Product Series information
Product Series |
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 Series No:bl-la3d3-a1504 Dimension 7.9 × 9.15 × 11 mm Description: ___________________________________________________________________________________________________________________________________________________ 3mm CBI, Triple-Level – Circuit Board Indicator 3mm LEDThe 3mm CBI, triple-level circuit board indicator LED is a specialized indicator solution designed for compact PCBs that require multi-status signaling in a vertical stack format. As part of the CBI (Circuit Board Indicator) LED family, this triple-level configuration provides three independent LED positions in one robust housing, making it an ideal choice for applications that demand space efficiency, clear visibility, and reliable multi-color or multi-status indication. Whether used in instrumentation, telecommunications, servers, or industrial control panels, the 3mm CBI triple-level LED indicator delivers consistent optical performance with simplified PCB integration. Key FeaturesTriple-Level LED DesignThis indicator incorporates three vertically aligned 3mm LEDs, allowing engineers to display three independent status conditions in a single footprint. This stacked configuration reduces board space usage and enables tidy, organized indicator layouts. Uniform 3mm LED IlluminationEach LED in the triple-level assembly uses a high-quality 3mm round LED, available in single colors, bi-color, or tri-color options depending on system requirements. The optical output is stable, bright, and easily visible in various environments. Precise PCB AlignmentThe housing is engineered to ensure perfect alignment when mounted onto printed circuit boards. This eliminates LED angle variations and promotes professional, consistent panel appearance. High-Contrast Indicator WindowsA molded black or dark housing enhances contrast, allowing the illuminated LEDs to stand out clearly in daylight or under strong ambient lighting. Multiple Lens OptionsDepending on application needs, devices may use:
Durable Housing for Industrial UseMade from heat-resistant, UL 94V-0 rated materials, this triple-level CBI unit withstands harsh manufacturing processes such as wave soldering. RoHS-CompliantFully compliant with environmental standards, ensuring safe and green electronic product design.  ApplicationsInstrumentation & Test EquipmentTriple-level indicators are often used for showing multi-stage states, such as:
Telecommunications EquipmentUsed on base stations, routers, switches, and network hardware to communicate:
Industrial Automation & Control PanelsThe vertical stacking capability makes it perfect for compact industrial equipment needing:
Consumer ElectronicsUseful for multi-function devices requiring multiple indicators in a restricted space. Servers and Power Supply UnitsOften used for:
BenefitsSpace-Saving Triple-Level FormatThree LEDs in one housing minimize PCB footprint while maximizing functionality. Improved Assembly EfficiencyPre-aligned LEDs reduce manual soldering errors and enhance production efficiency. High Reliability for Long-Term OperationEngineered for years of continuous operation with stable luminous output. Consistent Aesthetic and Professional LookPerfectly aligned indicators create a high-end, clean front-panel appearance. Case StudyA UK-based manufacturer of industrial control systems needed an indicator solution for a compact PLC module. Their requirements:
The 3mm CBI triple-level LED allowed them to replace multiple discrete LEDs with a single, organized assembly. It reduced assembly time by 25%, increased visibility, and improved the final appearance of the module. The company standardized this CBI solution across its entire product line. User Testimonials✔ John W., Electronics Engineer (USA) ✔ Maria T., Product Designer (UK) ✔ Alex R., Industrial Controls Manufacturer ConclusionThe 3mm CBI triple-level circuit board indicator LED offers engineers a compact, professional, and reliable multi-status display solution. With its vertically aligned triple-LED design, exceptional brightness, and robust construction, it is ideal for any industry requiring high-quality visual signaling in tight PCB spaces. This indicator simplifies assembly, enhances product aesthetics, and ensures long-term durability across a wide range of electronics applications. ___________________________________________________________________________________________________________________________________________________ Dimension and Circuit Drawing:  |
Related Article List
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.
