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

5315 Products showing for Optocouplers & Photodetectors

85 of 266
暫時缺貨
Toshiba, TLP171GA(F(O DC Input MOSFET Output Optocoupler, Surface Mount, 4-Pin SOP
  • RS Stock No. 799-5236
  • Mfr. Part No. TLP171GA(F(O
个（每托盘 2 ）
HK$18.59
暫時缺貨
onsemi, MOC3052SM DC Input Phototriac Output Optocoupler, Surface Mount, 6-Pin MDIP
  • RS Stock No. 761-3690
  • Mfr. Part No. MOC3052SM
个（每托盘 5 ）
HK$7.50
暫時缺貨
Toshiba, TLP548J(F) DC Input Photothyristor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 756-3514
  • Mfr. Part No. TLP548J(F)
个
HK$25.23
有庫存
Toshiba, TLP785(GB,F(C DC Input Transistor Output Optocoupler, Through Hole, 4-Pin DIP
  • RS Stock No. 756-3785
  • Mfr. Part No. TLP785(GB,F(C
个（每托盘 10 ）
HK$2.328
有庫存
onsemi, FOD3182 DC Input MOSFET Output Optocoupler, Through Hole, 8-Pin MDIP
  • RS Stock No. 808-8733
  • Mfr. Part No. FOD3182
个（每托盘 2 ）
HK$23.20
最後的 RS 庫存
onsemi, FODM8801AR2 Phototransistor Output Optocoupler, Surface Mount, 4-Pin Mini-Flat
  • RS Stock No. 760-5968
  • Mfr. Part No. FODM8801AR2
个（每托盘 2 ）
HK$11.65
暫時缺貨
onsemi, H11F1TVM DC Input FET Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 862-9283
  • Mfr. Part No. H11F1TVM
个（每托盘 10 ）
HK$6.72
暫時缺貨
onsemi, MOCD208R2M AC Input Phototransistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 806-6109
  • Mfr. Part No. MOCD208R2M
个（每托盘 10 ）
HK$4.58
有庫存
onsemi, FOD817C3S DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin MDIP
  • RS Stock No. 808-8815
  • Mfr. Part No. FOD817C3S
个（每托盘 25 ）
HK$2.348
暫時缺貨
onsemi, MOC3052SR2VM DC Input Phototriac Output Optocoupler, Surface Mount, 6-Pin SMD
  • RS Stock No. 761-3385
  • Mfr. Part No. MOC3052SR2VM
个（每托盘 5 ）
HK$7.92
暫時缺貨
onsemi, MOC3083SR2M DC Input Phototriac Output Optocoupler, Surface Mount, 6-Pin DIP
  • RS Stock No. 761-3394
  • Mfr. Part No. MOC3083SR2M
个（每托盘 5 ）
HK$7.88
有庫存
onsemi, CNY173TVM DC Input Phototransistor Output Optocoupler, Through Hole, 6-Pin DIP
  • RS Stock No. 761-3603
  • Mfr. Part No. CNY173TVM
个（每托盘 10 ）
HK$2.86
有庫存
onsemi, TIL117M DC Input Phototransistor Output Optocoupler, Through Hole, 6-Pin MDIP
  • RS Stock No. 808-0486
  • Mfr. Part No. TIL117M
个（每托盘 25 ）
HK$2.708
有庫存
onsemi, MOCD217R2M DC Input Transistor Output Dual Optocoupler, Surface Mount, 8-Pin SOIC
  • RS Stock No. 761-4530
  • Mfr. Part No. MOCD217R2M
个（每托盘 5 ）
HK$8.00
暫時無法供應
Toshiba, TLP185(GR,E(O DC Input Transistor Output Optocoupler, Surface Mount, 4-Pin SOIC
  • RS Stock No. 769-0262
  • Mfr. Part No. TLP185(GR,E(O
个（每托盘 10 ）
HK$2.196
有庫存
Toshiba, TLP109 Transistor Output Optocoupler, Surface Mount, 5-Pin SOIC
  • RS Stock No. 796-5207
  • Mfr. Part No. TLP109
个（每托盘 5 ）
HK$10.12
有庫存
Toshiba, TLP184(GB,SE(T AC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SO
  • RS Stock No. 799-5264
  • Mfr. Part No. TLP184(GB,SE(T
个（每托盘 25 ）
HK$1.843
有庫存
onsemi, MOC8050M DC Input Darlington Output Optocoupler, Through Hole, 6-Pin MDIP
  • RS Stock No. 806-6092
  • Mfr. Part No. MOC8050M
个（每托盘 25 ）
HK$3.136
有庫存
Vishay, VO617A-4X017T DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMD
  • RS Stock No. 773-0161
  • Mfr. Part No. VO617A-4X017T
个 (以毎袋：10)
HK$2.08
最後的 RS 庫存
Toshiba, TLP3061(S,C,F) DC Input Phototriac Output Optocoupler, Through Hole, 5-Pin PDIP
  • RS Stock No. 769-0293
  • Mfr. Part No. TLP3061(S,C,F)
个（每托盘 5 ）
HK$6.38
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