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

5319 Products showing for Optocouplers & Photodetectors

1 of 266
Panasonic, AQY414EH DC Input MOSFET Output Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 352-5495
  • Mfr. Part No. AQY414EH
Each
HK$24.00(exc. GST)
OPB943W51Z Optek, Panel Mount Slotted Optical Switch, Transistor Output
  • RS Stock No. 908-7217
  • Mfr. Part No. OPB943W51Z
Each
HK$52.30(exc. GST)
TEPT5600 Vishay, 40 ° IR + Visible Light Phototransistor, Through Hole 2-Pin 5mm (T-1 3/4) package
  • RS Stock No. 165-2383
  • Mfr. Part No. TEPT5600
Each (In a Bag of 4000)
HK$2.917(exc. GST)
Vishay, VOM617AT DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SOP
  • RS Stock No. 165-6152
  • Mfr. Part No. VOM617AT
Each (On a Reel of 3000)
HK$1.243(exc. GST)
ISO7221AD Texas Instruments, 2-Channel Digital Isolator 1Mbps, 2.5 kVrms, 8-Pin SOIC
  • RS Stock No. 459-685P
  • Mfr. Part No. ISO7221AD
Each (Supplied in a Tube)
HK$30.30(exc. GST)
OSI Optoelectronics, PIN-10D IR Si Photodiode, Surface Mount BNC
  • RS Stock No. 848-6288
  • Mfr. Part No. PIN-10D
Each
HK$1,290.30(exc. GST)
Vishay, VOIH063A-X001T DC Input MOSFET Output Dual Optocoupler, Surface Mount, 8-Pin DIP
  • RS Stock No. 274-2780
  • Mfr. Part No. VOIH063A-X001T
Each (On a Reel of 2000)
HK$10.138(exc. GST)
Broadcom, HCPL-2611-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP
  • RS Stock No. 922-5788
  • Mfr. Part No. HCPL-2611-000E
Each (In a Tube of 50)
HK$15.932(exc. GST)
Broadcom, ACPL-214-500E AC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SOIC
  • RS Stock No. 922-6677
  • Mfr. Part No. ACPL-214-500E
Each (On a Reel of 3000)
HK$2.169(exc. GST)
Vishay, TCMT1100 DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 699-8326P
  • Mfr. Part No. TCMT1100
Each (Supplied as a Tape)
HK$2.90(exc. GST)
Vishay, TCMT1100 DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 699-8326
  • Mfr. Part No. TCMT1100
Each (In a Pack of 10)
HK$2.90(exc. GST)
Vishay, CNY64B DC Input Phototransistor Output Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 230-8323P
  • Mfr. Part No. CNY64B
Each (Supplied in a Tube)
HK$14.14(exc. GST)
OPB100Z Optek, Infrared Transceiver, Snap-In
  • RS Stock No. 880-1999
  • Mfr. Part No. OPB100Z
Each
HK$70.10(exc. GST)
Toshiba, TLP350(TP5,F) DC Input IGBT Gate Drive, MOSFET Output Dual Optocoupler, Surface Mount, 8-Pin PDIP
  • RS Stock No. 760-3221
  • Mfr. Part No. TLP350(TP5,F)
Each
HK$19.30(exc. GST)
RPI-352 ROHM, Through Hole Slotted Optical Switch
  • RS Stock No. 218-2259P
  • Mfr. Part No. RPI-352
Each (Supplied in a Bag)
HK$4.86(exc. GST)
OSI Optoelectronics, FCI-INGAAS-120L-FC InGaAs Photodiode, Through Hole
  • RS Stock No. 177-5565
  • Mfr. Part No. FCI-INGAAS-120L-FC
Each (In a Tray of 2)
HK$1,391.95(exc. GST)
Vishay TSOP14438, 38kHz IR Receiver ± 45, 30m Range
  • RS Stock No. 257-6893
  • Mfr. Part No. TSOP14438
Each (In a Tube of 90)
HK$5.226(exc. GST)
Broadcom, HCPL-3120-000E MOSFET Output Optocoupler, Surface Mount, 8-Pin DIP
  • RS Stock No. 178-3205
  • Mfr. Part No. HCPL-3120-000E
Each (In a Tube of 50)
HK$15.466(exc. GST)
onsemi, HCPL062N DC Input Open Collector Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 862-9306P
  • Mfr. Part No. HCPL062N
Each (Supplied on a Reel)
HK$33.58(exc. GST)
Broadcom, HCPL-4504-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin PDIP
  • RS Stock No. 547-3762
  • Mfr. Part No. HCPL-4504-000E
Each
HK$20.40(exc. GST)
Results per page
1
2
3
266

Related links