3mm Cylindrical Bi-Color LED CBI — Single-Level Panel Indicator (10×5×7 mm)

The 3mm cylindrical LED bi-color CBI is a compact, high-performance indicator solution engineered for modern electronic panels that require reliable, multi-status visual signaling. Designed with a 3-lead bi-color configuration, this component allows devices to display two independent colors—or blend them for additional status modes—while maintaining excellent compatibility with control, instrumentation, and communication systems.

In this single-level configuration, the circuit board indicator (CBI) form factor ensures seamless integration into tight spaces, making it ideal for highly condensed layouts. Whether used in commercial electronics, industrial equipment, or consumer appliances, this bi-color 3mm LED provides clarity, durability, and long-term stability.

Key Features of the 3mm Cylindrical Bi-Color LED CBI

✔ Single-Level CBI Format (10×5×7 mm)

The compact 10 × 5 × 7 mm structure offers a standardized footprint for panel indication. Its shape ensures accurate fit in dense PCBs, while the rectangular housing stabilizes visual contrast.

✔ 3-Lead Bi-Color Operation

The LED includes three leads, supporting:

• Independent color control

• Alternate dual-color signaling

• Mixed-color operation (when driven appropriately)

This gives system designers more flexibility to define unique indication states such as standby, fault, ready, alert, or active modes.

✔ Enhanced Visibility & High Contrast

A black PA66 housing enhances ON/OFF visibility, making it easier to read the indicator even in bright industrial environments.

✔ Durable & Safe

• UL 94V-0 rated PA66 housing

• Halogen-free construction

• RoHS compliant

• Rugged resistance to temperature, vibration, and long operating cycles

✔ Precision Panel Mounting

Pre-formed leads ensure:

• Consistent height

• Reliable PCB alignment

• Fast insertion and assembly

• Reduced soldering errors

This makes the component ideal for automated assembly lines and high-volume production.

Applications of the 3mm Cylindrical Bi-Color CBI LED

✔ Multi-Status Indication

Commonly used to indicate:

• Standby

• Warning

• Running mode

• Active / Passive state

• Dual-function notifications

✔ Control & Instrumentation Panels

Found in:

• Communication equipment

• Laboratory instruments

• Utility meters

• Automation controllers

✔ Keypad & Switch Backlighting

Its bi-color capability allows a single indicator position to represent multiple states, saving PCB space.

✔ Compact Signage & Display Modules

Ideal for creating low-power miniature displays or stacked status lamps.

✔ Industrial & Consumer Electronics

Typical uses include:

• Consumer appliances

• Testing equipment

• Portable devices

• Industrial monitoring systems

Product Selection Guide

BL-LA2D3-F1004BB

BL-LA2D3-F1004BG

BL-LA2D3-F1004BY

BL-LA2D3-F1004GB

BL-LA2D3-F1004GG

BL-LA2D3-F1004GR

BL-LA2D3-F1004G-RG

LED1

LED2 (Bi-color RG)

BL-LA2D3-F1004GX

BL-LA2D3-F1004GY

BL-LA2D3-F1004RB

BL-LA2D3-F1004RE

BL-LA2D3-F1004RG

BL-LA2D3-F1004RG-RG (Dual Bi-color)

LED1 (RG)

LED2 (RG)

BL-LA2D3-F1004RG-Y

LED1: 🟥🟩 (RG)
LED2: 🟨 (Yellow)

BL-LA2D3-F1004RG-YG

LED1: 🟥🟩 (RG)
LED2: 🟨🟩 (YG)

BL-LA2D3-F1004RR

BL-LA2D3-F1004RX

LED1: 🟥
LED2: ⬛

BL-LA2D3-F1004RY

LED1: 🟥
LED2: 🟨

BL-LA2D3-F1004WW

BL-LA2D3-F1004XB

BL-LA2D3-F1004XG

BL-LA2D3-F1004XR

BL-LA2D3-F1004X-RG

LED1: 🟥
LED2: 🟥🟩 (RG)

BL-LA2D3-F1004XY

BL-LA2D3-F1004YG

LED1: 🟨
LED2: 🟩

BL-LA2D3-F1004YG-B

LED1: 🟨🟩 (YG)
LED2: 🟦

BL-LA2D3-F1004YG-R

LED1: 🟨🟩 (YG)
LED2: 🟥

BL-LA2D3-F1004YG-YG

Both LEDs: 🟨🟩 (YG)

BL-LA2D3-F1004YR

LED1: 🟨
LED2: 🟥

BL-LA2D3-F1004YX

LED1: 🟨
LED2: ⬛

BL-LA2D3-F1004YY

Color Combination Summary (Condensed Overview)

This LED series supports a wide portfolio of bi-color combinations, including:

• Red + Green (standard status indication)

• Red + Yellow

• Red + Blue

• Green + Yellow

• Blue + Yellow

• Dual-same-color variants (e.g., Green + Green, Red + Red, Yellow + Yellow)

• Mixed RGB-derived pairs for enhanced visual contrast

All combinations feature:

• High luminous intensity

• Wide 60° viewing angle

• Stable forward voltage characteristics

• Material options such as InGaN, GaP/GaP, AlGaAs, and GaAsP/GaP depending on color

These options allow designers to choose the most suitable indicator color scheme for their device or instrument.

Benefits for Engineers & Product Designers

✔ Space-saving, multi-status signaling

A single indicator handles multiple states, reducing panel clutter.

✔ Cost-efficient

One LED replaces two separate single-color lamps.

✔ High reliability

Stable luminous output ensures clear signal visibility over years of operation.

✔ Flexible electrical configuration

Bi-color LEDs support a range of driving circuits and polarity options.

✔ Enhances user experience

Clear color changes instantly communicate system states to the operator.

Case Study: Upgrading Multi-State Industrial Panels

A global automation equipment manufacturer needed a compact status indicator to reduce the number of indicators on their control panels. By replacing three single-color LEDs with this 3mm bi-color CBI, they achieved:

• 42% reduction in panel space

• Lower BOM cost

• Improved operator clarity

• Faster PCB assembly due to pre-formed leads

The change enabled easier maintenance and better product aesthetics without sacrificing luminous performance.

User Testimonial

“The 3mm bi-color CBI solved our multi-status signaling problem in a compact footprint. The contrast is excellent, and the pre-formed leads save time on every assembly batch.”
— Lead Electronics Engineer, Industrial Controls Manufacturer

Conclusion

The 3mm Cylindrical Bi-Color LED CBI (10×5×7 mm) is a trusted and efficient solution for any application requiring accurate, multi-state visual indication. Its compact size, dual-color capability, long life, and robust housing make it ideal for modern electronic systems across industrial, commercial, and consumer industries.

If you’re developing advanced panel indicators or compact instrumentation, this LED offers the performance and flexibility your design demands.

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