Best Optocouplers in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Gikfun_Official_Store | 9.85 | ✅ | ✅ | ✅ |
Gikfun Packing 20pcs OPTOCOUPLER DIP-4 PC817C PC817
Number of Pin: 4
Pin Pitch: 2.54mm
Optocoupler Output Type: optical transistor
Used widely in computer terminals, system appliances, measuring instruments, registers, copiers, automatic vending machines etc
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BOJACK ELECTRON | 9.89 | ✅ | ✅ | ✅ |
Photocoupler output type: phototransistor
Number of pins: 4
Needle distance: 2.54mm
Package quantity: 50 pieces, packed in a durable and resealable plastic storage box.
Application: PC817 photocoupler is widely used in computer terminals, SCR system equipment, measuring instruments, photocopiers, automatic ticketing, household appliances
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| icstation | 9.76 | ✅ | ✅ | ✅ |
Relay Switch Module: 5pcs 1CH photocoupler isolator. trigger current，DC 12V 1mA，stable performance.
Signal Voltage： High-level trigger with positive phase amplification. The output is equal to the input.
Level Converter： They are good as the level converter(NPN-PNP, PNP-NPN)， and can also be used to input a signal to MCU in isolation or MCU control another device in isolation.
Control Transformer： Optocoupler isolator can be used with other electronic devices to provide isolation between low and high-voltage circuits.
Devices used for microprocessor input/output switching; DC and AC power control; Communications equipment protection; Power supply regulation.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| DONGKER US | 9.18 | ✅ | ✅ | ✅ |
❤Optocoupler Isolation Board Voltage more than 3000V . Input Current:50MA(MAX). Operating Current:more than 1MA. Output Maximum Current:50MA (when input voltage is within the range of 15－20MA)
❤EL817 photoelectric isolator, SCM output level can be used to isolating,anti-interference and protect SCM some circuit when driving motor
❤Isolator High-Level Trigger 80KHz, SCM outpput level is low,and driven module voltage is high
❤Can be applied to inverter,which can invert output the input signal, High Voltage Testing, Current Amplification
❤SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Aloway | 9.89 | ✅ | ✅ | ✅ |
Number of Pin: 4
Pin Pitch: 2.54mm
Isolation Voltage: 5kV
Optocoupler Output Type: optical transistor
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| icstation | 9.76 | ✅ | ✅ | ✅ |
8 Channel: Note: About the board there are two colors, blue and green, they are just different colors, has no effect on the function. This is an 8-channel one-way transmission digital signal converter. It can convert the PNP signal to NPN. Support max conversion frequency 20KHz.
Voltage Level Converter: It is also a DC 24V to 5V voltage level converter board. Support MCU/PLC signal level converting.
LED Indicator: Each channel is equipped with an LED indicator, making it easier to recognize their working status.
Signal Module: The DC power supply is the same as the signal output voltage. For example, if the signal is 3.3V to 5V, then VCC = 5V input, stable performance.
Photoelectric Isolation Module: It can be used for signal isolation, level conversion between single-chip microcomputers, PLC and other signals, PNP, NPN signal, signal level-voltage conversion, and other purposes.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| DONGKER US | 9.23 | ✅ | ✅ | ✅ |
Optocoupler isolation control.
8-Channel input and output.
NPN / PNP (Low/High level) signal output.
Support DC 3.3V~5V Input.
DC 1.8V-24V load voltage.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Mecion | 6.42 | ✅ | ✅ | ✅ |
Product Name: Optocoupler Sharp;Model: PC817
Number of Pin: 4; Pin Pitch: 2.54mm
Size: 9 x 5 x 8mm/0.35" x 0.2" x 0.31" (L*W*H)
Package Content: 30pcs Mounting Photo Coupler
Used widely in computer terminals, system appliances, measuring instruments, registers, copiers, automatic vending machines etc
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Voltage: 5000V
Unit count: 10.0
The Package Weight of the Product is 0.022 kilograms
Package Dimensions: 10.16 H x 2.54 L x 5.08 W (centimeters)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| SING F LTD | 9.83 | ✅ | ✅ | ✅ |
Feature: Integrated circuits have the advantages of small size, light weight, small solder joints, long life, high reliability, and good performance.
Application: PC817 photocoupler is widely used in computer terminals, timers, osciallators, dual opamps, quad opamps, comperators, audio amplifiers, echo processors, current mode controllers, darlington arrays, voltage charge pump,etc.
Low input: Low input bias current, low input offset voltage and offset current. Common mode input voltage range, including ground.
Durable material: The chip is made of metal oxide semiconductor material, which has good thermal stability and long service life.
Package includes: 50pcs PC817C 2.54mm pitch 4-pin DIP-4 transistor output optocoupler.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bridgold Direct | 9.84 | ✅ | ✅ | ✅ |
General Purpose Switching Circuits
Interfacing and coupling systems of different potentials and impedances
Regulation Feedback Circuits
Monitor & Detection Circuits
NOTE:Exposure to absolute maximum rating conditions for extended periods may affect device reliability
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wu Jinkun | 9.68 | ✅ | ✅ | ✅ |
Current transfer ratio(CTR: MIN. 50% at I F = 5mA ,VCE=5V)
High isolation voltage between input and output ( Viso=5000V rms )
Signal transmission between circuits of different potentials and impedances.
System appliances, measuring instruments.
Registers, copiers, automatic vending machines,Electric home appliances, such as fan heaters, etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bridgold Direct | 9.83 | ✅ | ✅ | ✅ |
Supply Voltage:international standard
Type:Integrated Circuits
4 pins, dual row, 2.54mm pitch.Used widely in computer terminals
Size : 8 x 4 x 7mm/0.3" x 0.2" x 0.3" (L*W*H)
Material : Plastic, Metal
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bridgold Direct | 9.83 | ✅ | ✅ | ✅ |
Low input current requirements – 0.5mA
High output current – 60mA
High common mode noise line receiver
High current transfer ratio – 2000% typical
NOTE:Exposure to absolute maximum rating conditions for extended periods may affect device reliability
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Bridgold | 3 |
| Dongker | 2 |
| Is | 2 |
| Bojack | 1 |
| Cylewet | 1 |
| Gikfun | 1 |
| Lite On | 1 |
| Mecion | 1 |
| Sing F Ltd | 1 |
| Ximimark | 1 |
We've carried out a comprehensive analysis of 474 reviews on optocouplers, using our selection criteria to identify the best options in the electronic components. Our findings reveal that most customers typically select optocouplers priced around $10.04, with top brands including bojack, noyito, is, bridgold, dongker, gikfun, viagasafamido, bestol and mecion and sing f ltd
Our team of expert editors reviewed these high-quality items and handpicked the top 14 optocouplers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the electronic components category. These include bojack electron, noyito technologies, icstation, bridgold direct, dongker us, gikfun_official_store, janfcal, bestol and mecion and sing f ltd .
We are dedicated to assisting our users in finding the right optocouplers Products based on their needs, saving them considerable time when choosing which optocouplers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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