As a seasoned supplier of DIP (Dual In-line Package) IR (Infrared) LEDs, I've had numerous inquiries about the typical wavelength range of these essential components. In this blog, I'll delve into the science behind DIP IR LEDs, explore their typical wavelength ranges, and highlight their applications. By the end, you'll have a comprehensive understanding of DIP IR LEDs and how they can benefit your projects.
Understanding Infrared Light
Infrared light is a type of electromagnetic radiation with wavelengths longer than those of visible light but shorter than those of microwaves. It's divided into three main categories based on wavelength: near-infrared (NIR), mid-infrared (MIR), and far-infrared (FIR). Near-infrared has wavelengths closest to visible light, ranging from about 700 nanometers (nm) to 1400 nm. Mid-infrared spans from 1400 nm to 3000 nm, while far-infrared covers wavelengths from 3000 nm to 1 mm.
DIP IR LEDs: An Overview
DIP IR LEDs are semiconductor devices that emit infrared light when an electric current passes through them. They're widely used in various applications, including remote controls, security systems, industrial sensors, and medical devices. Their dual in-line package design makes them easy to mount on printed circuit boards (PCBs), making them a popular choice for electronic designers.
Typical Wavelength Range of DIP IR LEDs
The typical wavelength range of DIP IR LEDs falls within the near-infrared spectrum, specifically between 800 nm and 980 nm. This range is ideal for many applications because it offers a good balance between power output, efficiency, and the ability to penetrate various materials.
- 800 - 850 nm: LEDs in this range are commonly used in applications where high power output is required, such as in surveillance cameras and outdoor security systems. They're also suitable for applications that require long-distance communication, as the shorter wavelength allows for better signal transmission.
- 850 - 940 nm: This is the most common wavelength range for DIP IR LEDs. It's used in a wide variety of applications, including remote controls, proximity sensors, and optical encoders. LEDs in this range offer a good balance between power and efficiency, making them a versatile choice for many electronic devices.
- 940 - 980 nm: LEDs in this range are often used in applications where eye safety is a concern, such as in consumer electronics and medical devices. The longer wavelength is less visible to the human eye, reducing the risk of accidental exposure to high-intensity infrared light.
Applications of DIP IR LEDs
The unique properties of DIP IR LEDs make them suitable for a wide range of applications. Here are some examples:
- Remote Controls: DIP IR LEDs are the heart of most remote controls for televisions, DVD players, and other consumer electronics. They emit infrared signals that are received by the corresponding devices, allowing users to control them from a distance.
- Security Systems: In security systems, DIP IR LEDs are used in infrared cameras and motion sensors. They provide the necessary illumination for night vision and detect movement by sensing changes in infrared radiation.
- Industrial Sensors: DIP IR LEDs are used in various industrial sensors, such as proximity sensors, photoelectric sensors, and reflective sensors. They can detect the presence or absence of objects, measure distances, and monitor the movement of materials on conveyor belts.
- Medical Devices: In the medical field, DIP IR LEDs are used in pulse oximeters, which measure the oxygen saturation level in the blood. They're also used in some types of medical imaging equipment, such as infrared thermography cameras.
Our Product Offerings
As a DIP IR LED supplier, we offer a wide range of products to meet the diverse needs of our customers. Our product lineup includes 5mm Infrared LED Emitters, which are known for their high power output and long lifespan. We also offer 0.5W IR LED for applications that require higher power levels. Additionally, our 5mm IR LEDs are available in various wavelength ranges, allowing you to choose the one that best suits your application.
Contact Us for Your DIP IR LED Needs
If you're looking for high-quality DIP IR LEDs for your project, we're here to help. Our team of experts can assist you in selecting the right product based on your specific requirements. Whether you need a large quantity for a mass production project or a small sample for prototyping, we can provide you with the best solution at a competitive price.
Don't hesitate to reach out to us to discuss your DIP IR LED needs. We're committed to providing excellent customer service and ensuring that you're satisfied with your purchase. Contact us today to start your procurement process and take your project to the next level.


References
- "Infrared Technology Handbook," edited by Daniel C. Reynolds, CRC Press, 2013.
- "Semiconductor Optoelectronics: Physics and Technology," by Liang-Chy Chien, John Wiley & Sons, 2009.
- "LEDs: Lighting the Future," published by the Illuminating Engineering Society, 2016.
