Product Series information
Product Series |
|---|
 Series No:bl-l314h16 Dimension 3 × 3.9 × 5.3 mm Description: ___________________________________________________________________________________________________________________________________________________ 3mm LED Diode with 16mm Long Lens Head – Ultra-Extended Indicator for Deep Panel MountingThe 3mm LED diode with 16mm long lens head is a specialized through-hole indicator designed for applications requiring exceptional reach, superior visibility, and extended protrusion through thick or multi-layer panels. While the LED retains the traditional 3mm (T-1) footprint, its extra-long 16mm lens delivers dramatically improved viewing clarity, directional focus, and surface presentation. Engineers, electronics manufacturers, and product designers often choose this LED for high-end control panels, telecom hardware, appliances, and devices where the illumination point must remain clearly visible above protective housings or deep-set enclosures. Its combination of compact size + extra-long lens height makes it a rare but highly valuable component for advanced indicator designs. ⭐ Key Features1. Extra-Long 16mm Lens HeadThe standout feature of this LED is its unusually tall 16mm lens dome. This extended profile provides:
This is especially beneficial when standard 3mm or 10mm lenses sit too deep in the housing. 2. Standard 3mm LED BodyDespite the long lens height, the LED maintains the classic 3mm cylindrical form, offering:
This makes upgrading to a taller lens simple and cost-effective. 3. High-Brightness Light OutputThe diode delivers:
Ideal for battery-operated devices, low-current circuits, and IC-driven systems. 4. Multiple Lens Styles AvailableTo meet diverse design needs, the LED may be offered in:
These options allow perfect matching to various indicator environments. 5. Durable Through-Hole ConstructionWith its strong epoxy lens and reinforced leads, the LED ensures:
Suitable for both industrial and consumer-grade applications. 6. RoHS CompliantManufactured with safe, lead-free materials to meet global environmental standards. ⭐ ApplicationsThe 3mm LED diode with a 16mm long lens head is designed for conditions where a tall indicator is required for visibility, aesthetics, or mechanical alignment. ✔ Industrial Control PanelsThe long lens protrudes clearly through thick, multi-layer panel assemblies. ✔ Test & Measurement InstrumentsEnsures readable visual signals even when installed behind recessed bezels. ✔ Telecommunications EquipmentImproves visibility across multi-unit network racks. ✔ Consumer ElectronicsCommon in:
✔ Automotive Add-Ons & Dashboard ModificationsExtended height helps align indicators with custom instrument panel openings. ✔ Prototyping & Engineering LabsUseful for quick visual inspection and accessible optical indicators during development. ⭐ Benefits & Advantages✔ Superior VisibilityThe 16mm lens provides a much more prominent display point compared to standard LEDs. ✔ Ideal for Thick Enclosure DesignsPerfect for panels made of:
✔ Reduced Need for Additional SpacersA single tall-lens LED replaces the need for:
Great for simplifying mechanical design. ✔ Focused Optical BeamProduces a cleaner, narrower beam for enhanced readability from a distance. ✔ Easy to IntegrateSame PCB footprint as a standard 3mm LED—no redesign required. ✔ Long Operational LifeBuilt with high-quality chips and epoxy housing for durability in demanding environments.  ⭐ Case Study: Telecom Front Panel RedesignA European telecom company struggled to achieve proper visibility using standard 3mm LEDs behind a 12mm-thick panel bezel. The LEDs sat too deep, and light reflections reduced clarity. After switching to the 3mm LED with a 16mm long lens, they achieved:
This became their new standard LED for all indicator modules. ⭐ User TestimonialsElectronics Engineer – USA Product Developer – UK DIY Maker – Japan ⭐ ConclusionThe 3mm LED diode with a 16mm long lens head is the ideal component for products requiring prominent visual indicators, extended panel penetration, and reliable optical performance. Its combination of high brightness, extended lens height, and classic 3mm footprint makes it suitable for a wide range of industrial, commercial, and consumer applications. If you're designing devices that need a clear, elevated LED signal, this long-lens 3mm LED offers unmatched convenience and performance. ___________________________________________________________________________________________________________________________________________________ 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.
