Through hole LED
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Weight:(g/pcs)
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Specification:
Datasheet Inquiry
Description:
2mm Flat Top Cylindrical Bi-Color LED Diode (3-Pin) – Compact Dual-Color Indicator for Precision Electronics
The 2mm flat top cylindrical bi-color LED diode (3 pin) is engineered for compact electronic devices that require accurate multi-status indication in minimal space. Designed with a flat-top cylindrical lens, it delivers uniform, wide-angle illumination and excellent readability even when viewed from the side.
This component integrates two colors in one LED package, offering a versatile signal solution for advanced electronics, instrumentation panels, and compact consumer products. With a 3-pin configuration—two independent LED chips and one common lead (anode or cathode)—it supports flexible control and compatibility with low-voltage digital circuits, microcontrollers, and IC-based systems.
Its small size, efficient optical output, and robust construction make it a preferred LED for engineers, product designers, and OEM manufacturers requiring reliable, space-saving dual-color indication.
Key Features
1. Flat-Top Cylindrical Lens for Enhanced Visibility
Unlike round-lens LEDs, the flat-top design:
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Produces a uniform, evenly distributed light
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Enhances surface-mount alignment and indicator panel clarity
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Offers a wider viewing angle for improved readability
This is ideal for dashboard graphs, control panels, and compact electronic displays.
2. Bi-Color Output with 3-Pin Configuration
The diode includes:
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Lead 1: Color A
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Lead 2: Color B
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Common lead: shared cathode or anode
This provides:
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Independent color control
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Smooth color switching or blending
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Minimal wiring complexity
The dual-color capability allows one LED to communicate multiple statuses, minimizing PCB component count.
3. Low Current / IC Compatibility
Engineered for low-power systems:
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Operates effectively at low current
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Compatible with microcontroller GPIO pins
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Generates minimal heat
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Suitable for battery-driven or portable devices
This makes it ideal for IoT devices, wearables, and compact consumer electronics.
4. Multiple Viewing Angle Options
Available with various beam angles, allowing designers to select:
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Narrow light beams for focused indicators
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Wide beams for panel illumination
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Mid-range illumination for mixed applications
5. Lens Options for Visual Performance
Choose from:
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Diffused lens for soft, even light distribution
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Transparent lens for bright, direct light
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Water-clear lens for maximum brightness and sharp contrast
This ensures optimal visibility regardless of environment.
6. Environmentally Friendly & RoHS-Compliant
The LED follows RoHS safety standards:
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No hazardous materials
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Safe for global consumer and industrial markets
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Compliant with international manufacturing requirements
Applications
1. Electronic Indicator Lights
Perfect for dual-state or multi-state signaling in:
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Control panels
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Test instruments
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Power supplies
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Circuit indicators
The bi-color capability reduces space requirements while enhancing clarity.
2. Consumer Electronics
Widely used in:
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Remote controls
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Chargers
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Smart gadgets
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Audio devices
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IoT modules
Its small size and flat top make it ideal for slim designs.
3. Automotive and Transportation
Used for:
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Dashboard status indicators
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Backlit buttons
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Various signaling icons
Bi-color output supports multi-condition alerts in a single LED.
4. Industrial Equipment
Ideal for:
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Factory automation panels
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Diagnostic instruments
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Monitoring systems
The robust cylindrical body withstands industrial environments.
5. Safety & Warning Systems
Suitable for:
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Emergency indicator circuits
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Alert systems
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Warning icons
Dual-color output provides intuitive visual communication.
6. Educational & DIY Electronics
Popular in:
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Prototyping
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Arduino and Raspberry Pi projects
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STEM kits
The 3-pin bi-color design helps learners understand LED polarity and signal control.
7. Decorative & Creative Uses
Used in:
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Small displays
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LED pixel effects
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Light-based crafts
The flat top ensures smooth lighting transitions for artistic applications.
Benefits
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Space-saving dual-color functionality
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High brightness in a compact 2mm format
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Flexible electrical configuration (common anode/cathode)
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Wide viewing angle with flat-top optics
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Low power consumption with long service life
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Consistent and stable illumination performance
Case Study
A wearable device manufacturer integrated the 2mm flat-top bi-color LED into a compact health monitoring device. The LED served as a two-status indicator—green for normal operation and red for alert notifications. Its small footprint and low power consumption allowed seamless integration without increasing device thickness or battery load. This reduced overall BOM (Bill of Materials) cost by 18% by eliminating the need for multiple LEDs.
User Testimonial
“The 2mm flat-top bi-color LED helped us redesign our control interface significantly. Its brightness, compact size, and dual-color simplicity allowed us to reduce our panel indicator count and improve clarity for end-users.”
— Electronics Design Engineer, Industrial Automation Sector
Conclusion
The 2mm flat top cylindrical bi-color LED diode (3 pin) is a high-efficiency, compact, and versatile component that meets the modern requirements of electronics manufacturing and product innovation. Delivering excellent brightness, two-color indication, a flexible viewing angle, and durable construction, it is ideal for everything from consumer devices to industrial systems.
Manufacturers seeking a reliable, space-efficient indicator solution will find this LED to be a standout choice for long-term 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.
