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.
The 8mm bi-color cylindrical LED is a reliable and versatile component designed for precise visual indication in modern electronics. Featuring a 3-pin configuration, this LED allows dual-color output within a compact cylindrical package, offering a powerful combination of brightness, durability, and energy efficiency. Engineers and manufacturers rely on the 8mm cylindrical LED for its ability to communicate multiple signal states in a single device—ideal for control panels, instrumentation, and consumer electronics.
As technology advances, compact visual indicators like the LED 8mm bi-color have become critical for efficient space utilization and clear signal visualization. With a robust epoxy lens and wide viewing angle, this LED is engineered to perform reliably under varying environmental conditions, maintaining color consistency and stability over time.
Key Features of the 8mm Bi-Color Cylindrical LED (3 Pin)
The 8mm cylindrical LED is built with advanced semiconductor technology and precision molding. Here are its defining features:
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Dual-Color Output
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Combines two LED chips (commonly red and green or red and yellow) in one housing, providing clear two-color or mixed-color illumination through polarity reversal or logic control.
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3-Pin Configuration
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The central lead acts as the common cathode or anode, allowing independent operation of each color or a combination of both for a third color tone.
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8mm Cylindrical Lens
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The cylindrical LED lens design ensures uniform brightness and improved optical directionality, perfect for panel indicators and instrument clusters.
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High Brightness with Low Power Consumption
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Provides vivid light output at minimal current, ensuring efficiency and long operating life.
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Durable Epoxy Encapsulation
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Resistant to vibration, impact, and moisture—ideal for rugged industrial environments.
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Wide Viewing Angle
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Ensures that the LED remains clearly visible even when viewed from off-axis angles, enhancing usability in display systems.
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ROHS Compliant
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Free from hazardous materials, meeting environmental safety standards.
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Available in Multiple Color Combinations
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Popular combinations include red/green, red/yellow, and red/blue for diverse application requirements.
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Applications of the 8mm Bi-Color Cylindrical LED
The 8mm bi-color cylindrical LED serves across various industries, providing efficient and intuitive visual communication. Its 3-pin configuration allows for flexible integration in systems that require two or more status indicators.
1. Industrial Control Panels
Used to indicate machine states—such as power, operation, or error—through distinct color signals. For instance, green may signify “normal operation” while red indicates “fault.”
2. Consumer Electronics
Found in audio amplifiers, home appliances, and battery chargers, the LED 8mm bi-color communicates power or operational status clearly to users.
3. Automotive Electronics
Used in dashboards and signaling systems for compact visual indicators that withstand vibration and temperature variations.
4. Communication Equipment
The cylindrical LED provides dual-color feedback in telecommunication devices, routers, and transmitters, indicating connection or signal quality.
5. Power Supply Indicators
Perfect for power supply units to signal ON/OFF or standby states in compact circuits.
6. Instrumentation Displays
Used in laboratory and medical instruments to convey calibration or operational conditions using distinct colors.
Benefits of Using 8mm Bi-Color Cylindrical LEDs
The 8mm cylindrical LED is more than a simple indicator—it’s an engineering solution that enhances clarity, functionality, and design flexibility.
Dual-Color Flexibility
Combines two functions in one component, reducing board space and wiring complexity.
Energy Efficiency
Consumes minimal current while delivering high-intensity light output, supporting sustainable designs.
Compact Design
The 8mm LED form factor fits tight PCB layouts and maintains aesthetic appeal in consumer electronics.
Cost Efficiency
Replacing two single LEDs with one dual-color cylindrical LED lowers manufacturing costs and assembly time.
Long Lifespan
Rated for over 50,000 operational hours with consistent brightness and stable color output.
Easy Integration
The 3-pin configuration simplifies circuit design, making it easy to integrate color control logic.
High Reliability
With strong epoxy encapsulation, it performs well in environments with vibration, dust, and moisture.
Case Studies
Case Study 1 – Industrial Equipment Manufacturer (Germany)
A German automation company integrated 8mm bi-color cylindrical LEDs into their machine control panels. The dual-color feature replaced two individual LEDs, saving 40% PCB space and simplifying assembly. Operators reported faster recognition of system states, reducing error response time.
Case Study 2 – Consumer Audio Brand (Japan)
A well-known audio manufacturer adopted the LED 8mm bi-color in amplifier indicator systems. The LEDs displayed red during standby and green during operation. The result was improved visual feedback and modern aesthetics without adding circuit complexity.
Case Study 3 – Power Supply Units (USA)
An American power electronics firm used cylindrical LEDs in power supply status indicators. The LED’s wide viewing angle made it ideal for compact enclosures while maintaining excellent visibility.
User Testimonials
David R., Electronics Engineer (UK):
„We’ve used the 8mm cylindrical LED for control panels for years—its dual-color versatility and durability make it a top performer in industrial settings.“
Kenta S., Product Developer (Japan):
„The LED 8mm bi-color offers perfect color transition with clear brightness control. It fits our compact PCB designs flawlessly.“
Maria L., Automation Specialist (Spain):
„This 3-pin cylindrical LED simplifies our design. We can indicate multiple system states in one location without adding extra components.“
Design and Integration Tips
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Proper Polarity Connection
Identify the central pin as common cathode/anode before wiring to avoid polarity errors. -
Current Limiting
Use resistors or constant current drivers to prevent overcurrent damage. -
Heat Management
Although efficient, maintaining ambient thermal stability ensures extended LED life. -
Diffused vs. Clear Lens Selection
Use diffused lenses for soft light or clear lenses for high-brightness focus. -
Soldering Considerations
Avoid excessive heat exposure to prevent internal chip stress.
Conclusion
The 8mm bi-color cylindrical LED (3-pin) offers a powerful combination of dual-color capability, energy efficiency, and long-term reliability. Its design flexibility and compact form make it ideal for engineers and manufacturers seeking high-performance illumination in tight spaces. Whether in industrial control panels, automotive dashboards, or modern electronic displays, the cylindrical LED continues to deliver consistent and visually effective performance.
With its ROHS-compliant materials, low power consumption, and wide-angle illumination, the LED 8mm bi-color is a future-ready component for any modern electronic design.





