1 CH 5V Relay Board
1 CH 5V Relay Board
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Looking to buy 1 CH 5V Relay Board at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Control high-voltage appliances and devices safely with this 1-Channel 5V Relay Module from Tech Depot India, Bengaluru. Designed for seamless integration with Arduino, Raspberry Pi, ESP32, and other microcontrollers, this relay board lets you switch AC/DC loads up to 250V AC / 30V DC using a simple 5V logic signal. Ideal for home automation, IoT projects, and industrial control applications.
Specifications
| Module Type | 1-Channel Relay Module |
| Operating Voltage | 5V DC |
| Trigger Signal | 3.3V-5V (Active Low) |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM terminals |
| Maximum Switching Voltage | 250V AC / 30V DC |
| Maximum Switching Current | 10A |
| Relay Coil Current | ~70mA per channel |
| Isolation | Optocoupler isolated input for microcontroller protection |
| Indicator | Onboard LED for relay status (ON/OFF) |
| Switching Time | ~10ms (typical) |
| Relay Lifespan | 100,000 mechanical cycles (typical) |
| Board Dimensions | ~50mm x 26mm x 18mm |
| Mounting | Two screw-mount holes for secure installation |
| Connector Type | 3-pin header (VCC, GND, IN) + 3-pin screw terminal (COM, NO, NC) |
| Compatibility | Arduino, Raspberry Pi, ESP8266, ESP32, STM32, PIC, and other MCUs |
| Operating Temperature | -25 degreesC to +70 degreesC |
| Origin | Original/Authentic - Quality Tested |
Why Choose 1 CH 5V Relay Board?
100% Authentic - Sourced from authorized distributors, fully verified before dispatch.
GST Invoice - A GST invoice is included with every order.
Expert Support - Dedicated technical help on WhatsApp and email.
Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.
Trusted by Makers - Used by students, hobbyists and professionals nationwide.
Key Features of 1 CH 5V Relay Board
- Optocoupler Isolation: Protects your microcontroller from high-voltage spikes and back-EMF, ensuring safe and reliable operation.
- Active Low Trigger: Easily activated with a LOW signal from 3.3V or 5V logic microcontrollers for broad compatibility.
- SPDT Relay Output: Provides Normally Open (NO), Normally Closed (NC), and Common (COM) terminals for flexible switching configurations.
- High-Power Switching: Handle loads up to 250V AC at 10A - enough to control lights, fans, motors, pumps, and appliances.
- Onboard Status LED: Instantly see whether the relay is energized or de-energized without any additional instrumentation.
- Flyback Diode Protection: Built-in diode across the relay coil suppresses voltage spikes during switching, extending component life.
- Compact & Mountable: Small footprint with screw-mount holes makes it easy to integrate into enclosures, panels, and project boxes.
- Screw Terminals for Load: Secure, tool-tightened connections for high-voltage wiring - no soldering required on the output side.
- Optocoupler-isolated design ensures your Arduino or Raspberry Pi stays protected
- Rated for 10A at 250V AC - handles real-world appliance loads with confidence
- Plug-and-play with standard 2.54mm pin headers - no complex wiring needed
Perfect For
- Home Automation
How It Works
- Input Side: Connect VCC to 5V, GND to ground, and IN to a digital GPIO pin on your microcontroller. When the IN pin receives a LOW signal, the optocoupler activates the relay coil.
- Relay Action: The electromagnetic relay switches its internal contacts - the COM terminal connects to NO (Normally Open) when energized, or stays connected to NC (Normally Closed) when idle.
- Output Side: Wire your high-voltage load (lamp, fan, motor, solenoid, etc.) through the screw terminals using the COM and NO or NC connections depending on your desired default state.
- Safety Isolation: The optocoupler provides electrical isolation between the low-voltage control circuit and the high-voltage switching circuit, preventing dangerous feedback.
Frequently Asked Questions
Is technical support available?
Yes, responsive support via email and WhatsApp for setup, troubleshooting, and application guidance.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
Order your 1 CH 5V Relay Board today and start building your next project.
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