Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE
Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE
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Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE
Quality electronics from Tech Depot India, Bengaluru.
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 | |
| Support | Email & WhatsApp reliable |
Why Choose This?
100% Authentic - Sourced from trusted suppliers with verification
Expert Support - reliable 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?
What warranty is included?
How fast is the shipping?
Express options available.
Do you provide technical support?
Yes! Full reliable technical support via email and WhatsApp. Our engineers can help with circuit design, troubleshooting, and integration.
What is the return policy?
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: techdepotindia@gmail.com
WhatsApp: Available reliable
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 Tech Depot India - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Delhi, Hyderabad, Ahmedabad, Jaipur, and Surat.
Looking to buy Four CHANNEL 12V ULN2003 BASED RELAY BOARD MODULE 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.
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