Through hole LED
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Description:
5mm LED Diode with 53mm Long Pin – Ultra-Extended Lead Indicator for Industrial & High-Depth Panel Applications
The 5mm LED diode with 53mm long pin is a specialized high-brightness indicator designed for applications requiring extra-long lead length, extended reach, and flexible mounting. With an impressive 53mm pin extension, this LED supports installations where traditional short-pin components simply cannot reach—such as thick front panels, deep enclosures, and mechanically isolated PCB layouts.
Engineers, electronics manufacturers, and equipment designers rely on this diode when they need reliable visual indication, easy wiring, and precision positioning in demanding environments. Whether used for industrial machinery, commercial control panels, consumer devices, or prototyping, this LED offers outstanding performance, durability, and mounting versatility.
⭐ Key Features
1. Classic 5mm LED Package
The widely adopted 5mm round LED format provides:
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High brightness and sharp color output
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Excellent compatibility with PCB footprints
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Uniform light distribution
Ideal for signaling, status indication, and equipment monitoring.
2. Ultra-Long 53mm Lead Pins
The standout feature of this LED is its 53mm extended pin length, offering unmatched installation freedom:
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Suitable for extra-thick panels, metal housings, and insulated enclosures
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Better flexibility for custom bending, lead forming, or offset mounting
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Ideal for manual soldering, breadboard connections, testing jigs, and prototypes
This length significantly enhances mechanical adaptability compared to standard 5mm LEDs.
3. Multiple Lens Types Available
Choose the best illumination style for your project:
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Water Clear – maximum directional brightness
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Color-Tinted Clear – enhanced wavelength visibility
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Diffused – uniform glow and reduced glare
Each lens type is optimized for consistent performance.
4. High Efficiency & Low Power Consumption
Designed with modern LED chip technology:
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Produces strong illumination with minimal current
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Compatible with ICs, microcontrollers, and battery-operated devices
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Stable and long-lasting even under continuous operation
5. Durable & Reliable Build Quality
The LED uses:
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Heat-resistant epoxy resin
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Corrosion-resistant extra-long leads
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Mechanically stable base structure
Ideal for environments with vibration, heat, or heavy usage.
6. Fully RoHS-Compliant
Meets global environmental and health standards for safe manufacturing and export.
⭐ Applications
Thanks to its 53mm long pins, this LED is suitable for specialized and high-depth installations that most standard LEDs cannot support.
✔ Industrial Control Panels
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Machine status indication
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Operation mode LEDs
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Alarm and warning lights
Extended pins allow the LED to reach through deep front panels.
✔ Consumer Electronics
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Audio systems
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Appliance interfaces
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Charging indicators
✔ Automotive Electronics
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Dashboard add-on indicators
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Custom lighting modules
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Prototyping applications
✔ Instrumentation & Measurement Equipment
The long leads help engineers precisely position the LED for optimum visibility and alignment.
✔ DIY, Prototyping & R&D Labs
Perfect for:
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Breadboards
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Test wire routing
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Solder-free experimenting
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Custom lead bending
✔ Custom Lighting Fixtures
Extended leads allow flexible placement away from the primary PCB.
⭐ Benefits & Advantages
The 5mm LED diode with 53mm long pin delivers several key performance and assembly benefits:
✔ Maximum Mounting Flexibility
The unusually long pins solve issues with:
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Multi-layer enclosures
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Recessed PCB locations
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Non-conventional mechanical spacing
✔ Improved Heat Dissipation
Extended lead length enhances thermal management.
✔ Easy Assembly & Soldering
Long pins give technicians more gripping area during installation.
✔ Versatile for Professional & Hobby Use
Whether for industrial production or small DIY setups, this LED fits smoothly into any workflow.
✔ Excellent Visual Output
Bright, clear indication, even at low current, ensures dependable performance in critical signaling applications.

⭐ Case Study: Electrical Control Cabinet Manufacturer
A European panel manufacturer struggled with standard LEDs because their thick steel panels blocked short leads from protruding fully. Switching to the 5mm LED with 53mm long pins allowed:
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Direct installation without lead extenders
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30% faster panel assembly time
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Reduced wiring complexity
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Stronger visibility consistency across all units
This modification improved workflow efficiency and reduced overall production cost.
⭐ User Testimonials
Automation Engineer – USA
“The 53mm leads are the perfect solution for thick industrial panels. No more extensions or adapters.”
Prototype Designer – UK
“Love these LEDs! Super easy to position and solder. Ideal for custom prototypes and testing boards.”
Electronics Manufacturer – Asia
“High brightness and impressive durability. Our assembly team prefers them over short-pin LEDs.”
⭐ Conclusion
The 5mm LED diode with 53mm long pin provides exceptional versatility, durability, and installation freedom for engineers and manufacturers. Its extended 53mm leads make it ideal for complex mechanical layouts, deep enclosures, and precision applications where visibility and reliability are crucial.
If you need a long-lead, high-performance LED for industrial-grade or specialized installations, this diode is the perfect choice.

Electrical-optical characteristics:
Package configuration & Internal circuit diagram
Obtain 3D specification files
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:
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.





