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 Bi-Level LED CBI (8×4×10 mm) – Dual-Level Circuit Board Indicator
The 3mm Bi-Level LED CBI is a compact, high-performance circuit board indicator designed for applications that require two vertically stacked light positions within a small footprint. With an 8 × 4 × 10 mm housing, it enables dense board layouts, multi-status signaling, and clean vertical alignment—making it ideal for industrial, commercial, and consumer electronic systems.
Engineered with a dual-level CBI (Circuit Board Indicator) structure, this indicator provides reliable, long-life illumination through precision-formed leads and a high-contrast black housing. It supports a wide selection of single-color, bi-color, and multi-color combinations, allowing engineers and product designers to integrate flexible visual-status displays into their equipment.
Key Features
Bi-Level Indicator Design
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Two independent LED indicators arranged vertically.
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Perfect for multi-step or multi-status condition reporting.
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Saves PCB space while increasing visual functionality.
3mm LED Package
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Standard 3mm round LED shape for universal compatibility.
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Excellent luminous performance in both indoor and industrial environments.
Precision Pre-Formed Leads
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Ensures perfect PCB alignment between the two indicator levels.
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Reduces assembly time and improves manufacturing repeatability.
High-Contrast Black Housing
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Enhances visibility of ON/OFF status indications.
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Ensures uniform appearance across large deployment quantities.
Long-Life, High-Reliability LED Chips
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Stable illumination and consistent brightness.
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Ideal for devices requiring continuous or long-term indication.
Industrial-Grade Materials
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UL 94V-0 rated PA66 housing for flame-retardant safety.
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Halogen-free & RoHS compliant for environmental safety.
Applications
Industrial & Instrumentation Panels
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Multi-status machine indicators
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Fault, warning, and operation-mode displays
Telecommunication Equipment
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Dual-level signal indicators
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Port activity and diagnostic status lighting
Test & Measurement Devices
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Vertical multi-point status displays
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Power, range, and operational mode flags
Control Systems & Keypad Backlighting
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Compact light modules for switches or keypads
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Status indicators for PLCs, relays, and control modules
Consumer & Commercial Electronics
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Compact signal indicators for appliances and electronic devices

Summary of Color Combinations
The 3mm Bi-Level LED CBI supports a wide range of single-color and dual-color combinations, allowing it to adapt to various design requirements. Available options include:
Single-Color Options
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Red
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Green
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Blue
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Yellow
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White
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Amber
Bi-Color Options
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Red + Green
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Red + Yellow
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Red + Blue
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Green + Yellow
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Green + Blue
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Yellow + Blue
Dual-Independent or Mixed Level Combinations
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Each level can be a different color.
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Dual-same color (e.g., Red/Red, Green/Green) for redundant designs.
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Multi-chip combinations (RG, YG, etc.) for mixed-output applications.
Benefits
1. Space Efficiency
The dual-level stacked design reduces PCB footprint while maintaining clear, separated indicator positions.
2. Versatility
With numerous color combinations and lens types available, the indicator fits nearly any design requirement.
3. High Reliability
Industrial-grade LED chips and flame-retardant housing ensure safe, long-term use in demanding environments.
4. Enhanced Visibility
Black housing greatly improves contrast, resulting in clearer on/off visibility under various lighting conditions.
5. Ease of Assembly
Pre-formed leads allow fast, error-free insertion into PCB slots—reducing manufacturing labor.
User Testimonials
“Perfect for compact status displays.”
An instrumentation engineer from Texas notes that the bi-level configuration helped reduce panel size while adding more indicator points.
“Color options make it extremely flexible.”
A UK electronics designer highlights the advantage of choosing different colors for each level for intuitive multi-status display.
“Excellent brightness and contrast.”
Manufacturing operators reported clear visibility even in high-glare factory environments.
Conclusion
The 3mm Bi-Level LED CBI is a highly adaptable and reliable circuit board indicator designed for engineers seeking compact, multi-status visual signaling solutions. With precision housing, long-life LED chips, and a wide array of color configurations, it is an excellent choice for industrial, consumer, and commercial applications requiring clear, space-efficient indicators.
If you need dependable, compact dual-level indicators for your next design, this CBI provides outstanding performance and flexibility.






