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1 Channel Relay Module (Active High Control)
1 Channel Relay Module (Active High Control)

Price: $1.50

Quantity in Stock:52

Availability: Ships same day*
Product Code: AD440


This is a simple single-channel relay module. Connect power and then switch the relay on by applying a high signal to the "S" pin.

The module has three screw terminal connections connected to the relay that include common, normally open (N.O.), and normally closed (N.C.).

WARNING: The screw terminals and relay solder connections are exposed on the bottom of the board. Caution must be used especially when using this module with high voltages, such as mains power or any voltages greater than 12V. Always disconnect high voltage from the module before wiring or touching the module. When high voltage is supplied to the module be sure to refrain from touching or pointing to any part of the module. Working with high voltages should only be undertaken by experienced individuals.
Product Contents:
  • 1 — Single Channel Relay Module
Supply Voltage 3.75 to 6 V
Supply Current with Relay De-Energized 2 mA
Supply Current with Relay Energized 70 to 72 mA
Input Control Signal Active High
Input Control Signal Current 1.5 to 1.9 mA
Relay Max Contact Voltage 250 VAC or 30 VDC
Relay Max Contact Current 10 A
Length 34 mm (1.50")
Width 26 mm (1.02")
Height 18 mm (0.71")
Weight 14.51 g (0.512 oz)
Click on image to view full size Single Channel Relay Module
View of Size
Quarter Dollar Coin Shown for Scale Scale size of Single Ch Relay Module

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review

  0 of 0 people found the following review helpful:
5 of 5 Hackers' world August 1, 2019
By: Kevin R. Hardy from San Diego, CA United States  
I bought a camera control product that used a CdS light sensor and an unshielded LED to control the external lights.  Good Lord, have they never heard of an "optocoupler" or "constant current drain"?  That company's control interface was pulled directly from the set of "The Day The Earth Stood Still".  Yeah, I'm still grumpy.
 A Google search led me to this 1 channel relay module, and the Addicore team suggested ways to replace the CdS part with this PCB.
 We have moved on.  Thanks, Addicore!

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  0 of 0 people found the following review helpful:
5 of 5 May 9, 2018
By: Joseph W. Homer V from NORTH KINGSTOWN, RI United States  
All components carefully packed, shipped expediently, received expeditiously.

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