5mm IR Transmitter Receiver Pair
5mm IR Transmitter Receiver Pair
5mm IR Transmitter Receiver Pair
Reliable 5mm infrared transmitter and receiver LED pair from The Tech Depot, Bengaluru. Ideal for object detection, proximity sensing, line-following robots, and wireless IR communication projects. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Component Type | IR LED Transmitter & Photodiode Receiver Pair |
| LED Diameter | 5mm (T1-3/4 Package) |
| Wavelength (Transmitter) | 940nm (Infrared) |
| Forward Voltage (Transmitter) | 1.2V - 1.5V |
| Forward Current (Transmitter) | 20mA (Max 50mA) |
| Receiver Type | IR Photodiode |
| Peak Sensitivity Wavelength | 940nm |
| Detection Range | Up to 15-20cm (depending on ambient conditions) |
| Viewing Angle | ~20 degrees-30 degrees |
| Operating Voltage | 3.3V - 5V (with appropriate resistor) |
| Lens Color (Transmitter) | Clear / Transparent |
| Lens Color (Receiver) | Dark / Tinted (IR filter) |
| Operating Temperature | -25 degreesC to +85 degreesC |
| Compatibility | Arduino, Raspberry Pi, ESP32, ESP8266, STM32, PIC, 555 Timer Circuits |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Matched 940nm Pair: Transmitter and receiver are wavelength-matched for maximum sensitivity and reliable detection
- Standard 5mm Package: Fits directly into breadboards, perfboards, and standard PCB through-hole footprints
- Wide Operating Voltage: Works seamlessly with 3.3V and 5V logic systems using a simple current-limiting resistor
- Fast Response Time: Rapid switching speed suitable for high-frequency modulation and data transmission applications
- Low Power Consumption: Draws minimal current, making it perfect for battery-powered and portable projects
- Easy Visual Identification: Clear lens for transmitter, dark-tinted lens for receiver - no mix-ups during assembly
- Long Operating Life: Solid-state LED technology ensures thousands of hours of reliable operation
Why Choose This IR Pair?
- 100% authentic components from trusted and verified suppliers
- Pre-matched transmitter and receiver for optimal performance out of the box
- Extensively tested and used in robotics, automation, and embedded systems projects
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse
- Expert technical support to help you integrate into your circuit design
- Excellent value - professional-grade components at hobbyist-friendly pricing
How It Works
The IR transmitter is an infrared LED that emits invisible 940nm light when forward-biased. The IR receiver is a photodiode that conducts current proportionally to the intensity of infrared light hitting its junction. When an object is placed between or in front of the pair, the reflected or interrupted IR beam changes the receiver's output, which can be read by a microcontroller's analog or digital input pin. A simple voltage divider circuit with the photodiode and a pull-up resistor converts the light intensity change into a measurable voltage signal.
Typical Circuit Configuration
- Transmitter Circuit: Connect the IR LED anode to VCC (5V) through a 100Ohm-220Ohm current-limiting resistor; cathode to GND
- Receiver Circuit: Connect the photodiode cathode to VCC and anode to GND through a 10KOhm pull-down resistor; tap the voltage at the junction for analog/digital reading
- With Comparator: Use an LM358 or LM393 comparator IC with a potentiometer for adjustable threshold-based digital output
Project Ideas
- Line-Following Robot: Mount multiple IR pairs facing downward to detect black lines on a white surface for autonomous navigation
- Object Detection & Counting: Create a break-beam sensor to count objects passing through a conveyor belt or doorway
- Obstacle Avoidance Robot: Use reflective IR sensing to detect walls and obstacles for autonomous robot movement
- IR Remote Control Decoder: Pair with a TSOP1738 or use directly to build custom IR remote control systems
- Proximity Sensor Module: Build a DIY proximity sensor for automatic hand dryers, soap dispensers, or touchless
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 5mm IR Transmitter Receiver Pair Online in India
Purchase the 5mm IR Transmitter Receiver Pair 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 5mm IR Transmitter Receiver Pair 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 5mm IR Transmitter Receiver Pair 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.