Through hole LED
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Description:
3mm Round RGB Color LED Diode – Compact Full-Color Indicator for Precision Electronics
The 3mm round RGB color LED diode is a compact, high-performance lighting component designed to deliver full-spectrum color output in an exceptionally small footprint. Featuring integrated red, green, and blue chips inside a classic 3mm (T-1) round lens, this LED enables smooth color mixing, vivid illumination, and precise control for engineers, designers, and manufacturers who need multi-color signaling in limited space.
From consumer electronics to control panels, wearable technology, and instrument indicators, this RGB LED provides outstanding versatility, low power consumption, and long-life performance—making it an essential component in modern, color-rich visual interfaces.
⭐ Key Features
1. Full RGB Color Output
The LED incorporates three independent chips—red, green, and blue—allowing:
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Over 16 million color variations through PWM control
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Smooth blending and fading effects
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Crisp, bright primary colors
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Versatile color-coded indicator functions
It offers impressive brightness despite its miniature size.
2. Classic 3mm Round Lens Structure
The well-known T-1 3mm round package ensures:
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Compact installation in crowded circuits
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Uniform light distribution
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Standard PCB footprint compatibility
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A clean, professional front-panel appearance
Available in diffused or water-clear lens types depending on your illumination requirements.
3. Multi-Lead Configuration
Separate leads for each color channel provide:
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Independent color control
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Seamless integration with microcontrollers (Arduino, MCU, FPGA, IoT boards)
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A wide range of color effects, flashing modes, and animations
Ideal for dynamic displays and smart indicator lights.
4. High Brightness with Low Current Requirement
The LED uses high-efficiency chips designed to produce:
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Strong luminous output
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Excellent visibility indoors and outdoors
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Bright performance even at low drive currents
Perfect for battery-powered systems and compact devices.
5. Durable Through-Hole Construction
The LED offers:
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Reliable long-term operation
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Excellent heat and vibration resistance
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Robust epoxy lens protection
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Simplified soldering and mounting
⭐ Applications
The 3mm round RGB LED diode supports a wide range of applications across industries thanks to its miniature size and full-color capability.
✔ Industrial & Commercial Indicators
Color-coded status lights for:
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Machinery panels
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Sensors
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Power systems
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Automation equipment
RGB allows multi-state or warning-level indication using one component.
✔ Consumer Electronics
Commonly used in:
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Audio systems
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Smart appliances
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Charging docks
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IoT devices
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Gaming accessories
RGB lighting enhances aesthetics and user interaction.
✔ Wearable Devices & Compact Gadgets
The small 3mm footprint is ideal for thin or lightweight products.
✔ Testing & Diagnostics Equipment
Provides clear visual feedback using color-coded signals.
✔ Prototyping & Maker Projects
Popular in:
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Arduino projects
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Robotics
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LED effects
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Educational kits
RGB offers excellent flexibility for creative lighting designs.
✔ Communication Equipment
Used for operational modes, notifications, and status changes.
⭐ Benefits & Advantages
✔ One LED, Full Color Spectrum
A single RGB diode replaces multiple colored LEDs, reducing:
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PCB space
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Component costs
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Assembly time
✔ Enhanced Visibility
Bright chips ensure vivid colors even under high-ambient lighting.
✔ Flexible Control Options
Supports:
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PWM color mixing
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Fade effects
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Multi-state indicators
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Digital or analog control
✔ Reliable Long-Life Design
Built with quality materials for long-term, maintenance-free operation.
✔ Ideal for Space-Constrained Designs
The 3mm cylindrical body fits easily into small or narrow mounting locations.
✔ Aesthetic Value
RGB lighting adds modern appeal to any electronic product.
⭐ Case Study: Smart Device Manufacturer Upgrade
A US manufacturer of compact wearable fitness devices needed a single LED capable of:
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RGB output
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Low current operation
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Minimal PCB footprint
Switching to the 3mm round RGB LED diode allowed them to:
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Replace three separate LEDs with one compact unit
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Reduce PCB size by 18%
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Provide richer feedback to users through multi-color signaling
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Increase product durability due to fewer solder points
The RGB LED became a key feature promoting improved user interface design.
⭐ User Testimonials
Electronics Engineer – UK
“Compact, bright, and easy to drive. Perfect for RGB notifications in small enclosures.”
Assembly Technician – USA
“The soldering quality and lead strength are excellent. Very reliable for through-hole mounting.”
Hobby Maker – Australia
“Amazing RGB effect from such a tiny LED. Works perfectly with Arduino.”
⭐ Conclusion
The 3mm round RGB color LED diode is a powerful, space-efficient lighting solution offering unmatched versatility for modern electronics. Its full-color capability, long lifespan, low power usage, and familiar 3mm through-hole design make it ideal for applications ranging from professional control panels to consumer devices and hobbyist projects.
For products requiring a compact yet visually dynamic indicator, this RGB diode delivers exceptional performance and design flexibility.
Electrical-optical characteristics:
Package configuration & Internal circuit diagram
Obtain 3D specification files
Initial Graphics Exchange Specification (.IGS)Standard for the Exchange of Product Model Data (.STEP)To examine all 3D specifications, save the files to your local drive and open them with your 3D application.
Lens colors in 3D files are solely for visual representation; consult the Datasheet for accurate lens type and color information.
In the event of a mismatch, the dimensions in the datasheet take precedence over the 3D specifications.
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
More Information
Lens Color:
| Code | D | T | C | W | E | |
| Meaning | color Diffused | Color Tinted | Water Clear | Water Diffused | Orange diffused |
Absolute maximum ratings (Ta=25°C)
| Parameter | SR | LR | UR | UE | UY | UG | PG | BG | B | UB | UV | W | Unit |
| Forward Current I F | 25 | 25 | 25 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | mA |
| Power Dissipation P d | 60 | 60 | 60 | 65 | 65 | 75 | 110 | 110 | 120 | 120 | 120 | 120 | mW |
| Reverse Voltage V R | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | V |
| Peak Forward Current I PF (Duty 1/10 @1KHZ) | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 100 | 100 | 100 | 100 | 100 | mA |
| 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:
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.
Soldering
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 Soldering | Soldering Iron | |||
| Pre-Heat | 150-180°C | Pre-Heat | 100°C Max. | Temperature | 300°C Max. |
| Pre-Heat Time | 120sec Max. | Pre-Heat Time | 60sec Max. | ||
| Peak Temperature | 260°C Max. | SolderWave | 260°C Max. | Soldering Time | 3sec Max.(one time only) |
| Soldering Time | 10 sec Max. | Soldering Time | 5sec 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
product.
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.
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.
