5mm LED diode

Series No:





5 x 5 x 8.6






The Ultimate Guide to 5mm LED Diodes: Lighting the Way Forward

In the vast landscape of electronic components, 5mm LED diodes shine as fundamental elements for countless applications. This comprehensive guide delves into the world of 5mm LEDs, also known as diod LEDs, to explore their features, applications, and the immense benefits they offer. Coupled with insightful case studies and genuine user testimonials, this article is tailored for electronics manufacturer engineers, purchasers, and administrators. Discover how these tiny yet powerful components can illuminate projects and innovation.


The 5mm LED diode stands as a beacon in the electronics world, offering a blend of efficiency, versatility, and durability. Widely regarded for their straightforward implementation and broad compatibility, these LEDs serve as critical components in an array of devices and systems. From indicating status lights to forming the backbone of elaborate lighting solutions, the applications of 5mm LEDs are as diverse as they are significant. This guide aims to shine a light on their potential, guiding you through their advantages and real-world applications.

Features of 5mm LED Diodes

5mm LEDs are celebrated for their:

  • High Brightness: Despite their small size, these LEDs pack a punch in terms of luminosity.
  • Energy Efficiency: They consume minimal power, making them ideal for energy-conscious projects.
  • Color Variability: Available in a wide range of colors, offering flexibility in design.
  • Longevity: These diodes are designed to last, ensuring prolonged use with minimal degradation.

Applications Across Industries

The versatility of 5mm LEDs allows them to be integrated into various sectors:

  • Consumer Electronics: As backlighting for keyboards, displays, and indicators.
  • Automotive: In dashboard illumination, signal lights, and ambient lighting.
  • Signage: For creating vibrant and attention-grabbing displays.
  • Home Lighting: In DIY projects and decorative lighting solutions.

Their adaptability is further enhanced by the various packaging options, including SMD packages, which cater to surface mount technology needs.

The Benefits Unveiled

Incorporating 5mm LED diodes into your projects offers numerous advantages:

  1. Cost-Effectiveness: Their low power consumption and longevity reduce overall costs.
  2. Design Flexibility: The compact size and color variety enable creative design implementations.
  3. Environmental Impact: Energy efficiency translates to a smaller carbon footprint.
  4. Reliability: Known for their robustness, ensuring stable performance across applications.

Case Studies: Illuminating Success

This section provides a closer look at how 5mm LEDs have been pivotal in various projects, highlighting their transformative impact in both commercial and personal applications.

User Testimonials: In Their Own Words

Hearing from the engineers, purchasers, and administrators who have hands-on experience with 5mm LEDs offers a unique perspective on their practical benefits and implementation insights.

Conclusion: A Brighter Future with 5mm LEDs

The 5mm LED diode is not just a component; it’s a catalyst for innovation and creativity in the electronics industry. Its array of features, coupled with the benefits it brings to the table, makes it an indispensable tool for those looking to light up their projects with efficiency and flair.

Call to Action: Don’t let your projects be left in the dark. Embrace the versatility and power of 5mm LEDs and see your innovations come to life.

5mm LED diode
5mm LED diode


  • 5mm Round Flangeless LED Lamps: The absence of a flange gives these LEDs a sleek and streamlined appearance, making them suitable for applications where a smooth, unobtrusive look is desired.
  • Various Viewing Angles: These LEDs are available in different viewing angles to cater to specific needs, ensuring optimal visibility and light distribution for various applications.
  • Lens Options: They come with diffused, transparent, and water-clear lenses. Diffused lenses provide a soft and even light spread, transparent lenses offer a sharper and more focused light output, and water-clear lenses allow for the most direct and intense light.
  • IC Compatibility / Low Current Capability: These LEDs can be easily integrated with integrated circuits, making them suitable for complex electronic designs. Their low current operation also enhances energy efficiency.
  • RoHS Compliance: These LED lamps adhere to the Restriction of Hazardous Substances Directive, ensuring they are environmentally friendly and safe for use in various applications.


  • Indicator Lights: Commonly used in electronic devices, control panels, and appliances as indicators for power status, operational states, or warnings.
  • Backlighting: Suitable for backlighting in LCD displays, keypads, and control panels.
  • Consumer Electronics: Used in various consumer electronics for status indicators, aesthetic enhancements, and more.
  • Automotive Lighting: Employed in car dashboards, signal lights, or as part of the interior and exterior decorative lighting.
  • Toys and Novelty Items: Integrated into toys and novelty items for visual appeal and functionality.
  • Signal and Signage Applications: Incorporated in digital billboards, traffic signals, and signage for their visibility and durability.
  • DIY Projects and Hobby Electronics: Popular in DIY electronics and hobby projects due to their versatility and ease of use.
  • Decorative Lighting: Utilized in decorative lighting installations in homes, commercial spaces, and events.

RoHs Compliance, Pb-free              Anti-Static Attention

Electrical-optical characteristics:
Filters Sort results
Reset Apply
Article No
Water Clear
Ultra Bluish Green
Water Clear
Super Red
Water Clear
Ultra Pure Green
Water Clear
Hi Red
Water Clear
Ultra Blue
Water Clear
Ultra Orange
Water Clear
Ultra Green
Water Clear
Ultra Red
Water Clear
Ultra White
Water Clear
Ultra Yellow
Water Clear
Water Clear
Package configuration & Internal circuit diagram
5mm LED diode

All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.

Partno description:

LEDs, Light Emitting diodes, which include various small kinds, such as 3mm, 5mm, 8mm, 10mm; round type, rectangular type square type, tower type, Oval led, elliptical, flat top; SMDs, high power led, piranha LEDs

Part No of  LED diode

More Information

Lens Color:

Meaningcolor DiffusedColor TintedWater ClearWater DiffusedOrange diffused 

Absolute maximum ratings (Ta=25°C)

Forward Current I F252525303030303030303030mA
Power Dissipation P d606060656575110110120120120120mW
Reverse Voltage V R555555555555V
Peak Forward Current I PF (Duty 1/10 @1KHZ)150150150150150150150100100100100100mA
Operation Temperature T OPR-40 to +80°C
Storage Temperature T STG-40 to +85°C
Lead Soldering Temperature T SOL  Max.260+-5°C for 3 sec Max. (1.6mm from the base of the epoxy bulb)°C
Related Information

Applied for:
auto lampcameradome lightrgb screentraffic light


The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, 

communication equipment and household applications). Consult Betlux’s Sales in advance for information on 

applications in which exceptional reliability is required, particularly when the failure or malfunction of the LEDs

 may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical 

and life support systems and safety devices).

CAUTIONS for Through-Hole LED Lamps

1. Application
The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, communication equipment and household applications). Consult Betlux’s Sales in advance for information on applications in which exceptional reliability is required, particularly when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical and life support systems and safety devices).

2. Storage
The storage ambient for the LEDs should not exceed 30℃ temperature or 70% relative humidity. It is
recommended that LEDs out of their original packaging are used within three months
For extended storage out of their original packaging, it is recommended that the LEDs be stored in a sealed
container with appropriate desiccant or in a desiccator with nitrogen ambient.

3. Cleaning
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LED if necessary

4. Lead Forming & Assembly
During lead forming, the leads should be bent at a point at least 3mm from the base of LED lens. Do not use
the base of the leadframe as a fulcrum during forming.
Lead forming must be done before soldering, at normal temperature.
During assembly on PCB, use minimum clinch force possible to avoid excessive mechanical stress.

led diode formingassembly notice of led diode


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

Drive Method

An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs connected in 

parallel in an application, it is recommended that a current limiting resistor be incorporated in the drive circuit,

 in series with each LED as shown in Circuit A below.

drive notice - led diode

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.
Need help?
Scroll to Top