top of page
KY-019 5V Relay Module
Overview:
The KY-019 5V Relay Module is a single-channel relay that allows low-voltage control of high-voltage devices. It operates as an electrically controlled switch, capable of switching AC or DC loads. This module is ideal for home automation, motor control, and other projects where high-power devices need to be controlled by microcontrollers like Arduino, Raspberry Pi, or ESP32.

              KY-019 5V Relay Module

              $999.00Price

              • Key Features:

                • Supports High Voltage Loads: Capable of controlling up to 250VAC at 10A or 30VDC at 10A.

                 

                • Electrically Isolated: Safely controls high-voltage circuits using low-power control signals.

                 

                • NO (Normally Open) and NC (Normally Closed) contacts for flexible switching configurations.

                 

                • LED Indicator: A built-in LED provides visual feedback for relay activation.

                 

                • TTL Logic: The control input accepts 5V TTL signals from microcontrollers.

                 

                 

                Specifications:

                • Operating Voltage: 5V DC

                 

                • Maximum AC Load: 250V at 10A

                 

                • Maximum DC Load: 30V at 10A

                 

                • Contact Type: Normally Open (NO) and Normally Closed (NC)

                 

                • Relay Control Signal: 5V TTL

                 

                • Dimensions: 27mm x 34mm

                 

                • Pinout:
                  • S: Signal pin (connected to the microcontroller output)
                  • +5V: Power pin for the relay coil
                  • GND: Ground pin for the relay coil
                  • NO (Normally Open): Load is connected here if you want it to turn on when the relay is activated.
                  • NC (Normally Closed): Load is connected here if you want it to stay on when the relay is not activated.
                  • COM (Common): Connect this to the power source for the load.

                 

                 

                Applications:

                • Home Automation: Automate control of lights, fans, and appliances using microcontrollers.

                 

                • Motor Control: Useful in controlling high-current motors in robotics or other machinery.

                 

                • Security Systems: Trigger alarms or security lights using sensors with this relay module.

                 

                • Smart Irrigation Systems: Can control water pumps or solenoid valves in automated irrigation setups.

                 

                • Energy Management: Automatically switch off appliances to conserve energy when not in use.

                 

                 

                The KY-019 5V Relay Module is an essential tool for any project requiring safe and isolated control of high-voltage circuits. It is particularly useful for automation and control systems where low-voltage devices control high-voltage loads.

              bottom of page