Best Optocouplers Deals Online in the UK (25 Deals Found)

Last Updated - 15/12/2025 Sort By:

Best Choice
JZK

New
JZK 50pcs PC817C optocoupler, 2.54mm DIP-4 4 pins mounting photo coupler, high density mounting type optocouplers IC, op
These optocouplers are industry standard and very easy to use. Great for either matrix, strip or bread board use and che

£4.79
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Hailege

New
Hailege 2pcs PC817 2 Channel Optocoupler Isolation Module 817 Voltage Isolation Voltage Converter Module 3.6-30V Photoel
The jumper cap can be used to determine whether the output terminal is high potential output or low output.

£5.49
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New
240V 220V AC Mains Sensor opto-isolator optoisolator optocoupler 5V 3.3V Arduino
220V Live to L. 220V Neutral to N.

£6.55
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BOJACK

New
BOJACK PC817 OPTOCOUPLER DIP installation PC817C 2.54mm pitch 4-pin DIP-4 (Pack of 50 pcs)
Photocoupler output type: phototransistor

£6.99
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New
4 channel 12v to 3.3v 5v PC817 input optoisolator optocoupler with connectors
G4 channel 12v to 3.3v or 5v input optoisolator optocoupler for Arduino RPi ARM PIC. 4 Channel Optoisolator. 12V DC inpu

£6.95
The Lord of the Tools

New
The Lord of the Tools 4x 1-Channel PC817 Optocoupler Isolation Module (3-5V) Suitable for Photoelectric Isolator Signal
1-Channel PC817 Optocoupler Isolation module adopts 5.0 pitch screw terminals for easy wiring.

£9.89
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JZK

New
JZK PC817 4 Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated M
This module will be used when isolated control and voltage conversion are required in actual work.

£3.99
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New
PC817, 8 4 2 channel opto-isolator breakout for Arduino optoisolator optocoupler
🔶 PC817 Optocoupler Module — 2, 4 or 8 Channel Opto-Isolator — For Arduino, ESP8266, ESP32, Raspberry Pi. IC: PC817 opt

£3.79
Youmile

New
Youmile 50 pcs PC817 Transistor Output Optocoupler PC817C DIP-4 2.54mm Pitch + 50 pcs Round DIP IC Chip Socket 2.54mm Du
What it does: PC817 is a single channel dual in-line package optocoupler, very suitable for various electronic experimen

£8.89
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New
5 x 4N35 Opto-isolator Photo Optocoupler Transistor IC DIP 6 5PCS
The 4N35 Opto-isolator is a general-purpose 6 pin DIP phototransistor optocoupler ideal for isolating different sections

£3.99
Hailege

New
Hailege 2pcs PC817 8 Channel Optocoupler Isolation Module 817 Voltage Isolation Voltage Converter Module 3.6-30V Photoel
The jumper cap can be used to determine whether the output terminal is high potential output or low output.

£8.49
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Gikfun

New
Gikfun PC817C PC817 Dip-4 Optocoupler for Arduino DIY (Pack of 20) AE1143
Gikfun Packing 20pcs OPTOCOUPLER DIP-4 PC817C PC817

£6.28
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New
PC817 OPTOCOUPLERS OPTO ISOLATORS IC.
This SMD PC814 Optocoupler is a surface mount device with four pins. It provides optical isolation for integrated circui

£3.99
XPOOP

New
XPOOP 100 Pcs Optocoupler, PC817C Optocoupler 4 Pin Mounting Optocoupler 2.5mm Pitch Coupler, Optocoupler PC817C, Optoco
Material 🌈 4 Pin mounting optocoupler is made of high-quality PC material, small and lightweight, strong impact resista

£6.99
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New
SMD Optocouplers PC355 to PC817 PS2501 to PS2705 TLP121 TO TLP621 Surface mount

£2.62
DONGKER

New
Optocoupler Isolation Board, 8CH Optocoupler Isolation Module DC 3.3V 5V 8-Channel PNP NPN Low High Level Output Signal
Optocoupler isolation control.

£9.99
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New
PC817, 4 channel opto-isolator breakout for Arduino optoisolator optocoupler ST
It uses the PC817 optoisolator. Great for use in noisy circuits where signal lines require electrical isolation. 1 x Mod

£4.95
New
4N25 Optocoupler Photocoupler - Pack of four

£2.85
New
10x EL817C EL817 PC817 Transistor Output Optocoupler I.C.- UK STOCK - FAST POST.
10x EL817C EL817 PC817 Transistor Output Optocoupler I.C. 10 x EL817C DIP EL817 PC817 Optocoupler IC.

£3.89
New
MOC3021 OPTO COUPLER IC
MOC3021 ISO IC. OPTO COUPLER IC.

£1.40
New
50Pcs PC817 PC817C PC817/C PC817 SOP 4 Precise SMD Optocoupler CF
Your support will keep us moving forward forever. AFRICA : All countries in Africa;.

£1.91
New
6N138, Vishay DC Input Darlington Output Optocoupler (PACK OF 3)
The 6N138 is optimized for TTL applications, featuring a minimum current transfer ratio of 300% at an LED current of 1.6

£3.99
New
6N137 FAIRCHILD OPTOCOUPLER X1PC
6N137 FAIRCHILD. OPTOCOUPLER LOGIC 2.5KV.

£0.99
New
PC817, 2 channel opto-isolator breakout for Arduino optoisolator optocoupler ST
It uses the PC817 optoisolator. Great for use in noisy circuits where signal lines require electrical isolation. 1 x Mod

£3.95
New
5 x PC817 Optocoupler Phototransistor Output 4-Pin DIP EL817 LTV817 Compatible
Compatibility: PC817X, EL817, LTV817 series. 5 x PC817 Optocoupler ICs (DIP-4). Each device features an infrared emittin

£3.59

25 Optocouplers deals are available from: Amazon, eBay stores, starting from £0.99.
The biggest discount we found is 10%% on JZK 50pcs PC817C optocoupler, 2.54mm DIP-4 4 pins mounting photo coupler, high density mounting type optocouplers IC, opto coupler, photoelectric coupler at Amazon.
The lowest price we found is £0.99 while the highest is £9.99.
Prices for the best Optocouplers deals average at £5.09.
Last updated on December 15, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Optocouplers.