8mm Bi-color LED diode, 3 pin

Series No:





7.9 x 9.15 x 11







In the dynamic landscape of electronic components, the 8mm bi-color LED diode, 3 pin emerges as a key player, especially when it comes to versatile lighting solutions. Known among industry professionals as LED lamba, these diodes offer enhanced functionality with the ability to display multiple colors through a single unit. This article explores the essential features, practical applications, significant benefits, and includes testimonials and case studies that underscore the value of these LEDs in professional settings.

Features of 8mm Bi-Color LED Diodes with 3 Pins

The 8mm bi-color LED diodes are engineered for flexibility, incorporating three pins that facilitate easier integration into various electronic circuits. This tri-pin configuration allows for greater control over color blending and switching, making them ideal for applications that require customized lighting solutions. The LEDs are capable of emitting light in two different wavelengths, which can include combinations like red-green, blue-red, or even include UV and infrared LEDs.

Applications of 8mm Bi-Color LED Diodes

The versatility of these multi-color LEDs makes them suitable for numerous applications:

  • Consumer Electronics: Used in devices to indicate power, status, or alerts through different colors.
  • Automotive: Employed in dashboard and ambient lighting to enhance visual aesthetics and functionality.
  • Healthcare Devices: Integrated into equipment where varied color indications are crucial for operation.

Infrared LEDs are particularly valuable in security devices and remote controls, whereas UV LEDs are increasingly used in sterilization and medical diagnostic tools, demonstrating the broad utility of these diodes.

Benefits of Using 8mm Bi-Color LED Diodes

Adopting 8mm bi-color LED diodes with 3 pins offers multiple advantages:

  • Enhanced Design Flexibility: Allows product designers to incorporate multiple functionalities into a single LED.
  • Cost-Effectiveness: Reduces the number of components required for multi-color signaling, lowering overall manufacturing costs.
  • Energy Efficiency: Like most LEDs, these diodes consume less power, contributing to energy savings and sustainability.

Case Studies: Implementing 8mm Bi-Color LED Diodes

One compelling case study involves a leading smartphone manufacturer that integrated these multi-color LEDs into their devices for notification alerts, significantly enhancing user interaction without adding bulk to the device’s design. Another example includes their use in home automation systems, where color-coded alerts improve user experience and system functionality.

User Testimonials

Feedback from industry professionals further validates the effectiveness of these diodes. A senior electronics engineer noted, “The 3-pin 8mm LEDs have revolutionized our design process, allowing us to create more engaging and intuitive products.” An equipment purchaser for a major healthcare provider commented, “The reliability and dual-color functionality of these LEDs have greatly enhanced the operational efficiency of our medical devices.”

Conclusion: The Bright Future of 8mm Bi-Color LED Diodes

The 8mm bi-color LED diode, 3 pin, represents a significant advancement in LED technology, offering substantial benefits across various industries. Their continued development and integration into new sectors are poised to create even more innovative solutions.

Call to Action Are you ready to enhance your electronic designs with versatile 8mm bi-color LED diodes? Contact us today to learn more about our products and how they can transform your projects!

8mm Bi-color LED diode, 3 pin
8mm Bi-color LED diode, 3 pin


  • 8mm Round LED Lamps: These LEDs are larger in size with a round shape, providing substantial visibility and brightness.
  • Bi-Color: Capable of emitting light in two different colors, offering versatility in signaling and display applications.
  • Choice of Various Viewing Angles: Available with different viewing angles to suit a range of application needs, allowing for flexibility in how the light is dispersed.
  • Diffused, Transparent, and Water Clear Lens Options: The LEDs come with various lens types, including diffused (for softer light dispersion), transparent (for clearer, more direct light), and water clear (for maximum brightness and clarity).
  • IC Compatible / Low Current Capability: Can be easily integrated with various ICs (integrated circuits) and designed for low current operation, enhancing energy efficiency.
  • RoHS Compliance: Manufactured in accordance with the Restriction of Hazardous Substances directive, ensuring environmentally safer production and use.


  • Indicator Lights and Signals: Ideal for use as indicator lights in various electronic devices, appliances, and machinery, where the bi-color feature allows for multiple signaling options.
  • Decorative Lighting: Suitable for decorative lighting applications in architectural designs, event setups, or artistic installations where the size and bi-color functionality can be creatively utilized.
  • Automotive Applications: Can be used in automotive dashboards, control panels, and exterior lights for indicating different statuses or functions.
  • Control Panels and Instrumentation: Useful in control panels and instrumentation for industrial machinery and equipment, offering clear and distinct signaling with dual colors.
  • Consumer Electronics: Applicable in personal electronic devices for status indicators or aesthetic enhancements.
  • Safety and Warning Signals: Ideal for safety signs, emergency lighting, and warning signals in industrial settings, where the visibility and dual-color functionality are crucial.
  • Entertainment and Stage Lighting: Suitable for use in entertainment and stage lighting designs, where the size and bi-color effects can enhance the visual experience.
  • Educational and Hobbyist Projects: Often used in DIY electronics, educational projects, and hobbyist applications due to their ease of use and the visual impact of bi-color lighting.

RoHs Compliance, Pb-free              Anti-Static Attention

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Package configuration & Internal circuit diagram
8mm Bi-color LED diode, 3 pin

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.
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