5mm Infrared Emitting Diodes

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5 x 5.9 x 8.6


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Through hole LEDs
Series No:BL-L513IR
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5 × 5.9 × 8.6 mm

Introduction to 5mm Infrared Emitting Diodes

5mm infrared emitting diodes are at the forefront of infrared technology, embodying the perfect balance between performance and practicality. Recognized by their 5mm size, these diodes specialize in emitting infrared light, which, although not visible to the naked eye, plays a crucial role in wireless communication, security systems, and many other technological applications. The term "infrared diode" not only denotes their functionality but also highlights their integral position in modern electronics.

Innovative Features of Infrared Diodes

The standout attribute of these diodes is their ability to provide a consistent and reliable source of infrared light with minimal power consumption. This efficiency is further enhanced by their narrow beam angle, allowing for precise control over the direction of infrared emission. Additionally, their compatibility with various electronic circuits makes them a versatile choice for designers and engineers looking to incorporate infrared technology into their projects.

Versatile Applications Across Industries

The applications of 5mm infrared emitting diodes are both diverse and impactful, stretching across multiple sectors. In consumer electronics, they are the unseen heroes of remote control devices, enabling seamless communication between gadgets. In the realm of security, infrared diodes serve as the backbone of motion detectors and surveillance systems, providing reliable performance under the veil of darkness. Moreover, their role in optical communication systems highlights their capability to transmit data over short distances without the need for wired connections.

Enhancing Electronic Solutions: Benefits for Professionals

For professionals in the electronics field, the advantages of using 5mm infrared emitting diodes are manifold. Their compact size and low power requirement facilitate the design of smaller, more energy-efficient devices. Additionally, the inherent robustness and longevity of these diodes contribute to reduced maintenance costs and longer lifecycles for electronic products, directly benefiting manufacturers and purchasers by lowering the total cost of ownership.

Case Studies: Real-World Impact and Innovation

The transformative potential of 5mm infrared emitting diodes is best illustrated through practical applications. One case study highlights their use in a leading brand's latest line of television remote controls, significantly enhancing signal reliability and range. Another example details their integration into a state-of-the-art home security system, where their performance in low-light conditions has dramatically improved detection accuracy and reduced false alarms.

User Testimonials: Voices from the Field

The effectiveness of 5mm infrared emitting diodes is further affirmed by testimonials from industry professionals. An electronics engineer praised their "unmatched efficiency and ease of integration," which significantly streamlined the development process of a new sensor module. A procurement manager lauded the "excellent cost-performance ratio," emphasizing how these diodes have enabled cost savings without compromising on quality or performance.

Conclusion: The Future is Infrared

The exploration of 5mm infrared emitting diodes uncovers a world of possibilities for the electronics industry. By combining compactness, efficiency, and versatility, these components are set to continue their vital role in advancing technology. For electronics professionals looking to stay at the forefront of innovation, incorporating these diodes into your projects is not just an option—it's a necessity. Embrace the invisible power of infrared and unlock new dimensions in your electronic designs.
5mm Infrared Emitting Diodes
5mm Infrared Emitting Diodes


  • 5.0mm Round Type Infrared LED: Designed to emit infrared light, typically not visible to the human eye, making them ideal for various electronic applications.
  • High Reliability: These LEDs are built to offer consistent performance and long-term durability, suitable for applications where dependability is crucial.
  • Peak Wavelength Options: Available in different wavelengths such as 940nm, 880nm, and 850nm, catering to specific requirements of various IR applications.
  • Lens Variants: Comes with different lens types like water clear, yellow transparent, and blue transparent, providing options for different IR transmission characteristics.
  • IC Compatible / Low Current Capability: Can be easily integrated with integrated circuits and designed for low power consumption, enhancing energy efficiency and device compatibility.
  • RoHS Compliance: Adheres to environmental and safety standards, ensuring the use of materials that are safe and environmentally friendly.


  • Remote Controls: Commonly used in remote control devices for TVs, AC units, and other electronics, where IR LEDs serve as the signal transmitter.
  • Security and Surveillance: Employed in IR cameras and night vision equipment for surveillance and security systems.
  • Optical Switches: Utilized in electronic devices where IR beams act as switches or triggers for certain functions.
  • Proximity Sensors: Integral in proximity sensors for various applications like mobile devices, automated machinery, and robotics.
  • Data Transmission: Used in short-range IR communication devices for data transfer, such as in older models of laptops and printers.
  • Medical Equipment: Infrared LEDs are used in some medical devices for diagnostic and therapeutic purposes.
  • Object Detection: Common in industrial and automotive sensors for detecting objects or movements.
  • Barrier Systems: Used in safety and security systems, like in garage door sensors, where an IR beam creates an invisible barrier.
Dimension and Circuit Drawing:
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When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.

Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.

Recommended soldering conditions:


IR Reflow Soldering (for SMD display)Wave SolderingSoldering Iron
Pre-Heat150-180°CPre-Heat100°C Max.Temperature300°C Max.
Pre-Heat Time120sec Max.Pre-Heat Time60sec Max.
Peak Temperature260°C Max.SolderWave260°C Max.Soldering Time3sec Max.(one time only)
Soldering Time10 sec Max.Soldering Time5sec Max.

Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED

ESD(Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD (Electrostatic Discharge):

n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs

n All devices, equipment, and machinery must be properly grounded

n Work tables, storage racks, etc. should be properly grounded

n Use ion blower to neutralize the static charge which might have built up on surface of the LED’s

 plastic lens as a result of friction between LEDs during storage and handling

ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, 

low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on” 

and Vf of the suspect LEDs at low currents.

The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP


antistatic notice-smd led

When selecting power for LED systems, it’s essential to understand several key parameters to ensure safe operation, longevity, and optimal performance. Here are some steps and considerations for LED power selection:

  • Determine the Forward Voltage (Vf) of the LED(s):

Each LED has a forward voltage, which is the voltage at which the LED operates when the current is flowing through it. This value can typically be found in the LED’s datasheet.

  • Determine the Forward Current (If) of the LED(s):

The forward current is the current at which the LED is designed to operate. Running an LED at higher than its rated current can reduce its lifespan and increase the heat it produces.

  • Decide on the Configuration:

Series Configuration: When LEDs are connected in series, the forward voltages add up, but the current remains the same.

Parallel Configuration: When LEDs are connected in parallel, the forward voltage remains the same, but the currents add up. This configuration can be risky because if one LED fails or has a slightly lower forward voltage, it can cause the other LEDs to draw more current.

Calculate Total Power Requirements:

Power (W) = Total Forward Voltage (V) x Total Forward Current (A)

For example, if you have three LEDs connected in series, each with a forward voltage of 3V and a forward current of 20mA, the total power requirement would be:

Power = (3V + 3V + 3V) x 20mA = 9V x 0.02A = 0.18W

  • Select an Appropriate Power Supply:
  • Voltage Rating: The power supply voltage should match or slightly exceed the total forward voltage of your LED configuration.
  • Current Rating: The power supply’s current rating should meet or exceed the total forward current of your LED configuration.
  • Safety Margin: It’s a good practice to select a power supply that can provide at least 20% more power than your calculated requirement. This ensures the power supply isn’t operating at its maximum capacity, which can extend its life and ensure safer operation.
  • Consider Additional Features:
  • Dimming Capability: If you want to control the brightness of your LEDs, choose a power supply with dimming capabilities.
  • Overcurrent and Overvoltage Protection: To protect your LEDs, select a power supply with built-in protection mechanisms.
  • Thermal Management: Ensure that the power supply has adequate cooling, especially if it will be enclosed or in a location with limited airflow.
  • Regulation and Efficiency:A power supply with good regulation will maintain a consistent voltage output despite variations in the load. High efficiency ensures minimal power is wasted as heat.
  • Physical Size and Form Factor:Depending on where you plan to place the power supply, its size and shape may be critical factors.

In summary, when selecting power for LED systems, understanding your LED’s requirements and the configuration you plan to use is essential. Then, pick a power supply that meets those needs with some added safety margin, keeping in mind any additional features or constraints relevant to your project.

Here are some well-regarded brands in the industry:

  • Mean Well: One of the most recognized brands in the LED power supply industry, Mean Well offers a wide range of products suitable for both indoor and outdoor applications. Their units often come with features like overcurrent protection, dimming capabilities, and high efficiency.
  • Tridonic: A global leader in lighting technology, Tridonic offers LED drivers and power supplies that cater to various lighting solutions, from simple setups to advanced smart lighting systems.
  • Philips Advance Xitanium: Philips is a well-known brand in the lighting industry, and their Xitanium series of LED drivers are known for reliability and performance. They cater to both indoor and outdoor LED applications.
  • Osram: Another giant in the lighting industry, Osram offers a range of LED drivers and power supplies suitable for various applications, including architectural and street lighting.
  • LIFUD: Specializing in LED drivers, LIFUD is known for its high-quality products that cater to both commercial and residential LED lighting solutions.
  • MOSO: This brand offers a variety of LED drivers, especially for outdoor and industrial applications. Their products are known for durability and performance.
  • TDK-Lambda: With a history in power electronics, TDK-Lambda offers a range of power supplies and LED drivers suitable for various applications, emphasizing reliability and advanced features.
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