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Best Choice Madifei AU 
3PCS PC817 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insulatio 3PCS PC817 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulatioSenzooe 
2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insul 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulBest Value EMSea 
EMSea 2Pcs Optical Isolator Module Voltage to Current Converter Module Input Optoisolator 12V 80KHz 1 Channel PC817 EL81 It is made of premium material, which is not easy to wear and comfortable to touch.Senzooe 
2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insul 2PCS PC817 2 4 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsuleMagTech 
eMagTech 50PCS PC817 Optocoupler in-Line 2.54mm Pitch 4-pin DIP-4 Mounting Transistor Output Opticalcoupler for Computer Feature : Integrated circuits have the advantages of small size, light weight, small solder joints, long life, high reliReland Sun 
5PCS 5V 9V 12V 24V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger (5V) 5PCS 5V 9V 12V 24V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger27% Off EC Buying 
EC Buying 5Pcs 3-5V Optocoupler Isolation Board Optoelectronic Isolator EL817 PC817 Card Rail Bracket Input 3-5 V Optoco 1-way optocoupler isolation module with EL817 features, providing input voltage of DC 3V ~ 5V and output voltage suitablYINETTECH YINETTECH 4Pcs VTL5C3 Opto-Coupler VTL5C DIP-4 Audio Opto-Coupler (Vactrols) Linear Opto-Isolator Suitable for Many Guit Applications: Commonly used in tremolo and vibrato circuits within guitar pedals and amplifiers to create distinctive moCreate idea Create idea 5pcs 817 2-Channel Optocoupler Isolation Voltage Control Switching Module 3.6-24V Driver Photoelectric Isola This module is used when it is necessary to isolate the control in actual work and voltage conversion.It can realize 3.3Reland Sun Reland Sun 10pcs 4N38 4N37 4N36 4N35 4N33 4N32 4N27 4N28 4N25 4N26 DIP-6 IC Optocoupler (4N26) 10pcs 4N38 4N37 4N36 4N35 4N33 4N32 4N27 4N28 4N25 4N26 DIP-6 IC OptocouplerLEVANLIGHTING LEVANLIGHTING 2pcs 5V 1 Channel Relay Module with OPTO Isolated High and Low Level Trigger | Relay Switch The module adopts genuine relays and normally open interfaces. Maximum load: AC 250V/10A、DC 30V/10A.Reland Sun 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion Board (12V) 5pcs 5V 12V 24V 2 Channel DC Relay Module with Optocoupler High/Low Level Trigger Expansion BoardEC Buying EC Buying 5Pcs 24V Optocoupler Isolation Board Optoelectronic Isolator EL817 PC817 Card Rail Bracket Input 3-5 V Optocou 24V optocoupler isolation board with EL817 features, providing a wide input signal voltage range of DC1.8V-24V and a maxReland Sun Reland Sun 10pcs 4N38 4N37 4N36 4N35 4N33 4N32 4N27 4N28 4N25 4N26 DIP-6 IC Optocoupler (4N35) 10pcs 4N38 4N37 4N36 4N35 4N33 4N32 4N27 4N28 4N25 4N26 DIP-6 IC OptocouplerMingzhe 2 Channel Relay Module Optocoupler Isolation High Low Level Trigger for Home Automation (5V) [Optocoupler Isolation] Smt optocoupler provides strong driving ability and stability.domoi domoi 50Pcs PC817 EL817C LTV817 PC817-1 DIP-4 OPTOCOUPLER for Best color:blackHOBBYIN HOBBYIN 5PCS 1 Channel Optocoupler Isolation Module,DC12V Optocoupler Isolation Module EL817 Opto PNP NPN Signal Convert Reliable Optocoupler Isolation: The 5 PCS Optocoupler Isolation Board is designed to provide reliable signal isolation aPhipps Electronics 5v 2 Channel Relay Module with Optocoupler 5V 2 Channel Relay Module with OptocouplerYIQFOCA 5 Set 3V 1 Channel Relay Power Switch Board, High Level Driver Optocoupler Module Isolated Drive Control Board for ESP82 You will recevie 5Pcs 3v Relay 1 Channel power switch module compatible with 10A 250VAC and 10A 30VDC load.5pcs * 2.5 mmMadifei AU 5Pcs 12V 8 Channel Relay Module Interface Board with Optocoupler 5Pcs 12V 8 Channel Relay Module Interface Board with OptocouplerMiZOELEC 10pcs/lot MOC3063 MOC3063-M EL3063 DIP-6 Driver Output Optocoupler ICS 10pcs/lot MOC3063 MOC3063-M EL3063 DIP-6 Driver Output Optocoupler ICSDIANN DIANN 10pcs DC 5V Relay Module 1 Channel Relay Board with Optocoupler Support High/Low Level Trigger Relay Board Maximum Load: AC 250V/10A; DC 30V/10A With Power and Relay Action Indicator;Trigger Current: 5mA13% Off Domary 3 Channel Relay Module High Voltage Relay Board Isolated Optocoupler High Low Level Control for Home Automation (5v (3.3 [Convenient Interface Design] With a user-friendly interface, all connections can be easily made through terminal wiringRakstore Rakstore 2pcs 1-Bit AC 220V Optocoupler Isolation Module 24V Level Voltage Detect Testing Board Module for PLC Microcont Function: Test whether the AC 220V exists；Board size: 73mm*15mmGikfun Gikfun OPTOCOUPLER DIP-4 PC817C PC817 for Arduino Diy (Pack of 20pcs) AE1143 Gikfun Packing 20pcs OPTOCOUPLER DIP-4 PC817C PC817Oiyagai Oiyagai 5pcs LM393 Chip Motor Measuring Comparator Speed Sensor Module Slot Type IR Optocoupler for MCU Arduino Product Name : Speed Sensor Module;Working Voltage : DC 3.3-5VPerGar Optocoupler Isolation Board 8 Channel Driver Photoelectric Isolated Module 817 3.6 30V Achieve Unparalleled Voltage Conv DRIVE VARIOUS OCCASION: Optical isolation has strong interference resistant ability, which can drive high power transistReland Sun 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler Protection (12V) 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler ProtectionShutao 2Pcs PC817 8 Channel Optocoupler Isolation Board 3.6-30V Driver Photoelectric Isolated Module Voltage Converter Adapter 8 channel optocoupler isolation board is used when it comes to the need for isolation control and voltage conversion.Zopsc Zopsc 4 Channel Voltage Converter Optocoupler Isolated Board Adapter Module, 3.3V/5V to 3.6V/24V, Strong Anti-Interferen 【Easy for Use】It can realize 3.3V or 5V to control the interface of 3.6--24V voltage level. After the control terminal iMadifei AU 5Pcs 5V 8 Channel Relay Module Interface Board with Optocoupler 5Pcs 5V 8 Channel Relay Module Interface Board with OptocouplerCHENBO 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler for Arduino The module uses genuine quality relay, normally open interfacesECSiNG ECSiNG 2Pcs 1 Channel 12V Relay Module with Optocoupler Isolation Expanding Board Support Low-Level Trigger Or High-Leve Our relays have a fault-tolerant design, even if the control line is broken, the relay will not operate, making it saferCHENBO 2 pcs 5V 2 Channel DC 5V Relay Module with Optocoupler High/Low Level Trigger Expansion Board for Arduino Maximum load: AC 250V/10A, DC30V/10AEMSea EMSea 5pcs 3V Relay Power Switch Board 1 Channel Optocoupler Relay Module Isolated Drive Control Board for ESP8266 Devel The 3V/3.3V power relay module supports optocoupler insulation control.EMSea EMSea 50x Op Amp Timer Darlington Optocoupler Low Input IC Assortment Kit 10 Type Package includes: In total 50pcs 10 size, each size per 5pcs. You will get LM324, LM358, LM386, LM393, UA741, NE5532, NEVikye 5pcs 1 Channel Optocoupler Module, 220V AC Green 5pcs Optocoupler Isolation Modules Isolation Module Support PLC 5PCS IN 1 SET: Including 5pcs optocoupler isolation modules, small and compact, easy to install and replace, has a wideVaguelly Vaguelly 5v Single-Channel Relay Module Optocoupler Isolation 12pcs Pack High/Low Level Trigger Support Flexible triggering: high and trigger support provides versatile control options for users,one way relay module,high pow18% Off ELEGOO ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 This relay module is 5V active low. Relay output maximum contact is AC250V 10A and DC30V 10A.Shanrya AC Optocoupler Module, Optocoupler Module 3P Terminal Connected to The Microcontroller Input for Workshop for Laboratory Reland Sun Reland Sun NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectio NPN Output Four-Way optocoupler Isolation PLC Level Voltage Conversion Board 1.8V 3.3V 5V 12V 24V Unidirectional TransmiReland Sun IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module for Motor Test Reland SunReland Sun 5V 8 Channel Relay Module With Optocoupler 5V 8 Channel Relay Module With OptocouplerReland Sun 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler Protection (5V) 5V 12V 24V 8 Channel Relay Module Interface Board for 51/AVR/AVR/ARM with Optocoupler ProtectionGeneric 4 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control Board Maximum 250V 10A and DC30V 10A.Phipps Electronics 5v 1 Channel Low Level Relay Module with Optocoupler 5V 1 Channel Low Level Relay Module with OptocouplerSunFounder SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for Arduino UNO R3 MEGA 2560 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver CurrentGeneric DC 12V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger Fault-tolerant design, even if the control line is broken, the relay will not move.1PZ 1PZ DCR-M70 DC 5V 8 Channel Relay Module Board Solid State Relay with Optocoupler Replacement for Arduino UNO R3 MEGA 25 【Compatibility】 Suitable for all kinds of electronic devicesAzuocn 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR 12V 16-Channel Relay interface board, and each one needs 15-20mA Driver CurrentRakstore Rakstore 4pcs TLP281 4-Channel Opto-Isolator IC Module Expansion Board High and Low Level Optocoupler Isolation Function: Use low level to control high level. For example, use the 3V or 5V voltage of the microcontroller to control tDollaTek DollaTek High-Speed Isolation USB to TTL Serial Module Power Isolation Optocoupler Isolation Onboard 500mA self-recovery fuse and 5V isolated power module to protect your computer from damageBognajin Bognajin Optical Isolation Module Limit Switching Frequency 20kHz 12V to 3.3V 8 Channel Optocoupler PLC Signal Converter 【Versatile Input Options】: Supports common anode, common cathode, and differential signal inputs.TENOL TENOL 2X EL357N-C Optocoupler Isolation Module Convert 24V A mini optocoupler isolation, level conversion module.Shutao 3PCS PC817 4 Channel Optocoupler Isolation Board Voltage Converter 3.6-30V Driver Photoelectric Isolated Module Onboard 4 channel 817 are independent: can achieve different voltage control at then same timeHALJIA HALJIA 3PCS 2 Channel Relay Module - 5V Relay Board Expansion Board High Performance Accessories with Optocoupler for Ra The relay uses high quality material, single pole and double throw. a common end, a normal open end and a normal closedShutao Shutao 5PCS PC817 2 Channel Optocoupler Isolation Board Voltage Converter 3.6-30V Driver Photoelectric Isolated Module Onboard 2 channel 817 are independent: can achieve different voltage control at then same timeRakstore Rakstore 2pcs 1 Channel Way Optocoupler Isolation Module PC817 EL817 12V Photoelectric Isolator Rail Holder PLC Drive Mo Input signal voltage: DC 12V；Output signal voltage: DC 1.8V-24VReland Sun DC 5V 12V 24V 1 Channel Relay Module 30A with optocoupler Isolation high and Low Level Trigger Relay Module (24V) Reland SunAswalling Aswalling Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repai After many hardware updates and parameter modifications, the current generation is very easy to use. As long as the indiAswalling Aswalling Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repai After many hardware updates and parameter modifications, the current generation is very easy to use. As long as the indiTEHAUX TEHAUX 12pcs State Relay Module with Optocoupler Isolation for Voltage Controlled Applications User Friendly Terminals D Optocoupler isolation: features optocoupler isolation to protect the control circuit and the controlled circuit, ensurinMipcase Mipcase 12pcs Relay Module with Optocoupler Isolation 5v Power Relay Forward Reverse for Marine Control Optocoupler safety: features optocoupler isolation to protect the control and controlled circuits,light control relay moKOMBIUDA KOMBIUDA 12pcs Optocoupler Isolated Relay Control Module for Forward Reverse and Light Control High Low Level Trigger Ea Simple connections: user friendly terminal connections make wiring and convenient,optocoupler module,isolation module haSING F LTD SING F LTD 4X 1-Channel PC817 Optocoupler Isolation Module (3-5V) Suitable for Photoelectric Isolator Signal Ssolation 1-Channel PC817 Optocoupler Isolation module adopts 5.0 pitch screw terminals for easy wiring.Binxind Binxind 2X Optocoupler Tester Kit 555 Application Circuit Board Practice Welding DIY Electronic Spare Parts Kit Without Optocouplers, also known as optocouplers, are commonly used electronic components that are difficult to test with ordinaSING F LTD SING F LTD 4X 1-Channel PC817 Optocoupler Isolation Module (12V) Suitable for Photoelectric Isolator Signal Ssolation an 1-Channel PC817 Optocoupler Isolation module adopts 5.0 pitch screw terminals for easy wiring.20% Off ELEGOO ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 5V 8-Channel Relay interface board, each one needs about 70mA Driver Current; Equiped with high-current relay, AC250V 10Beufee Optocoupler, 4 Channel Optocoupler Isolation Board Optocoupler Isolation Module Optocoupler PC 817 Optoisolator Module PRACTICAL: Optocoupler can realize 3.3V or 5V to control the interface of 3.6 to 24V voltage. After the control terminalGeneric Imported TLP2745 SOP6 Patch Drive optocoupler optocoupler SOP-6 Package contents:TLP2745 SOP6 (1pieces)UIOTEC DC 12V 2CH 2 Channel Isolated Optocoupler High/Low Level Trigger Relay Module** MiZOELEC 10pcs/lot DIP optocoupler optocoupler 4N26 EL4N26 DIP6 10pcs/lot DIP optocoupler optocoupler 4N26 EL4N26 DIP6MUNEFE MUNEFE Optocoupler Isolation Board, 24V to 5V PLC Level Voltage Converter Module, 4 Channel VOLT CONVERSION CAPABILITY: The MUNEFE Optocoupler Isolation Board is capable of converting 24V to 5V, ensuring stable wMellisso Mellisso Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Before testing, the motherboard must be powered off and then discharged. Testing cannot be carried out while the power iDollaTek DollaTek 2pcs DC 12V Time Delay Relay Module Car Auto Delay Timer Control Switch with Optocoupler Signal Trigger Adjusta Can be used in robots, car light delays, intelligent product development, automation equipment, PLC development, smart hLabymos Labymos 2-Channel 30A Relay d Module Optocoupler Isolation High/Low Trigger Using optocoupler isolation, strong -jamming capability and stable performance.Justivana Justivana Optocoupler Tester Optocoupler Detection Tool Optocoupler Online Module Optocoupler Electronic Repair Tool Before testing, the motherboard must be powered off and then discharged. Testing cannot be carried out while the power iReland Sun 5PCS/LOT IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module for Motor Test Reland SunYsyaxsyt Ysyaxsyt 2 PCS 5V One Channel Relay Module Relay Switch with Optocoupler Isolation Support High Low Level Trigger 2.Fault-tolerant design, even if the control line is broken, the relay not operate;Smartmiao AU 5PCS 12V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger 5PCS 12V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level TriggerMUNEFE MUNEFE Optocoupler Isolation Board, 8 Channel PLC Voltage Detection Module AC for DIY HIGH-QUALITY MATERIALS FOR DURABILITY: The MUNEFE Optocoupler Isolation Board is crafted using premium PCB materials, enJectse 8 Channel Relay Module,PLC Relay Trigger Module Controller with Optocoupler Isolation Blue Board,for 51/AVR/ARM Platform Support all microcontroller control. Industrial field; PLC control; home intelligent control.Rivermidfish AU 100PCS PC817 Optocoupler in-Line 2.54mm Pitch 4-pin DIP-4 Mounting Transistor Output Opticalcoupler 100PCS PC817 Optocoupler in-Line 2.54mm Pitch 4-pin DIP-4 Mounting Transistor Output OpticalcouplerJimcat star 2PCS 8 Channel DC 5V Relay Module Board with Optocoupler 2PCS 8 Channel DC 5V Relay Module Board with OptocouplerGump's grocery Gump's grocery PC817 4-Channel Voltage Converter Module Optocoupler Isolation Driving Module 1.Driving Port Signal Voltage:3.6-24VJimcat star 2PCS PC817 2 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insulatio 2PCS PC817 2 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulatioSluffs 1 Channel Optocoupler Isolation Board Voltage Converter Adapter Module,Opto Isolator Module Voltage Detection for PLC AC [DETECT OUTPUT TTL LEVEL]: This Opto Isolator Module allows for the detection of output TTL level by a microcontroller.Jimcat star 2PCS PC817 4 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insulatio 2PCS PC817 4 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulatioJimcat star 8 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler 8 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with OptocouplerGeneric ACPL-C870 HCPL-C870 SMD optocoupler Isolator optocoupler Driver chip C870 SOP-8 Package contents:ACPL-C870 SOP-8(1pieces)Phipps Electronics 12V 8 Channel High/Low Relay Module with Optocoupler 8-channel relay module for controlling high-voltage devices.MachineMid 10pcs/lot P152 TLP152 optocoupler SOP5 Optical Isolator SMD Optocouplers 10pcs/lot P152 TLP152 optocoupler SOP5 optical isolator SMD OptocouplersMiZOELEC 20pcs/lot Optocouplers HCPL-3120 HCPL3120 HP3120 A3120 DIP8 20pcs/lot Optocouplers HCPL-3120 HCPL3120 HP3120 A3120 DIP8Jimcat star 3PCS 4 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control Board 3PCS 4 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control BoardJimcat star 2PCS PC817 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light Insulatio 2PCS PC817 8 Channel Optocoupler Insulated Circuit Board Voltage Converter Adapter Module 3.6-30V Driver Light InsulatioHyuduo 3 Channel Optocoupler Isolation Module, Voltage Detection Board Photoelectric Isolated, AC with Connection PLC24V Level [Compact Design] Lightweight and compact size for easy installation in minutes.SioNS 10pieces MOC3081S MOC3081SR2M SOP-6 Optocoupler MOC3081 10pieces MOC3081S MOC3081SR2M SOP-6 Optocoupler MOC3081TENOL TENOL High-performance Optocoupler Isolation Module for 24V Input, NPN Output, 3.3V Size: 7.4 x 25mm/0.3 x 1inchTeyleten Robot Teyleten Robot 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for POPETPOP POPETPOP 12pcs Electromagnetic Relay Module with Optocoupler Isolation Purpose Control Line Switch Kit for Electronics D Durable materials: made from durable materials, ensuring stability and reliability for longterm use without easy damage,