Article No:

Color:

Weight:(g/pcs)

0.7

Dimension:(mm)

4.6 x 8.1 x 9.7

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Product Series information

Product Series
Series No:bl-la2d3-b1004 Specification Download: Dimension 7.9 × 9.15 × 11 mm Description: ___________________________________________________________________________________________________________________________________________________ 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 Two independent LED indicators arranged vertically. Perfect for multi-step or multi-status condition reporting. Saves PCB space while increasing visual functionality. 3mm LED Package Standard 3mm round LED shape for universal compatibility. Excellent luminous performance in both indoor and industrial environments. Precision Pre-Formed Leads Ensures perfect PCB alignment between the two indicator levels. Reduces assembly time and improves manufacturing repeatability. High-Contrast Black Housing Enhances visibility of ON/OFF status indications. Ensures uniform appearance across large deployment quantities. Long-Life, High-Reliability LED Chips Stable illumination and consistent brightness. Ideal for devices requiring continuous or long-term indication. Industrial-Grade Materials UL 94V-0 rated PA66 housing for flame-retardant safety. Halogen-free & RoHS compliant for environmental safety. Applications Industrial & Instrumentation Panels Multi-status machine indicators Fault, warning, and operation-mode displays Telecommunication Equipment Dual-level signal indicators Port activity and diagnostic status lighting Test & Measurement Devices Vertical multi-point status displays Power, range, and operational mode flags Control Systems & Keypad Backlighting Compact light modules for switches or keypads Status indicators for PLCs, relays, and control modules Consumer & Commercial Electronics Compact signal indicators for appliances and electronic devices Control Panel OEM 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 Red Green Blue Yellow White Amber Bi-Color Options Red + Green Red + Yellow Red + Blue Green + Yellow Green + Blue Yellow + Blue Dual-Independent or Mixed Level Combinations Each level can be a different color. Dual-same color (e.g., Red/Red, Green/Green) for redundant designs. 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. ___________________________________________________________________________________________________________________________________________________ Dimension and Circuit Drawing:

Product Series

Series No:bl-la2d3-b1004

Specification Download:

Dimension

7.9 × 9.15 × 11 mm

Description:

___________________________________________________________________________________________________________________________________________________

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

Two independent LED indicators arranged vertically.
Perfect for multi-step or multi-status condition reporting.
Saves PCB space while increasing visual functionality.

3mm LED Package

Standard 3mm round LED shape for universal compatibility.
Excellent luminous performance in both indoor and industrial environments.

Precision Pre-Formed Leads

Ensures perfect PCB alignment between the two indicator levels.
Reduces assembly time and improves manufacturing repeatability.

High-Contrast Black Housing

Enhances visibility of ON/OFF status indications.
Ensures uniform appearance across large deployment quantities.

Long-Life, High-Reliability LED Chips

Stable illumination and consistent brightness.
Ideal for devices requiring continuous or long-term indication.

Industrial-Grade Materials

UL 94V-0 rated PA66 housing for flame-retardant safety.
Halogen-free & RoHS compliant for environmental safety.

Applications

Industrial & Instrumentation Panels

Multi-status machine indicators
Fault, warning, and operation-mode displays

Telecommunication Equipment

Dual-level signal indicators
Port activity and diagnostic status lighting

Test & Measurement Devices

Vertical multi-point status displays
Power, range, and operational mode flags

Control Systems & Keypad Backlighting

Compact light modules for switches or keypads
Status indicators for PLCs, relays, and control modules

Consumer & Commercial Electronics

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

Red
Green
Blue
Yellow
White
Amber

Bi-Color Options

Red + Green
Red + Yellow
Red + Blue
Green + Yellow
Green + Blue
Yellow + Blue

Dual-Independent or Mixed Level Combinations

Each level can be a different color.
Dual-same color (e.g., Red/Red, Green/Green) for redundant designs.
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.

___________________________________________________________________________________________________________________________________________________

Dimension and Circuit Drawing:

Related Information

Soldering

When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.

Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.

Recommended soldering conditions:

IR Reflow Soldering (for SMD display)		Wave Soldering		Soldering Iron
Pre-Heat	150-180°C	Pre-Heat	100°C Max.	Temperature	300°C Max.
Pre-Heat Time	120sec Max.	Pre-Heat Time	60sec Max.
Peak Temperature	260°C Max.	SolderWave	260°C Max.	Soldering Time	3sec Max.(one time only)
Soldering Time	10 sec Max.	Soldering Time	5sec Max.

Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED

ESD(Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD (Electrostatic Discharge):

n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs

n All devices, equipment, and machinery must be properly grounded

n Work tables, storage racks, etc. should be properly grounded

n Use ion blower to neutralize the static charge which might have built up on surface of the LED’s

plastic lens as a result of friction between LEDs during storage and handling

ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current,

low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on”

and Vf of the suspect LEDs at low currents.

The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP

product.

When selecting power for LED systems, it’s essential to understand several key parameters to ensure safe operation, longevity, and optimal performance. Here are some steps and considerations for LED power selection:

Determine the Forward Voltage (Vf) of the LED(s):

Each LED has a forward voltage, which is the voltage at which the LED operates when the current is flowing through it. This value can typically be found in the LED’s datasheet.

Determine the Forward Current (If) of the LED(s):

The forward current is the current at which the LED is designed to operate. Running an LED at higher than its rated current can reduce its lifespan and increase the heat it produces.

Decide on the Configuration:

Series Configuration: When LEDs are connected in series, the forward voltages add up, but the current remains the same.

Parallel Configuration: When LEDs are connected in parallel, the forward voltage remains the same, but the currents add up. This configuration can be risky because if one LED fails or has a slightly lower forward voltage, it can cause the other LEDs to draw more current.

Calculate Total Power Requirements:

Power (W) = Total Forward Voltage (V) x Total Forward Current (A)

For example, if you have three LEDs connected in series, each with a forward voltage of 3V and a forward current of 20mA, the total power requirement would be:

Power = (3V + 3V + 3V) x 20mA = 9V x 0.02A = 0.18W

Select an Appropriate Power Supply:
Voltage Rating: The power supply voltage should match or slightly exceed the total forward voltage of your LED configuration.
Current Rating: The power supply’s current rating should meet or exceed the total forward current of your LED configuration.
Safety Margin: It’s a good practice to select a power supply that can provide at least 20% more power than your calculated requirement. This ensures the power supply isn’t operating at its maximum capacity, which can extend its life and ensure safer operation.

Consider Additional Features:

Dimming Capability: If you want to control the brightness of your LEDs, choose a power supply with dimming capabilities.
Overcurrent and Overvoltage Protection: To protect your LEDs, select a power supply with built-in protection mechanisms.
Thermal Management: Ensure that the power supply has adequate cooling, especially if it will be enclosed or in a location with limited airflow.
Regulation and Efficiency:A power supply with good regulation will maintain a consistent voltage output despite variations in the load. High efficiency ensures minimal power is wasted as heat.
Physical Size and Form Factor:Depending on where you plan to place the power supply, its size and shape may be critical factors.

In summary, when selecting power for LED systems, understanding your LED’s requirements and the configuration you plan to use is essential. Then, pick a power supply that meets those needs with some added safety margin, keeping in mind any additional features or constraints relevant to your project.

Here are some well-regarded brands in the industry:

Mean Well: One of the most recognized brands in the LED power supply industry, Mean Well offers a wide range of products suitable for both indoor and outdoor applications. Their units often come with features like overcurrent protection, dimming capabilities, and high efficiency.
Tridonic: A global leader in lighting technology, Tridonic offers LED drivers and power supplies that cater to various lighting solutions, from simple setups to advanced smart lighting systems.
Philips Advance Xitanium: Philips is a well-known brand in the lighting industry, and their Xitanium series of LED drivers are known for reliability and performance. They cater to both indoor and outdoor LED applications.
Osram: Another giant in the lighting industry, Osram offers a range of LED drivers and power supplies suitable for various applications, including architectural and street lighting.
LIFUD: Specializing in LED drivers, LIFUD is known for its high-quality products that cater to both commercial and residential LED lighting solutions.
MOSO: This brand offers a variety of LED drivers, especially for outdoor and industrial applications. Their products are known for durability and performance.
TDK-Lambda: With a history in power electronics, TDK-Lambda offers a range of power supplies and LED drivers suitable for various applications, emphasizing reliability and advanced features.

`Displays`

`Discrete LEDs`

`Application and Solution`

3mm CBI,circuit board indicator 3mm LED,dual level CBI

Product Series information

3mm Bi-Level LED CBI (8×4×10 mm) – Dual-Level Circuit Board Indicator