20 Best 3V Relay of 2025 – Romance University
After hours researching and comparing all models on the market, Romance University finds out the Best 3V Relay of 2025. Check our ranking below.
2,142 Reviews Scanned
- Original Songle Relay
- 30VDC 250VAC Load：The power switch is compatible with 10A 250VAC and 10A 30VDC load.
- Optocoupler Isolator:3V/3.3V power relay module supports photocoupler isolation control.
- Product Name: PCB Electromagnetic Power Relay;Model: JQC-3F(T73)
- Coil Voltage : DC 3V
- Contact Capacity: 7A 240VAC, 10A 125VAC/28VDC
- Number of pins: 5 Pins; Contact: SPDT Type
- Content : 6 x PCB Power Relay
- 【30VDC 250VAC Load】 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.
- 【High Level Trigger】The relay module is triggered by high level signal, which can be input from microcontroller IO.
- 【 3V/3.3V power relay module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO.
- 【Wide Application】- These 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/ ESP8266 module etc.
- 【Long Life】 - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection.
- Indicator with output signal
- The signal input port can be connected to the IO port of the single chip microcomputer, and the high-level signal is driven
- Dual power supply selection design has strong anti-interference ability and high reliability of photoelectric isolation protection
- Onboard 3V,10A/250VAC; 10A/30V DC relay, which can be continuously closed for 100,000 times, with diode laxative protection, short response time
- The external connection adopts rotary crimping terminal to make the connection firmer, With fixed mounting holes for easy installation
- 3.3V Relay Module：Compatible with for Power Switching LED Lights Small Motors Circuit Isolation Signal Conversion
- Size：70*17*20mm
- Voltage: DC 3V/3.3V
- Load：10A 250VAC；10A 30VDC
- Commodities include：6Pcs 3V/3.3V Relay Module
Last update on 2025-07-08 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
How Do You Buy The Best 3V Relay?
Do you get stressed out thinking about shopping for a great 3V Relay? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 3V Relay, which is why we have assembled a comprehensive list of the greatest 3V Relay available in the current market. We’ve also come up with a list of questions that you probably have yourself.
Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 3V Relay that you consider buying. Your questions might include the following:
- Is it worth buying an 3V Relay?
- What benefits are there with buying an 3V Relay?
- What factors deserve consideration when shopping for an effective 3V Relay?
- Why is it crucial to invest in any 3V Relay, much less the best one?
- Which 3V Relay are good in the current market?
- Where can you find information like this about 3V Relay?
We’re convinced that you likely have far more questions than just these regarding 3V Relay, 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.
Potential sources can include buying guides for 3V Relay, 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 3V Relay. Make sure that you are only using trustworthy and credible websites and sources.
Romance University provides an 3V Relay 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 3V Relay currently available on the market.
This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:
- Brand Value: Every brand of 3V Relay has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an 3V Relay?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your 3V Relay.
- Customer Ratings: Number ratings grade 3V Relay objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 3V Relay.
- Product Quality: You don’t always get what you pay for with an 3V Relay, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an 3V Relay is should be an indication of how long it will work out for you.
Romance University always remembers that maintaining 3V Relay information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.
If you think that anything we present here regarding 3V Relay is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.
FAQ:
Q: What kind of power do I need for a 3.3V relay?
A: Usually, you’re ging to power the 3.3V device from something like 5V USB or 9V plug. These sources can often provide the power required to energize the coil of your relay. You will have to make the control signal of your board and switch the “input power” over the coil of your relay.
Q: Can a relay be connected to an Arduino?
A: It has an optocoupler, to isolate the arduino from the actual relay. It might be better to get one that actually works on your battery voltage range. So that you can hook it up to the battery (and the signal pin to the Arduino). So the coil isn’t activated directly by the arduino, which would draw too much current.
Q: Do you need a relay for a MOSFET?
A: Mind that this answer is for driving relays, if you’re going to switch 20VDC at ~3A, a MOSFET will be a better/cheaper solution, as you don’t need the relay. Output pins shouldn’t be used to drive anything. Output signals are low current control signals.