Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE
Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE
Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE
Quality electronics from The Tech Depot, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, expert support.
Specifications
| Feature | Details |
| Type | Electronics Component |
| Channels | 4 Independent Relay Channels |
| Operating Voltage | 12V DC |
| Driver IC | ULN2003 Darlington Transistor Array |
| Relay Type | SPDT (Single Pole Double Throw) |
| Max Current Per Channel | 500mA (typical) |
| Coil Voltage | 12V DC |
| Contact Rating | 10A @ 250V AC / 10A @ 30V DC |
| Input Logic | Active LOW (LED indicator) |
| Isolation | Optocoupler isolated inputs |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose This?
100% Authentic - Sourced from trusted suppliers with verification
Fast Delivery - 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse
Expert Support - 24/7 technical assistance included
Reliable Performance - Industrial-grade ULN2003 driver IC
Safe Operation - LED indicators for each channel status
Cost-Effective - Perfect for budget-conscious projects
Key Features
- 4 Independent Channels - Control 4 separate loads simultaneously
- ULN2003 Driver IC - High-current Darlington transistor array for reliable switching
- Low Trigger Voltage - Compatible with 3.3V and 5V microcontroller outputs
- LED Status Indicators - Visual feedback for each relay state
- Compact Design - Space-saving module for embedded applications
- High Switching Speed - Suitable for rapid on/off cycling
- Protection Diodes - Built-in flyback diodes prevent voltage spikes
Applications & Project Ideas
DIY Electronics
- Home automation projects
- Smart lighting systems
- Hobby robotics and RC projects
- Weather station automation
Professional Applications
- Industrial equipment control
- HVAC system automation
- Pump and motor control
- Security system integration
Learning & Education
- Microcontroller interfacing projects
- Arduino and Raspberry Pi projects
- Electronics and automation courses
- IoT prototype development
Specific Use Cases
- Switching high-power DC motors
- Controlling solenoid valves
- Relay-based alarm systems
- Temperature control systems
What's in the Box
Four Channel 12V Relay Board Module
User Manual & Pinout Diagram
Quick Start Guide Technical DocumentationSupport Contact Information
Technical Details
Pin Configuration:
- IN1-IN4: Input pins (active LOW)
- GND: Ground
- VCC: 12V power supply
- COM, NO, NC: Relay contacts (4 sets)
Operating Conditions:
- Temperature Range: 0 degreesC to 60 degreesC
- Storage Temperature: -20 degreesC to 85 degreesC
- Humidity: 10% to 90% (non-condensing)
Frequently Asked Questions
Is this 100% authentic?
Yes, all products are sourced from authorized distributors with complete authentication verification and quality assurance checks.
What warranty is included?
7-day warranty on manufacturing defects covering all manufacturing defects and failures under normal operating conditions.
How fast is the shipping?
1-5 day shipping, 7-8 day delivery to most locations in India from our Bengaluru warehouse. Express options available.
Do you provide technical support?
Yes! Full 24/7 technical support via email and WhatsApp. Our engineers can help with circuit design, troubleshooting, and integration.
What is the return policy?
7-day returns on manufacturing defects only with full refund or replacement. applicable on manufacturing defects only on manufacturing defects.
Can I get bulk discounts?
Yes! Wholesale pricing available on orders of 10+ units. Contact us for custom quotes.
Is this compatible with Arduino/Raspberry Pi?
Yes, fully compatible with Arduino, Raspberry Pi, and other microcontroller platforms. Works with 3.3V and 5V logic levels.
What power supply do I need?
A regulated 12V DC power supply (1A minimum recommended for all 4 channels). Ensure proper current capacity for your load.
Customer Support
Email: support@thetechdepot.in
WhatsApp: Available 24/7
Location: Bengaluru, India
We're here to help! Contact us with any questions about specifications, compatibility, or project implementation.
Buy Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE Online in India
Purchase the Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE at the best price in India? The Tech Depot 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.