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.
⭐ 3mm LED CBI, Single Level — High-Performance Circuit Board Indicator for Compact Panels
The 3mm LED CBI (Circuit Board Indicator), single level, is one of the most widely used panel-mount light indicators in modern electronic systems. Designed for compact layouts and reliable long-term operation, this single-level CBI module integrates a 3mm LED inside a precision-molded housing for accurate alignment and superior visibility.
Built for OEMs, engineers, and system integrators, the 3mm LED CBI delivers high contrast, stable brightness, and consistent mechanical alignment, making it ideal for control systems, instrumentation devices, communication equipment, and appliance indicators.
Available in many color combinations—including Red, Green, Yellow, Blue, White, Bi-color, and RGB—this single-level CBI offers unmatched flexibility for multi-status signaling applications.
???? Key Features of the 3mm LED CBI (Single Level)
✔ Precision Single-Level PCB Alignment
The integrated housing and pre-formed leads ensure the LED sits perfectly aligned on the PCB, eliminating manual adjustments and improving assembly speed.
✔ High-Contrast Black Housing
The black rectangular housing increases the contrast between ON/OFF states, significantly improving visibility for users, especially in bright environments.
✔ Multiple Color Options
Choose from a wide array of LED colors and combinations, such as:
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Single Colors: Red, Green, Yellow, Blue, White
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Bi-color: Red/Green, Red/Yellow, Red/Blue
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Tri-color & RGB Options for dynamic or multi-mode indicators
These options allow designers to create intuitive and clear status signals.
✔ Durable, Safe, and Certified
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UL 94V-0 rated PA66 housing — excellent heat and flame resistance
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RoHS compliant & Halogen-free — safe for global manufacturing
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Long-life LED chips — stable brightness throughout the product’s lifetime
✔ Compact 5×5×9mm Module Size
The small footprint makes it perfect for:
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Dense instrumentation panels
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Consumer electronics
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Space-limited control devices
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Multi-indicator clusters
⚙ Technical Summary (General)
Although available in many configurations, standard models feature:
| Feature | Specification |
|---|---|
| LED Type | 3mm Round LED |
| CBI Configuration | Single Level |
| Housing Material | UL 94V-0 PA66 |
| Typical Dimensions | 5 × 5 × 9 mm |
| Mounting | Pre-formed leads for PCB alignment |
| Lens Styles | Diffused / Water Clear / Transparent |
| Lead Plating | Sn-plated or equivalent |
| Compliance | RoHS & Halogen-free |
✔ Color Combination Summary
This product line supports:
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Single colors (R/G/B/Y/W)
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Bi-color LEDs (R/G, R/Y, G/Y, R/B)
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Tri-color options
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RGB multi-color setups
Each combination features tuned brightness, wavelength accuracy, and uniform output for reliable panel indication.
???? Applications
Industrial & Instrumentation
Perfect for multi-status panels, mode indicators, test equipment displays, and power/alert status signals.
Communication Devices
Used in routers, hubs, switches, telecom systems, and RF instruments for clear function indication.
Consumer Electronics
Ideal for washing machines, water purifiers, refrigerators, audio systems, gaming accessories, and more.
Control Panels & Interface Backlighting
Useful in control boxes, switchboards, keypads, and operator panels needing compact visual indicators.
Compact Display Modules
Fits well into low-power digital displays, small signage, and portable or handheld devices.
⭐ Benefits & Advantages
???? Fast & Accurate Assembly
The pre-formed leads reduce assembly time, ensure perfect vertical alignment, and help avoid soldering errors.
???? Flexible Color Signaling
Multi-color capabilities allow one LED window to handle multiple states such as:
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Power On
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Warning
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Active Mode
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Error Status
???? Low Power Consumption
LEDs are optimized for high brightness at low current, making them suitable for battery-powered devices.
???? Long LED Lifetime
High-quality chips ensure stable luminous output, essential for safety-critical and commercial equipment.
???? Superior Reliability
With flame-retardant housing, RoHS compliance, and robust LED internals, this CBI delivers consistent performance even under heavy-duty operation.

???? Case Study: Industrial Controller Manufacturer
A European automation company integrated the 3mm single-level LED CBI into their modular PLC diagnostic panel. By switching from standard THT LEDs to CBI modules:
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Assembly time was reduced by 34%
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Misalignment defects dropped to 0.5%
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Visual clarity improved dramatically due to the black housing and controlled viewing angle
The manufacturer implemented different colors for different controller modes (Green = Run, Yellow = Warning, Red = Error), improving user response times.
⭐ User Testimonials
???? James L., Electronics Engineer (USA)
“The 3mm LED CBI saved us so much time during assembly. The alignment is perfect every time, and the visibility on the control panels is excellent.”
???? M. Turner, Product Manager (UK)
“The small size and color options allowed us to redesign our interface to be cleaner and easier to understand. Highly reliable and consistent.”
???? OEM Customer Review
“Having so many color configurations makes it easy to standardize across multiple products. RoHS compliance and PA66 housing give us confidence in long-term durability.”
???? Upgrade Your Panel Indicators Today
If you need compact, reliable, and high-visibility status indicators, the 3mm LED CBI (Single Level) is an ideal solution for industrial, commercial, and consumer electronics.
Contact us to request samples, datasheets, or bulk pricing.





