Through hole LED
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Datasheet Inquiry
Description:
3mm LED Diode with 53mm Long Pins – Extended-Lead Indicator for Deep Panel & Custom Mounting
The 3mm LED diode with 53mm long pins is engineered for applications requiring exceptional installation reach, mechanical flexibility, and reliable illumination. Unlike standard 3mm LEDs with short terminals, this enhanced version features extra-long 53mm leads, making it ideal for deep enclosures, offset PCB mounting, panel-through assembly, and custom wiring layouts.
Manufacturers, electronics engineers, and equipment designers prefer this LED for its durability, easy handling, and consistent optical performance in both industrial and consumer devices. Whether used for front-panel status indication or specialty prototyping, this LED provides a powerful combination of compact size, long-lead convenience, and dependable brightness.
⭐ Key Features
1. Classic 3mm LED Package
The compact 3mm LED diode format ensures:
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Space-efficient installation
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High visibility in small indicator windows
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Compatibility with standard panel mounts and LED holders
Its rounded lens produces uniform, clean illumination.
2. Extra-Long 53mm Pins
The defining feature—53mm long pins—offers unmatched assembly versatility:
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Easily passes through extra-thick metal or plastic panels
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Works well in multi-layer PCB structures
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Allows precise manual bending for customized placement
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Ideal for reaching deep-mounted PCBs inside equipment housings
These long terminals eliminate the need for additional wire extensions or solder splicing.
3. Multiple Lens Options
Available lenses include:
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Water-clear (maximum brightness)
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Diffused (soft, wide-angle illumination)
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Colored clear (enhanced color recognition)
Engineers can match lens type to indicator function and viewing environment.
4. High Brightness With Low Power
Built using quality LED chips delivering:
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Strong luminance output
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Ultra-low current requirements
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Compatibility with digital ICs, microcontrollers, and low-voltage circuits
Perfect for battery-driven devices and efficient electronics.
5. Mechanically Robust Construction
The LED body is molded using:
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Epoxy resin for impact and heat resistance
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Corrosion-protected extended pins
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Reinforced internal bonding wires
Designed for stable performance in demanding usage environments.
6. Fully ROHS-Compliant
Safe for international export and suitable for eco-friendly product development.
⭐ Applications
The 3mm LED diode with 53mm long pins is designed for installations requiring extra reach, deep-panel mounting, and complex mechanical layout.
✔ Industrial Machinery & Control Panels
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Status indication
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Signal lights
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Safety and error indicators
Long pins easily extend through thick front panels or protective enclosures.
✔ Telecom & Networking Hardware
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Port status LEDs
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Switchgear indicators
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Multi-layer chassis designs
✔ Consumer Electronics
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Home appliance displays
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Audio equipment
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Power, mode, and activity indicators
✔ Automotive & Vehicle Electronics
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Dashboard add-ons
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Console-mounted indicators
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Custom lighting modules
✔ Prototyping & Engineering Labs
Ideal for:
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Breadboards
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Experimental layouts
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Adjustable LED alignment
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Teaching labs
The extended pins are easy to bend and reposition without damage.
⭐ Benefits & Advantages
✔ Extreme Mounting Flexibility
53mm is one of the longest pin lengths available for a 3mm LED, enabling:
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Deep and thick panel penetration
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Offset mounting far from the PCB
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Integration into mechanical housings with difficult geometry
✔ Better Heat Dissipation
Extended leads help disperse heat away from the LED junction for improved longevity.
✔ Easier Manual Assembly
Extra-long pins are:
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Easier to grip
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Easier to solder
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Less prone to breakage during shaping
Ideal for technicians and assembly line workers.
✔ Exceptional Reliability
The LED maintains stable brightness and long operational life even under:
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Vibration
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Temperature fluctuations
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Continuous duty cycles
✔ Perfect for Low-Current Circuits
Maintains visibility while consuming minimal power.
⭐ Case Study: Industrial Electronics Manufacturer
A U.S. manufacturer of large industrial controllers required LEDs to pass through 30–40mm steel and plastic panel assemblies. Standard LEDs did not reach the surface, causing assembly delays and wiring complications.
Switching to the 3mm LED diode with 53mm long pins delivered key improvements:
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Eliminated the need for custom wiring extensions
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Reduced assembly time by 35%
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Achieved perfect LED alignment through all housing layers
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Improved reliability due to fewer solder joints
The redesign significantly streamlined their production workflow and reduced long-term maintenance issues.
⭐ User Testimonials
Electronics Technician – USA
“The 53mm long leads are a game changer. They bend cleanly and stay in position without cracking.”
Panel Equipment Manufacturer – UK
“We needed LEDs that could reach through very thick surfaces. These were perfect — bright, strong, and easy to assemble.”
Prototype Developer – Canada
“Ideal for breadboards and custom designs. The long pins make experimentation fast and simple.”
⭐ Conclusion
The 3mm LED diode with 53mm long pins is the ideal solution for applications requiring extended reach, high reliability, and excellent optical performance. Its compact body, long leads, and robust construction make it perfect for industrial control systems, telecommunications, appliances, prototyping, and more.
If you need a small LED with extra-long pins for deep or complex mounting, this model delivers unmatched convenience and performance.
Electrical-optical characteristics:
Package configuration & Internal circuit diagram
Obtain 3D specification files
Initial Graphics Exchange Specification (.IGS)Standard for the Exchange of Product Model Data (.STEP)To examine all 3D specifications, save the files to your local drive and open them with your 3D application.
Lens colors in 3D files are solely for visual representation; consult the Datasheet for accurate lens type and color information.
In the event of a mismatch, the dimensions in the datasheet take precedence over the 3D specifications.
All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.
Partno description:
LEDs, Light Emitting diodes, which include various small kinds, such as 3mm, 5mm, 8mm, 10mm; round type, rectangular type square type, tower type, Oval led, elliptical, flat top; SMDs, high power led, piranha LEDs
More Information
Lens Color:
| Code | D | T | C | W | E | |
| Meaning | color Diffused | Color Tinted | Water Clear | Water Diffused | Orange diffused |
Absolute maximum ratings (Ta=25°C)
| Parameter | SR | LR | UR | UE | UY | UG | PG | BG | B | UB | UV | W | Unit |
| Forward Current I F | 25 | 25 | 25 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | mA |
| Power Dissipation P d | 60 | 60 | 60 | 65 | 65 | 75 | 110 | 110 | 120 | 120 | 120 | 120 | mW |
| Reverse Voltage V R | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | V |
| Peak Forward Current I PF (Duty 1/10 @1KHZ) | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 100 | 100 | 100 | 100 | 100 | mA |
| Operation Temperature T OPR | -40 to +80 | °C | |||||||||||
| Storage Temperature T STG | -40 to +85 | °C | |||||||||||
| Lead Soldering Temperature T SOL | Max.260+-5°C for 3 sec Max. (1.6mm from the base of the epoxy bulb) | °C | |||||||||||
Related Information
Applied for:
The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Consult Betlux’s Sales in advance for information on
applications in which exceptional reliability is required, particularly when the failure or malfunction of the LEDs
may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical
and life support systems and safety devices).
CAUTIONS for Through-Hole LED Lamps
1. Application
The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, communication equipment and household applications). Consult Betlux’s Sales in advance for information on applications in which exceptional reliability is required, particularly when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical and life support systems and safety devices).
2. Storage
The storage ambient for the LEDs should not exceed 30℃ temperature or 70% relative humidity. It is
recommended that LEDs out of their original packaging are used within three months
For extended storage out of their original packaging, it is recommended that the LEDs be stored in a sealed
container with appropriate desiccant or in a desiccator with nitrogen ambient.
3. Cleaning
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LED if necessary
4. Lead Forming & Assembly
During lead forming, the leads should be bent at a point at least 3mm from the base of LED lens. Do not use
the base of the leadframe as a fulcrum during forming.
Lead forming must be done before soldering, at normal temperature.
During assembly on PCB, use minimum clinch force possible to avoid excessive mechanical stress.
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.
Drive Method
An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs connected in
parallel in an application, it is recommended that a current limiting resistor be incorporated in the drive circuit,
in series with each LED as shown in Circuit A below.
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.
