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 (7×4×7mm) – Product Overview
The 3mm LED CBI, single level indicator is engineered for high-precision panel applications that require reliable illumination, compact form factor, and stable electrical performance. Designed with a 7×4×7mm housing, this single-level circuit board indicator delivers superior visibility and long-term durability, making it ideal for communication equipment, control panels, instrumentation, and compact interface modules.
With a versatile LED package and many color combinations available, this 3mm LED CBI provides the flexibility required by electronics engineers, industrial designers, and purchasing professionals who need dependable, uniform status indication in tight PCB layouts. Its molded black housing enhances contrast, ensuring high legibility in bright and low-light environments alike.
Key Features
✔ Single-Level 3mm LED CBI
The unit features a single light position, ideal for clear, focused indication where simple and direct visual signaling is required.
✔ Compact 7×4×7mm Footprint
Its small housing allows easy integration into:
-
Dense PCB assemblies
-
Narrow control panels
-
Portable devices
-
Miniature interface modules
The compact size ensures efficient use of board real estate without compromising brightness or visibility.
✔ Many Color Combinations Available
Available in a full spectrum of monochrome and bicolor options, including:
-
Red
-
Green
-
Yellow
-
Blue
-
White
This enables compatibility with multi-signal systems, standardized color codes, and product-specific visual requirements.
✔ High-Contrast Black Housing
The molded black PA66 housing improves optical clarity by:
-
Reducing light bleed
-
Increasing contrast
-
Enhancing ON/OFF visibility
Ideal for indoor/outdoor panel indication.
✔ Pre-Formed Leads for PCB Alignment
Engineered for quick assembly, the pre-formed leads provide:
-
Accurate PCB fit
-
Consistent panel alignment
-
Reduced assembly time
-
Lower risk of mounting errors
A reliable solution for high-volume manufacturing lines.
✔ UL 94V-0 Rated Housing
Constructed with flame-retardant PA66 for enhanced safety and durability in industrial and consumer electronics.
✔ Long Life, Stable Output
The LED chip delivers:
-
Uniform brightness
-
Long operating lifetime
-
Excellent reliability under continuous use
Perfect for mission-critical equipment and long-term installations.
✔ Environmentally Friendly
-
Halogen-free
-
RoHS compliant
Ensures safe integration into global electronics markets.
Applications
The 3mm LED CBI, single level is widely used across multiple industries due to its compact size and dependable illumination characteristics.
Ideal for:
-
Communication equipment (routers, switches, network hardware)
-
Instrumentation & control panels
-
Consumer electronics indicators
-
Industrial machinery status displays
-
Switch & keypad backlighting
-
Compact signage and embedded display modules
-
Low-power portable device indicators
Whether used as a simple ON/OFF indicator or part of a multi-status system, this LED CBI ensures crisp visibility and consistent performance.
Benefits & Advantages
1. High Visibility in Compact Spaces
Its optical clarity and focused beam ensure visibility even when installed in dense or dim environments.
2. Easy Integration
The pre-formed pins and small housing simplify manufacturing and assembly.
3. Enhanced Durability
The robust construction withstands frequent operation, temperature changes, and mechanical stress.
4. Multi-Color Availability
Supports universal color coding and flexible design requirements.
5. Industrial-Grade Reliability
Suitable for applications requiring continuous, stable operation.

Case Study: Network Status Panel Upgrade
A UK-based communications equipment manufacturer replaced their outdated indicator lamps with 3mm single-level LED CBI modules to address poor visibility and inconsistent alignment. After integrating this compact 7×4×7mm solution:
-
Assembly time decreased by 28%
-
Indicator accuracy and alignment improved by 100%
-
Panel readability increased noticeably due to the black housing contrast
-
Their customers reported fewer misread indicator issues
The project led to the adoption of this 3mm CBI across the company’s entire product line.
User Testimonials
⭐ David P., Electronics Engineer (USA)
„The 3mm LED CBI delivered excellent visibility even in tight board spaces. The pre-formed leads saved us assembly time and ensured perfect alignment.“
⭐ Laura M., Industrial Controls Designer (UK)
„Compact, reliable, and bright. We use these CBIs in nearly all of our indicators now. The color options are a major advantage.“
⭐ Kevin S., Purchasing Manager
„A cost-effective component with consistent quality. RoHS compliance and multiple color configurations make sourcing much easier.“






