of 3000)
SGD1.368(exc. GST)
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