{"id":87772,"date":"2021-04-25T17:40:04","date_gmt":"2021-04-25T17:40:04","guid":{"rendered":"https:\/\/romanceuniversity.org\/top-10\/shirts-with-zippers-in-the-back-2\/"},"modified":"2021-07-22T06:36:01","modified_gmt":"2021-07-22T06:36:01","slug":"3-3v-relay-module","status":"publish","type":"post","link":"https:\/\/romanceuniversity.org\/top-10\/3-3v-relay-module\/","title":{"rendered":"3.3V Relay Module"},"content":{"rendered":"<h1 style=\"text-align: center\">The Best 3.3V Relay Module of 2025 &#8211; Reviews &amp; Buying Guide<\/h1>\n<p><em>After hours researching and comparing all models on the market, we find out the Best 3.3V Relay Module of 2025. Check our ranking below.<\/em><\/p>\n<p style=\"text-align: center\"><strong><span style=\"font-size: 13pt\">2,819 Reviews Scanned<\/span><\/strong><\/p>\n<p style=\"text-align: center\">\n<div class=\"aawp\">\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B07XGZSYJV\" data-aawp-product-id=\"3126387\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"Teyleten Robot DC 1 Channel Optocoupler 3V\/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V\/3.3V Relay Module for Arduino  Pack of 5\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #1<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B07XGZSYJV?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"Teyleten Robot DC 1 Channel Optocoupler 3V\/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V\/3.3V Relay Module for Arduino (Pack of 5)\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41CYdAhLKPL._SL160_.jpg\" alt=\"Teyleten Robot DC 1 Channel Optocoupler 3V\/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V\/3.3V Relay Module for Arduino (Pack of 5)\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B07XGZSYJV?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"Teyleten Robot DC 1 Channel Optocoupler 3V\/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V\/3.3V Relay Module for Arduino (Pack of 5)\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            Teyleten Robot DC 1 Channel Optocoupler 3V\/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V\/3.3V Relay Module for Arduino (Pack of 5)        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>Original Songle Relay<\/li><li>30VDC 250VAC Load\uff1aThe power switch is compatible with 10A 250VAC and 10A 30VDC load.<\/li><li>Optocoupler Isolator:3V\/3.3V power relay module supports photocoupler isolation control.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B07XGZSYJV?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B0BG2F7349\" data-aawp-product-id=\"4682452\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"JESSINIE 5Pcs 1 Channel DC 3V\/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #2<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B0BG2F7349?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"JESSINIE 5Pcs 1 Channel DC 3V\/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/411jT11Ac3L._SL160_.jpg\" alt=\"JESSINIE 5Pcs 1 Channel DC 3V\/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0BG2F7349?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"JESSINIE 5Pcs 1 Channel DC 3V\/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            JESSINIE 5Pcs 1 Channel DC 3V\/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>Indicator with output signal<\/li><li>The signal input port can be connected to the IO port of the single chip microcomputer, and the high-level signal is driven<\/li><li>Dual power supply selection design has strong anti-interference ability and high reliability of photoelectric isolation protection<\/li><li>Onboard 3V,10A\/250VAC; 10A\/30V DC relay, which can be continuously closed for 100,000 times, with diode laxative protection, short response time<\/li><li>The external connection adopts rotary crimping terminal to make the connection firmer, With fixed mounting holes for easy installation<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B0BG2F7349?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B08W3XDNGK\" data-aawp-product-id=\"3126388\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #3<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B08W3XDNGK?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51D9I-rIGUL._SL160_.jpg\" alt=\"AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B08W3XDNGK?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>\u301030VDC 250VAC Load\u3011 Equiped with high-current relay, AC250V 10A ; DC30V 10A, each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground.<\/li><li>\u3010High Level Trigger\u3011The relay module is triggered by high level signal, which can be input from microcontroller IO.<\/li><li>\u3010 3V\/3.3V power relay module\u3011- This Relay Board provides a single relay that can be controlled by any 3V\/3.3V digital input from your microcontroller IO.<\/li><li>\u3010Wide Application\u3011- These 3v relay board works well with ARM \/PIC \/AVR \/MCU\/Raspberry\/CNC machine\/ PS4\/3.3V \/NodeMCU\/ ESP8266 module etc.<\/li><li>\u3010Long Life\u3011 - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B08W3XDNGK?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B0D8PSX9WL\" data-aawp-product-id=\"5763894\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"MTDELE 6Pcs DC 3.3V Relay Module 1 Channel Optocoupler Module 3V\/3.3V Relay Isolated Drive Control Board Compatible with for Arduino\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #4<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B0D8PSX9WL?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"MTDELE 6Pcs DC 3.3V Relay Module 1 Channel Optocoupler Module 3V\/3.3V Relay Isolated Drive Control Board Compatible with for Arduino\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51vhuoBsWPL._SL160_.jpg\" alt=\"MTDELE 6Pcs DC 3.3V Relay Module 1 Channel Optocoupler Module 3V\/3.3V Relay Isolated Drive Control Board Compatible with for Arduino\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0D8PSX9WL?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"MTDELE 6Pcs DC 3.3V Relay Module 1 Channel Optocoupler Module 3V\/3.3V Relay Isolated Drive Control Board Compatible with for Arduino\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            MTDELE 6Pcs DC 3.3V Relay Module 1 Channel Optocoupler Module 3V\/3.3V Relay Isolated Drive Control Board Compatible with for Arduino        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>3.3V Relay Module\uff1aCompatible with for Power Switching LED Lights Small Motors Circuit Isolation Signal Conversion<\/li><li>Size\uff1a70*17*20mm<\/li><li>Voltage: DC 3V\/3.3V<\/li><li>Load\uff1a10A 250VAC\uff1b10A 30VDC<\/li><li>Commodities include\uff1a6Pcs 3V\/3.3V Relay Module\uff1b1Pcs Screwdriver<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B0D8PSX9WL?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B0F3TM3RZ6\" data-aawp-product-id=\"5763895\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"Teyleten Robot Relay Module HFD4\/3-S Thin 3.3 5V STM32 51 Microcontroller 3pcs\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #5<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B0F3TM3RZ6?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"Teyleten Robot Relay Module HFD4\/3-S Thin 3.3 5V STM32 51 Microcontroller 3pcs\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41fSdSBbYqL._SL160_.jpg\" alt=\"Teyleten Robot Relay Module HFD4\/3-S Thin 3.3 5V STM32 51 Microcontroller 3pcs\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0F3TM3RZ6?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"Teyleten Robot Relay Module HFD4\/3-S Thin 3.3 5V STM32 51 Microcontroller 3pcs\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            Teyleten Robot Relay Module HFD4\/3-S Thin 3.3 5V STM32 51 Microcontroller 3pcs        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>1.The relay supports wide voltage supply, the range is 3.3V-6V.<\/li><li>2.The maximum load current of the controlled terminal of the relay is 2A@30V, 0.5A@220V (more than 60V, it is recommended to add an insulation protection box to prevent electric shock).<\/li><li>3. Small size, adapted to signal switching or on-off control, signal insertion loss <0.3dB@1KMHZ, also adapted to small power load switching or on-off control.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B0F3TM3RZ6?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B09XTZSG53\" data-aawp-product-id=\"4682453\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"AEDIKO 6pcs 1 Channel Relay Module DC 3V\/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #6<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B09XTZSG53?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"AEDIKO 6pcs 1 Channel Relay Module DC 3V\/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51w0vJaB99L._SL160_.jpg\" alt=\"AEDIKO 6pcs 1 Channel Relay Module DC 3V\/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B09XTZSG53?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"AEDIKO 6pcs 1 Channel Relay Module DC 3V\/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            AEDIKO 6pcs 1 Channel Relay Module DC 3V\/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>3V Relay Module: Working Voltage: DC 3-3.3V; Working Current: 65mA; Trigger Current: 3mA;Load: 10A 250VAC \/ 10A 30VDC;Load Current: 10A max<\/li><li>Optocoupler Isolator: 3V\/3.3V Power Relay Module Supports Photocoupler Isolation Control<\/li><li>High Level Trigger: The Relay Module is Triggered by High Level Signal, Which Can Be Input From Microcontroller IO<\/li><li>Jumper Caps: By Removing the Jumper Caps on the Pins,You can Select Whether the Relay and the Signal Share the Same Power Supply or Not,But We Are Recommended to Share the Same Power Supply<\/li><li>Wide Application: These 3V Relay Power Switch Module Works Well With ARM \/PIC \/AVR \/MCU\/CNC Machine\/ PS4 etc.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B09XTZSG53?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B0B5D7MQFD\" data-aawp-product-id=\"4061148\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V\/3.3V Relay Power Switch Board for ESP8266 Microcontrollers Development Board\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #7<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B0B5D7MQFD?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V\/3.3V Relay Power Switch Board for ESP8266 Microcontrollers Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/61fPdZORRUL._SL160_.jpg\" alt=\"12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V\/3.3V Relay Power Switch Board for ESP8266 Microcontrollers Development Board\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0B5D7MQFD?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V\/3.3V Relay Power Switch Board for ESP8266 Microcontrollers Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V\/3.3V Relay Power Switch Board for ESP8266 Microcontrollers Development Board        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>1 channel SRD-DC03V-SL-C equiped with high-current relay, compatible load: AC250V 10A ; DC30V 10A, each relay has normally open and normally closed contact, can be selected by jumper relay and TTL or ground.<\/li><li>1 channel 3V\/3.3V power relay mdoule support photocoupler isolation control, support dual power supply input ensure high anti-iinterference ability, which can be input from microcontroller IO, with diode freewheel protection.<\/li><li>The relay module is triggered by high level signal, with output signal indicator, signal input port can be connected to the I0 port of the single chip microcomputer and driven by high-level signal.<\/li><li>The 3v relay board works well with ARM \/PIC \/AVR \/MCU\/Raspberry\/CNC machine\/NodeMCU\/ ESP8266 module etc.<\/li><li>1 channel 3V relay module external wiring adopts the rotary crimping terminal to make the wiring more firm. It is equipped with a fixed installation hole for easy installation.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B0B5D7MQFD?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B09SZ71K4L\" data-aawp-product-id=\"4682450\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"Alinan 10pcs 1 Channel 3V\/3.3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for ESP8266 Development Board\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #8<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B09SZ71K4L?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"Alinan 10pcs 1 Channel 3V\/3.3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for ESP8266 Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51ibvFxiY3L._SL160_.jpg\" alt=\"Alinan 10pcs 1 Channel 3V\/3.3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for ESP8266 Development Board\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B09SZ71K4L?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"Alinan 10pcs 1 Channel 3V\/3.3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for ESP8266 Development Board\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            Alinan 10pcs 1 Channel 3V\/3.3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for ESP8266 Development Board        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>\u3010High Reliability\u3011: Double power selection design anti-interference ability is strong, photoelectric isolation protection of high reliability.<\/li><li>\u301030VDC 250VAC Load\u3011: The power switch is compatible with 10A 250VAC and 10A 30VDC load.<\/li><li>\u3010Optocoupler Isolator\u3011 : 3V\/3.3V power relay module supports photocoupler isolation control.<\/li><li>\u3010High Level Trigger\u3011: The relay module is triggered by high level signal, which can be input from microcontroller IO.<\/li><li>\u3010Jumper Caps\u3011: You are free to select whether the relay and the signal share the same power supply or not by removing the jumper caps on the pins or not. It is recommended to share the same power supply, because that is more convenient for using.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B09SZ71K4L?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B0CZ3T8116\" data-aawp-product-id=\"5763896\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"DiGiYes 4Pcs 1 Channel DC 3V \/ 3.3V Relay High Level Driver Module Optocoupler Isolated Driver Control Module\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #9<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B0CZ3T8116?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"DiGiYes 4Pcs 1 Channel DC 3V \/ 3.3V Relay High Level Driver Module Optocoupler Isolated Driver Control Module\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/410qYu-S4ZL._SL160_.jpg\" alt=\"DiGiYes 4Pcs 1 Channel DC 3V \/ 3.3V Relay High Level Driver Module Optocoupler Isolated Driver Control Module\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0CZ3T8116?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"DiGiYes 4Pcs 1 Channel DC 3V \/ 3.3V Relay High Level Driver Module Optocoupler Isolated Driver Control Module\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            DiGiYes 4Pcs 1 Channel DC 3V \/ 3.3V Relay High Level Driver Module Optocoupler Isolated Driver Control Module        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>1 channel 3V high-level relay control module with optocoupler isolation control. Working voltage DC 3V\/3.3V, can control 10A 250V AC or 10A 30V DC loads.<\/li><li>The signal output is indicated by an indicator light. The signal input port can be connected to the microcontroller IO interface for high-level signal driving.<\/li><li>Dual power supply selection design, strong anti-interference ability, with optocoupler isolation protection, high reliability.<\/li><li>Board mounted 3V 10A 250VAC\/10A 30VDC relay, capable of continuously closing 100000 times, with diode leakage protection and short response time.<\/li><li>The external connection adopts rotary crimping terminals, making the wiring more secure. Equipped with fixed mounting holes for easy installation.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B0CZ3T8116?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--style-standard aawp-product--bestseller aawp-product--ribbon\"  data-aawp-product-asin=\"B0FBCB66D9\" data-aawp-product-id=\"5763897\" data-aawp-tracking-id=\"romanceunivers-20\" data-aawp-product-title=\"8-Channel I2C IIC Relay Board XL9535 USB-C Dual Power 3.3V\/5V SPDT 10A EMR DIN-Rail Ready Multi-Board I2C Expansion Expandable Compatible with Arduino ESP32 Raspberry Pi ESPHome & Home Assistant\" data-aawp-geotargeting=\"true\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--bestseller\">Rank No. #10<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\"\n           href=\"https:\/\/www.amazon.com\/dp\/B0FBCB66D9?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome & Home Assistant\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/4101g-yKjCL._SL160_.jpg\" alt=\"8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome & Home Assistant\"  \/>\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0FBCB66D9?tag=romanceunivers-20&linkCode=osi&th=1&psc=1&keywords=3.3v%20relay%20module\" title=\"8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome & Home Assistant\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome & Home Assistant        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>8 I2C-Controlled EMR Relays (10A Rated) \u2013 Features eight SPDT mechanical relays driven by the XL9535 GPIO expander. Each channel switches up to 10A @ 250VAC or 30VDC\u2014ideal for lighting, pumps, motors and AC\/DC loads.<\/li><li>Dual Power Mode for 3.3V & 5V MCUs \u2013 Use single-5V mode for Arduino, or dual-power mode for ESP32\/ESP8266\/Raspberry Pi (3.3V for logic, 5V for coils). Ensures safe I\u00b2C voltage levels and strong relay performance. Type C \/ USB-C Port available to power to board for your convenience<\/li><li>Noise-Reduced Stable Operation \u2013 Separate logic and relay power rails (VIN\/GND1 vs. 5V\/GND2) prevent voltage dips, MCU resets, and I\u00b2C communication errors\u2014critical in smart home and industrial systems.<\/li><li>Multi-Board I2C Expansion (Up to 64 Relays) \u2013 DIP switches allow selecting 8 unique I\u00b2C addresses (0x20\u20130x27). Daisy-chain up to 8 boards on one SDA\/SCL bus, enabling 64 individually addressable relay channels.<\/li><li>DIN-Rail Friendly & Maker Ready \u2013 Includes USB-C power input, high-quality screw terminals, clear labeling and a compact 150\u00d772mm design. Fully compatible with Arduino, ESP32, ESP8266, Raspberry Pi, Home Assistant and ESPHome. Example code available on GitHub.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n            \n                    <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--green\" href=\"https:\/\/www.amazon.com\/dp\/B0FBCB66D9?tag=romanceunivers-20&#038;linkCode=osi&#038;th=1&#038;psc=1&#038;keywords=3.3v%20relay%20module\" title=\"View Product\" target=\"_blank\" rel=\"nofollow noopener sponsored\">View Product<\/a>\n            <\/div>\n\n<\/div>\n\n    \n<\/div>\n<p class=\"aawp-disclaimer\">Last update on 2026-04-23 \/ Affiliate links \/ Images from Amazon Product Advertising API<\/p>\n<h2><strong>How Do You Buy The Best 3.3V Relay Module?<\/strong><\/h2>\n<p>Do you get stressed out thinking about shopping for a great 3.3V Relay Module? Do doubts keep creeping into your mind? We understand, because we&#8217;ve already gone through the whole process of researching 3.3V Relay Module, which is why we have assembled a comprehensive list of the greatest 3.3V Relay Module available in the current market. We&#8217;ve also come up with a list of questions that you probably have yourself.<\/p>\n<p>We&#8217;ve done the best we can with our thoughts and recommendations, but it&#8217;s still crucial that you do thorough research on your own for 3.3V Relay Module that you consider buying. Your questions might include the following:<\/p>\n<ul>\n<li>Is it worth buying an <strong>3.3V Relay Module<\/strong>?<\/li>\n<li>What benefits are there with buying an <em>3.3V Relay Module<\/em>?<\/li>\n<li>What factors deserve consideration when shopping for an effective <span style=\"text-decoration: underline\">3.3V Relay Module<\/span>?<\/li>\n<li>Why is it crucial to invest in any <strong>3.3V Relay Module<\/strong>, much less the best one?<\/li>\n<li>Which <em>3.3V Relay Module<\/em> are good in the current market?<\/li>\n<li>Where can you find information like this about <span style=\"text-decoration: underline\">3.3V Relay Module<\/span>?<\/li>\n<\/ul>\n<p>We&#8217;re convinced that you likely have far more questions than just these regarding 3.3V Relay Module, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.<\/p>\n<p>Potential sources can include <strong>buying guides for 3.3V Relay Module<\/strong>, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 3.3V Relay Module. Make sure that you are only using trustworthy and credible websites and sources.<\/p>\n<p>We provide an 3.3V Relay Module buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 3.3V Relay Module currently available on the market.<\/p>\n<p>This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:<\/p>\n<ol>\n<li><strong>Brand Value<\/strong>: Every brand of 3.3V Relay Module has a value all its own. Most brands offer some sort of unique selling proposition that&#8217;s supposed to bring something different to the table than their competitors.<\/li>\n<li><strong>Features:<\/strong> What bells and whistles matter for an 3.3V Relay Module?<\/li>\n<li><strong>Specifications<\/strong>: How powerful they are can be measured.<\/li>\n<li><strong>Product Value<\/strong>: This simply is how much bang for the buck you get from your 3.3V Relay Module.<\/li>\n<li><strong>Customer Ratings<\/strong>: Number ratings grade 3.3V Relay Module objectively.<\/li>\n<li><strong>Customer Reviews<\/strong>: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 3.3V Relay Module.<\/li>\n<li><strong>Product Quality<\/strong>: You don&#8217;t always get what you pay for with an 3.3V Relay Module, sometimes less, and sometimes more.<\/li>\n<li><strong>Product Reliability<\/strong>: How sturdy and durable an 3.3V Relay Module is should be an indication of how long it will work out for you.<\/li>\n<\/ol>\n<p>We always remember that maintaining 3.3V Relay Module information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.<\/p>\n<p>If you think that anything we present here regarding 3.3V Relay Module is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We&#8217;re here for you all the time. <a href=\"https:\/\/romanceuniversity.org\/contact\/\">Contact us here<\/a>. Or You can <a href=\"https:\/\/romanceuniversity.org\/about-us\/\">read more about us<\/a> to see our vision.<\/p>\n<h4>Related Post:<\/h4>\n<ul>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/remote-relay-module\"><span>Remote Relay Module<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/rs485-relay-module\"><span>Rs485 Relay Module<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/flip-flop-relay-module\"><span>Flip Flop Relay Module<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/16-relay-module\"><span>16 Relay Module<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/zigbee-relay-module\"><span>Zigbee Relay Module<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/230v-relay\"><span>230V Relay<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/relay-holder-automotive\"><span>Relay Holder Automotive<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/bluetooth-wireless-relay-switch-control\"><span>Bluetooth Wireless Relay Switch Control<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/speaker-relay-switch\"><span>Speaker Relay Switch<\/span><\/a><\/li>\n<li><a href=\"https:\/\/romanceuniversity.org\/top-10\/7-pin-relay\"><span>7 Pin Relay<\/span><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The Best 3.3V Relay Module of 2025 &#8211; Reviews &amp; Buying Guide After hours researching and comparing all models on the market, we find out the Best 3.3V Relay Module of 2025. Check our ranking below. Reviews Scanned How Do You Buy The Best 3.3V Relay Module? Do you get stressed out thinking about shopping&hellip;&nbsp;<a href=\"https:\/\/romanceuniversity.org\/top-10\/3-3v-relay-module\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">3.3V Relay Module<\/span><\/a><\/p>\n","protected":false},"author":0,"featured_media":140,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"on","footnotes":""},"categories":[3],"tags":[],"class_list":["post-87772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hobbies"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/posts\/87772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/comments?post=87772"}],"version-history":[{"count":0,"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/posts\/87772\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/media\/140"}],"wp:attachment":[{"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/media?parent=87772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/categories?post=87772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/romanceuniversity.org\/top-10\/wp-json\/wp\/v2\/tags?post=87772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}