3/5pcs 5V/12V Relay Module 1 Channel Relay Board with Opto-Isolated High or Low Level Trigger for Raspberry Pi and Arduino

Product Description

Product Overview

Key Features:

• Voltage Compatibility: Operates with both 5V and 12V power sources.
• Relay Contacts: Includes a Normally Open (NO) and a Normally Closed (NC) contact.
• Control Signal: Can be triggered using a 3-5V signal, compatible with most microcontrollers.
• Current Handling: Capable of handling up to 10A for AC 250V or DC 30V loads.
• Indicator LEDs: Provides visual feedback for power and relay status.
• Opto-Isolation: Some versions feature opto-isolation for electrically safe signal handling.
• Transistor Switching: Includes a transistor to amplify the control signal from a microcontroller pin to drive the relay coil.

Specifications:

• Supply Voltage: 3.75V to 6V for the logic level.
• Quiescent Current: Approximately 2mA.
• Active Current: Around 70mA when the relay is activated.
• Maximum Contact Voltage: 250VAC or 30VDC.
• Maximum Contact Current: 10A.

Applications:

• Home Automation: To control appliances like lights, fans, and heaters.
• Industrial Controls: For switching larger loads in manufacturing processes.
• Robotics: To manage the power circuits of motors and other mechanical components.

Usage Notes:

1. Ensure the control signal matches the required logic level (3-5V).
2. Be mindful of the current and voltage ratings when connecting loads.
3. Use the opto-isolation feature if working with high voltages for added safety.
4. Consider adding a flyback diode across the relay coil if switching inductive loads to protect against voltage spikes