Through hole LED
Series No:
Weight:(g/pcs)
Dimension:(mm)
Package:
Specification:
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Description:
10mm Flat Top Cylindrical LED Diode, Bi-Color, 2 Leads – Multi-Color Combinations
The 10mm flat top cylindrical LED diode, bi-color, 2 leads is a versatile light component designed for applications requiring vivid color output, dual-color signaling, and wide viewing angles. Available in many color combinations—including Red + Blue, Red + Green, Red + Yellow, and others—this LED is offered in both bi-polar LED and bi-color LED configurations. With its large 10mm diameter, flat-top cylindrical lens, and bright optical performance, this LED is ideal for engineers and manufacturers seeking reliable and attention-grabbing indication solutions.
Key Features
✔ Dual-Color Output (2 Leads, Multiple Combinations)
This 10mm bi-color LED allows two colors to be displayed from a single package. Popular combinations such as red/blue, red/green, red/yellow, and customized pairings support diverse design requirements.
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Bi-color LED: two colors share a common lead
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Bi-polar LED: color changes with reverse polarity
This simplifies PCB layout while offering dynamic visual indication.
✔ Flat Top Cylindrical Lens for Uniform Light
The flat top lens provides:
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Even illumination
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Wide viewing angle performance
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Better diffusion for panel indicators
The cylindrical body ensures consistent optical output and enhances brightness when viewed from the front or at an angle.
✔ Large 10mm Size for High Visibility
Compared with 3mm or 5mm LEDs, this 10mm LED diode delivers far greater optical presence, making it suitable for applications that require:
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Long-distance visibility
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Clear status display
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Decorative and accent lighting
✔ Available Lens Types
To accommodate different lighting effects, the LED is available in:
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Diffused lens – soft, uniform output
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Transparent lens – crisp, bright illumination
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Water-clear lens – maximum brightness
✔ Low Current / IC Compatibility
Engineered for modern electronics, this LED offers:
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Low power consumption
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Direct compatibility with driver ICs and microcontrollers
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Stable response even at low current levels
✔ RoHS Compliant
Manufactured to meet global environmental standards, ensuring safe and eco-friendly performance.

Applications
1. Indicator Lights
Perfect for dashboards, control panels, and machine indicators where two-color functionality enhances status communication.
2. Consumer Electronics
Used in device status lights, battery indicators, charging signals, gaming devices, and more.
3. Automotive and Transportation
Ideal for instrument clusters, door indicators, switch illumination, and signaling lights.
4. Industrial Equipment
Enhances operator interfaces, safety indicators, and diagnostic systems requiring high visibility.
5. Decorative & Ambient Lighting
Multi-color options allow it to be used in custom lighting builds, artistic installations, and design accents.
6. Safety & Warning Systems
Dual colors enable clear contrast between normal, warning, or error states.
7. Educational / DIY Projects
Popular among hobbyists for prototyping, breadboard experiments, and microcontroller projects (Arduino, ESP32, Raspberry Pi).
Benefits
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Two colors in one package reduces PCB complexity.
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Enhanced visibility due to 10mm diameter.
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Multiple lens types allow customization based on brightness needs.
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Energy efficient, suitable for battery-powered devices.
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Durable epoxy resin construction ensures long operating life.
Example Case Study
Industrial Control Panel Upgrade
A manufacturing company replaced traditional incandescent indicators with 10mm flat-top bi-color LEDs (red/green).
Results:
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65% reduction in power consumption
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Brighter visibility under factory lighting
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Simplified wiring by using 2-lead bi-polar configuration
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Improved operator response time due to clearer dual-color signaling
User Testimonials
✔ Alex – Electronics Engineer
“The 10mm bi-color LEDs offer outstanding brightness. The red/green version is perfect for machine-state indication on our PCBs.”
✔ Mark – Automotive Technician
“Using the flat-top lens in dashboards gives a wide visibility angle. The bi-polar function is extremely convenient.”
✔ Linda – Hobbyist Maker
“These LEDs are great for DIY signal projects. I love the red/yellow combo—super bright and reliable.”
Conclusion
The 10mm flat top cylindrical LED diode (bi-color, 2 leads) is a high-performance component designed for visibility, versatility, and efficiency. Its multiple color combinations, flat-top design, and compatibility with IC-driven circuits make it an excellent choice for industrial, commercial, and consumer electronic applications. Whether you need strong visual indication, flexible color output, or attractive lighting effects, this LED provides a dependable and cost-effective solution.

Electrical-optical characteristics:
Package configuration & Internal circuit diagram
Obtain 3D specification files
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:
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.





