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Best Choice 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.SING 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.Best Value SING 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.DONGKER 
Optocoupler Isolation Board, Signal Converter Module Voltage Level Current Voltage Converter Module 80KHz 1-Channel Opto ❤Isolation Voltage:more than 3000V . Input Current:50MA(MAX). Operating Current:more than 1MA. Output Maximum Current:50YINETTECH 
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 moTYSQXQ 
24V Converter Module 80KHz Photoelectric Optoisolator 12V PNP NPN Signal Converter PC817 Optocoupler Optoisolator 24V Converter Module 80KHz Photoelectric Optoisolator 12V PNP NPN Signal Converter PC817 Optocoupler OptoisolatorMiZOELEC 
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For example, use the 3V or 5V voltage of the microcontroller to control tSioNS TLP109 Light Coupling into SOP5 optoisolator Coupling 10pieces TLP109 Light Coupling into SOP5 optoisolator Coupling 10piecesGeneric Set of 10 SOP-5 ELM611 ELM611(TA) opto-Isolator optocoupler SMD5 high Package contents:ELM611 SOP-5（10pieces）Reland Sun Reland Sun 10pcs PC827 SOP-8 EL827 TLV827 TLV-827 SOP optoisolator photoelectric coupling 10pcs PC827 SOP-8 EL827 TLV827 TLV-827 SOP optoisolator photoelectric couplingRASTKY RASTKY Solid State Relay 40A Module with Opto-Isolator, CE Certified, Ideal for Machinery Control, for Professional Use [ AND EFFICIENT] Zero starting voltage and Ioff ensures immediate response and efficient operation of this solid state rMingzhe SSR 40AA 40A Solid State Relay Module Dual-Way Input 90- Output 24-480V AC Opto-Isolator LED Display Plastic+Metal [ Design] : Made of plastic and metal, ensures performance in various environments.Reland Sun 10PCS/LOT TLP281 4 CH 4-Channel Opto-Isolator IC Module for Arduino Expansion Board High and Low Level Optocoupler Isola Reland SunFdit Fdit Solid State Relay 40A ACAC, Dual SCR -Pang, OPTOISOLATOR, CERTIFLIFIMY CER [Sustainable design] The elastic structure is successful for the aging test of the fiscal currentZenithAur ZenithAur PWM Driver Module with Opto-Isolator for MCU IO Signal Isolation, a Low Voltage 3V 5V Controlled MOSFET Switch HIGH VOLTAGE SWITCHING: Employs a MOS transistor to let a 3V / 5V low voltage signal manage high voltage devices. This FMiZOELEC 10pcs/lot 6N138 DIP-8 optoisolator photoelectric Coupling 10pcs/lot 6N138 DIP-8 optoisolator photoelectric couplingBaxnore Baxnore Optocoupler Isolation Board, 4 Channel Optocoupler Isolation Module, PLC Level Converter Board, PCB Isolation Bo Stable Performance: The optocoupler isolator guarantees consistent working performance; It ensures that your systems manGeneric TLP759 Light Coupling Patch SOP8 optoisolator photoelectric Coupling 10pcs /LOT Package contents:TLP759 SOP8 (10pieces)MiZOELEC PC827 Light Coupling Patch SOP8 optoisolator photoelectric Coupling 10PCS PC827 Light Coupling Patch SOP8 optoisolator photoelectric Coupling 10PCSDBParts DBParts New for 20PCS 4N25 6Pin Optoisolators Transistor DIP Brand NewDBParts DBParts New for 20PCS DIP-6 MOC3020 Optoisolators Transistor Output Brand NewDBParts DBParts New for 50PCS EL817C PC817 PC817C FL817C FL817 EL817 DIP-4 Optoisolators Transistor Brand NewGikfun Gikfun OPTOCOUPLER DIP-4 PC817C PC817 for Arduino Diy (Pack of 20pcs) AE1143 Gikfun Packing 20pcs OPTOCOUPLER DIP-4 PC817C PC817MUNEFE MUNEFE Signal Converter Board, Power Conversion Board, Channel Optocoupler Board for Ensuring Fast and Stable Signal Con ROBUST DESIGN: This optical isolation module is made of superior materials that enhance its resisting to damage and ensuPOWTAXBJGD 8 Channel Signal Isolation Module - Opto-Isolator Board for Voltage Conversion & Relay - Optocoupler Isolation Board for 3V or 5V interfaces ofPOWTAXBJGD 5V High/Low Computer Components Level Trigger Opto-Isolator 4-Channel Power Motherboards Relay Module POWTAXBJGD POWTAXBJGD 5V High/Low Computer Components Level Trigger Opto-Isolator 2-CH Power Relay Motherboards Module Board Product Name : Opto-isolator 2-Channel Power Relay Module;Coil Voltage : DC 5Vfasient DC 6-30V Digital LED Relay Board Cycle Timing Circuit Switch Timer Delay Trigger Module Micro USB 5V 6-30V input voltage range, support micro USB 5.0V power supply, convenient to useBHHVO BHHVO MRI-05D48 10 Pieces Input 5V DC Optoisolator Interface Relay Module Output 3-48V DC Solid State Relay DC Light Sig RelaysFanmusic Topping HS02 USB 2.0 High Performance Audio Isolator with USB-B and Type C Input Compatible with PCM32bit 768kHz DSD512 Fully lsolated Design: The HS02 has a fully isolated design, which does not introduce new interference when the auxiliarCryfokt Cryfokt 40A Solid State Relay Module with Zero Volt Starting Voltage, Isolation Withstand, for DIY Projects [HIGH PERFORMANCE SOLID STATE RELAY] Dual-way SCR input allows zero starting voltage and Ioff, ensuring reliable operatiXiuganpo Xiuganpo 40A Solid State Relay Module with Zero Volt Starting Voltage, Isolation Withstand, for DIY Projects [HIGH PERFORMANCE SOLID STATE RELAY] Dual-way SCR input allows zero starting voltage and Ioff, ensuring reliable operatiEulbevoli Eulbevoli 40A AC-AC Solid State Relay Module Start from Zero Volt, CE Certified for Home Automation with LED Light Displ 【EFFICIENT PERFORMANCE】Provides reliable dual-way SCR input with zero starting voltage and Ioff, along with Opto-isolatoWisoqu 5V 8 Channel Relay Module for Pico, with Photocoupler Isolation and USB Port Boot Pin Power Isolation: This 8 channel relay module provides stable isolation voltage, the isolated terminal does not require aYechiry Yechiry 40A Dual-Way Solid State Relay Module for Real-time AC-AC Control, CE Certified, Suitable for Industrial Use [HIGH-PERFORMANCE RELAY MODULE] Dual-way SCR input ensures immediate response with zero starting voltage and zero Ioff.POENVFPO POENVFPO Dual-Way SCR Input Solid State Relay Module 40A AC-AC Relay for Commercial Use, 24-480V [ ACTIVATION] Starts at zero volt for quick responseJeffergarden Jeffergarden Solid State Relay AC AC Module, High Isolation Voltage Technology, Real Time Working Status LED Display, 40 Real Time Monitoring: LED display indicates working status, allowing for easy monitoring of relay performance.Independently published Optoelectronics Journal: Blank, Lined Notebook (Softcover) 9780620915540 Advanced Practical Electronics - Circuit and Systems 9780620915540 Advanced Practical Electronics - Circuit and Systems YYJKIK MIDI To TRS Box Electronic Guitar Piano 1-In 5-Out 6.35 Divider MTR-5 Studio Sound Board Professional Digital Mixing Console: The mixer is a dedicated digital mixing console designed for professional productioNewnes Analog Circuits Cookbook