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10 Best optocouplers of 2026
Explore top picks
Best Choice1
EC BuyingEC Buying 5Pcs 3-5V Optocoupler Isolation Board Optoelectronic Isolator EL817 PC817 Card Rail Bracket Input 3-5 V Optocoupler Isolation Module 1 Channel Opto PNP NPN Signal Converter
9.9Exceptional
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Value for Money2
IS5 PCS Optocoupler Isolation Board, Icstation DC 12V Optocoupler Isolation Module EL817 1 Channel Opto PNP NPN Signal Converter, Isolator High-Level Trigger 80KHz
9.7Exceptional
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3
BOJACKBOJACK PC817 OPTOCOUPLER DIP Installation PC817C 2.54 mm Pitch 4-pin DIP-4 (Pack of 50 pcs)
Key specs-
Output:Phototransistor
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Number of Pins:4
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Needle Distance:2.54mm
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Package Quantity:50 pieces
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Output Current:N/A
9.5Excellent
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4
NOYITONOYITO 1-Channel PC817 Optocoupler Isolation Module Optoelectronic Isolator Signal Isolation and Anti-Interference 3-5V 12V 24V (Pack of 2) (3-5V)
9.4Excellent
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5
TAODANTAODAN 50pcs PC817 Optocoupler DIP 2.54 mm Pitch 4-pin DIP-4 IC Chipset
9.3Excellent
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6
AOICRIEAOICRIE 4pcs PC817 4 Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module 817 Voltage Isolation Module
9.2Excellent
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7
CHANZONChanzon 50pcs PC817 Optocoupler PC817C DIP Installation DIP-4 50%-600% Transfer Ratio 4pin Optocouple Compatible with EL817C/LTV817C/FL817C/el817 Optical Isolator
9.0Excellent
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8
JESSINIEJESSINIE 3Pcs 1Channel AC Optocoupler Module 220V Voltage Detect Optocoupler Isolation Microcontroller TTL Level 3V-5V
8.8Very Good
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9
AOICRIEAOICRIE 2pcs PC817 8 Channel Optocoupler Isolation Board Voltage Converter Module 3.6-30V Photoelectric Isolated Module 817 Voltage Isolation Module
8.7Very Good
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10
DONGKERDONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module
8.5Good
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