Product Series information
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 Series No:bl-lh3d6 Dimension Description: ___________________________________________________________________________________________________________________________________________________ 3mm LED Housing (5.3mm × 5.3mm): Compact, Durable, and Perfect for PCB IndicatorsWhen it comes to designing compact electronic devices, choosing the right LED housing is just as important as selecting the LED itself. The 3mm LED housing with a 5.3mm diameter and 5.3mm height is engineered for reliability, perfect alignment, and long-term durability. Made from high-quality 66 nylon, this housing ensures stability, protection, and excellent performance for a wide variety of applications, including LED indications, back panel illumination, and PCB-mounted signaling. Whether you are an electronics engineer, industrial designer, or purchasing specialist, this 3mm LED holder provides the mechanical security, environmental protection, and aesthetic uniformity needed in modern electronics. Key Features of the 3mm LED Housing (5.3×5.3mm)✔ 1. Premium 66 Nylon ConstructionThe housing is molded from UL-rated 66 nylon, a material widely known for:
Its durability makes it ideal for environments where vibration, temperature changes, and long operating hours are expected. ✔ 2. Compact & Efficient DesignWith a 5.3mm diameter and 5.3mm height, this housing is optimized for:
Its size allows for a professional finish while keeping the LED secured in place. ✔ 3. Suitable for PCB Indicators & Panel IlluminationThis 3mm LED housing supports a wide range of applications:
The housing ensures proper LED centering and enhances the optical output consistency. ✔ 4. Easy Installation with a 4.3mm Recommended Hole SizeDesigned for effortless assembly, the recommended 4.3mm mounting hole ensures:
This is perfect for both manual assembly and automated production lines. ✔ 5. RoHS ComplianceThe housing is fully RoHS compliant, meaning:
This compliance ensures global compatibility and environmental responsibility.  Applications of 3mm LED Housing (5.3×5.3mm)✔ Industrial Control PanelsProvides clean, uniform LED indication for machine status, alarms, and navigation keys. ✔ Consumer ElectronicsUsed in small appliances, chargers, toys, and control modules. ✔ Telecommunications EquipmentIdeal for compact signal LEDs in routers, switches, modems, and access points. ✔ Instrumentation & Measurement DevicesAllows precise LED alignment for interfaces in meters, gauges, and analyzers. ✔ Automotive AccessoriesApplied in aftermarket devices, dashboard add-ons, and compact signaling modules. Benefits of Choosing This LED Housing✔ Improved LED ProtectionShields the LED from dust, impact, and environmental exposure. ✔ Better Light Focus & AestheticsProvides consistent LED positioning and clean front-panel appearance. ✔ Enhances Durability in Harsh EnvironmentsNylon 66 structure increases lifespan in high-vibration or high-temperature conditions. ✔ Simplifies ManufacturingSnap-in design reduces assembly labor and increases repeatability. Case Study: Industrial Sensor ManufacturerA U.S.-based sensor company integrated this 3mm 5.3×5.3mm LED housing into their compact signal modules. Results included:
This improved both production efficiency and end-user satisfaction. User Testimonials⭐ Electronics Engineer – UK"The 3mm housing fits perfectly on our compact PCBs. The 4.3mm hole recommendation made our design straightforward and consistent." ⭐ Purchasing Manager – USA"We needed durable, RoHS-compliant parts for mass production. These housings offered great quality and cost efficiency." ⭐ Product Designer – Germany"The nylon material gives a premium feel and ensures long-term stability. Highly recommended for indicator applications." ConclusionThe 3mm LED housing (5.3mm × 5.3mm) is a reliable, high-quality choice for engineers and manufacturers needing secure LED mounting, consistent illumination performance, and RoHS-compliant materials. Its compact design, durable construction, and easy installation make it suitable for a wide range of applications across industries. If you need a dependable small-form LED mounting solution, this housing delivers outstanding performance and long-term value. ___________________________________________________________________________________________________________________________________________________ Dimension and Circuit Drawing:  |
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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.
