Product Series information
Product Series |
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 Series No:BL-L217 Dimension 5 × 5.9 × 8.6 mm Description: ___________________________________________________________________________________________________________________________________________________ 2mm Round Type Bi-Color LED Lamps (3 Leads) – Compact Dual-Color Lighting for Modern ElectronicsThe 2mm round bi-color LED lamp with 3 leads is a compact, versatile, and energy-efficient lighting component designed for modern electronic systems that require multi-status indication in a small footprint. With dual-color output stored in a single round lens, this LED supports flexible visual communication, space-efficient circuit design, and low-power operation—all essential features for today’s consumer electronics, industrial controls, automotive dashboards, and smart devices. The 3-lead structure, available in either common anode or common cathode, allows engineers to easily manage two distinct colors without increasing PCB size. Offered with multiple lens types—diffused, transparent, and water clear—and various viewing angles, the 2mm bi-color LED delivers excellent adaptability for countless lighting scenarios. Manufactured with environmentally friendly materials and RoHS compliance, these LEDs ensure performance, safety, and long-term reliability. ⭐ Key Features of the 2mm Round Type Bi-Color LED (3 Leads)1. Dual-Color Output in a Compact 2mm PackageThe LED integrates two chips into a single miniature round lens, enabling:
This greatly reduces PCB footprint and simplifies mechanical design. 2. 3-Lead Structure: Easy Circuit IntegrationThe 3-pin configuration includes:
This structure allows flexible wiring for engineers and supports a wide range of circuit designs. 3. Flexible Viewing Angle OptionsAvailable viewing angles include:
This allows product designers to match the LED’s light dispersion to the application. 4. Multiple Lens TypesYou may choose from:
Engineers can optimize light behavior for transparency, diffusion, or maximum focus. 5. IC Compatible / Low-Current OperationThe LED is optimized for electronics requiring:
This reduces power consumption and heat generation, increasing system reliability. 6. Common Anode or Common Cathode DesignAvailable configurations:
Choosing the right option simplifies system wiring and improves performance. 7. Environmentally Friendly – RoHS CompliantThe LED is manufactured under strict environmental standards:
 ⭐ Applications of 2mm Round Bi-Color 3-Lead LEDs1. Indicator LightsPerfect for:
Dual-color capability allows one LED to show “on/off,” “charging/full,” and other states. 2. Decorative & Ambient LightingUsed in:
Bi-color illumination adds aesthetic variety and dynamic effects. 3. Automotive Dashboard & Control PanelsIdeal for:
Different colors help drivers easily identify system conditions. 4. Consumer ElectronicsCommon in:
One LED = multiple color signals → Compact & efficient designs. 5. Safety & Warning SystemsUsed for:
Dual-color output improves visibility and communication. 6. Entertainment, Stage & Event LightingUsed for:
The brightness and clarity make it a smart choice for visual displays. 7. Educational, DIY & Maker ProjectsPerfect for:
The two-color feature teaches LED polarity, multiplexing, and status-lighting concepts. 8. General Lighting UsesIn any environment requiring compact, dual-color indication or multi-mode status lighting. ⭐ Benefits of Using 2mm Round Bi-Color LEDs
Engineers benefit from reduced cost, simplified PCB layouts, and enhanced visual feedback capabilities. ⭐ Case StudyA company manufacturing compact handheld medical analyzers needed:
By integrating a 2mm bi-color LED (3-pin) in water-clear lens, they achieved:
The LED improved usability, reduced PCB complexity, and increased product reliability. ⭐ User TestimonialsElectronics Engineer – USA"Compact, bright, and easy to integrate. Bi-color functionality helps reduce component count significantly." Automotive Design Specialist – UK"Perfect for dashboard indicators. The viewing angle options help us fine-tune the light direction." DIY Maker – Australia"The 3-pin setup is great for Arduino projects. Simple wiring and excellent brightness." ⭐ ConclusionThe 2mm round type bi-color LED lamp with 3 leads delivers exceptional performance in a compact footprint. Its dual-color capability, flexible lens and viewing angle options, IC compatibility, and environmental safety make it an ideal solution for modern, space-conscious electronics. From industrial panels and consumer devices to automotive dashboards and creative lighting installations, this LED offers reliability, efficiency, and flexibility for countless applications. ___________________________________________________________________________________________________________________________________________________ Dimension and Circuit Drawing:  |
Related Article List
Related Information
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.
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.
