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Your cart is empty. Specification:
Channel: 1 channel
Material: Circuit board
Control signal: TTL
Max. switch voltage: 250VAC, 30V
Rated load: AC125~250V/10A, DC28~30V/10A
Pick-Up Current ：70mA
Size:22mm * 34mm *17mm
5V Relay Terminal
1.NC: Normally closed 120-240V terminal 2.NO: Normally open 120-240V terminal 3.COM: Common terminal
5V Module Pins interface:
Ground: Connects to the ground pin on the Arduino
5V Vcc: Connects the Arduino’s 5V pin
Signal: Carries the trigger signal from the Arduino that activates the relay
HOW THE 5V RELAY WORKS:
The SRD-05VDC-SL-C relay has three high voltage terminals (NC, C, and NO) which connect to the device you want to control. The other side has three low voltage pins (Ground, Vcc, and Signal) which connect to the Arduino.
100% Satisfaction Guarantee:
12-Month Warranty; No satisfied, Free reason for return; Quality problem, please contact us, we will resend your FREE Replacements or make you FULL Refund.
Package include:
8PCS 5v Relay Board
M/G
August 17, 2025
Works great for all sorts of small projects, from Arduino, Pi, and whatever else.
TheRealElbadoo
July 17, 2025
I'm using these with ESP32 boards and all is good. I power them off the 5 volt USB feeding through the ESP32 board and the controlling signal is directly from one of the GPIO lines configured as an output. So far in my testing I haven't had any problems with spikes on the power supply lines causing problems for the processor.The one minor thing to be aware of when using a 3.3 volt controller (i.e., an ESP32) is that the relay likely needs to be set up where it's triggered active-high vs. active-low. If you try to use them active-low, the "high" state of the GPIO output may not be high enough to keep from triggering the relay. At least... that's been my experience.
I'm a real customer
June 6, 2025
For those complaining about the screws, you probably over tightened them.These are delicate micro electronics - use a proper screw driver that is tiny - this will help greatly.Super easy to use and the zoomed in photos assist with the tiny labeling.
Robert
May 10, 2025
They work well but the terminal screws are not very good. I had to throw a few away.
Ryan Tollison
April 1, 2025
I used these in combination with a motion sensor in order to trigger my Halloween animatronics. They worked great. Planning on ordering some more later for other props. They were easy to use and so far no problems with them.
Philanthropy
March 15, 2025
A lot of places sell these little relays, and they appear to be all exactly the same. I was using a 10amp power supply and I hope it's not shorting because of the way I have my set up running directly through to a water pump, but these things bug out at 10 amps constantly making them completely unreliable. They will get stuck on, or flicker on and off really fast and not actually turn on the switch. They also didn't get enough power from an Arduino to actually turn the switch on and off. SO the Amazon listing is misleading even. They really are disappointing if you want reliable relays that are running 10 AMPS DC consistently through them and want to have just one power supply.Edit: I lowered the amperage to 8 amps. Now they don't appear to be bugging out.
Steven James
March 11, 2025
Used this combined with a ESP8266 and a temp sensor I am able to control the temps within 2-3 degrees.
Customer
January 19, 2025
These relays are great.
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