3535 SMD led diode,UVC LED

Series No:




3.5 x 3.5 x 3.15


SMD 3535






In the cutting-edge world of electronics, UV LEDs have become fundamental in driving innovation and efficiency across various applications. The 3535 SMD LED diode and UVC LED are at the forefront of this revolution, offering unique features that cater to a demanding industry. This article explores their features, applications, benefits, and real-world impact, enhanced by insights from case studies and user testimonials.

Comprehensive Features of 3535 SMD LED Diodes

The 3535 SMD (Surface-Mount Device) LED diode is celebrated for its efficiency and compact design, making it an ideal choice for high-performance electronics. Key features include:

  • High Brightness and Efficiency: These diodes provide exceptional luminosity and are energy-efficient, crucial for devices where space and power consumption are limited.
  • Robust Design: Designed to withstand rigorous conditions, these LEDs are reliable for both outdoor and indoor applications.
  • Versatile Application: From automotive lighting to mobile devices and IoT applications, these diodes are versatile enough to fit various technological needs.

Exploring UVC LEDs and Their Applications

UVC LEDs emit light in the ultraviolet spectrum, which is effective for sterilization and purification purposes:

  • Medical Equipment Sterilization: These LEDs are crucial in sterilizing medical instruments, providing a safe, chemical-free method to eliminate germs and viruses.
  • Water Purification: UVC LEDs are increasingly being used in water purification systems to ensure clean drinking water without the use of harmful chemicals.
  • Surface Disinfection: Especially relevant in today’s health-conscious environment, UVC LEDs are employed in disinfecting surfaces in public and private spaces.

The Advantages of UV LED Technology

The adoption of UV LEDs provides significant benefits:

  • Environmental Sustainability: UV LEDs, including UVC LED diodes, are more environmentally friendly as they do not contain mercury, unlike traditional UV lamps.
  • Energy Efficiency: These LEDs consume less energy than conventional UV sources, reducing overall operational costs.
  • Longevity and Durability: With a longer operational life and robust build, UV LEDs offer superior reliability and reduced maintenance costs.

Impactful Real-World Applications: Case Studies

Case Study 1: A leading consumer electronics manufacturer implemented 3535 SMD LED diodes in their latest range of smart TVs, significantly enhancing the color accuracy and the energy efficiency of the devices.

Case Study 2: A hospital in Europe utilized UVC LEDs in its HVAC systems and reported a 30% reduction in airborne infections over the year, showcasing the effectiveness of UVC LEDs in air purification.

Testimonials from Industry Experts

  • Electronics Design Engineer: “The integration of 3535 SMD LED diodes has revolutionized our product designs, allowing for sleeker, more energy-efficient consumer electronics.”
  • Operations Manager, Water Treatment Facility: “Since switching to UVC LEDs for our purification systems, we’ve seen a marked improvement in water quality and a significant reduction in our energy bills.”


The evolution of 3535 SMD LED diodes and UVC LEDs is a testament to the advancements in LED technology. Their broad range of applications, from enhancing electronic device functionality to ensuring public health safety through sterilization, positions these LEDs as crucial components in the electronics and healthcare industries.

Call to Action: Enhance your electronics projects with the latest in LED technology. Adopt 3535 SMD LED diodes and UVC LEDs today to benefit from superior performance and efficiency. Contact us to learn more about our innovative solutions!

3535 SMD led diode,UVC LED
3535 SMD led diode,UVC LED

Features of 3535 SMD UVC LED:

  • Compact PLCC6 package: 3.5mm x 3.5mm x 2.8mm.
  • Mono-color type with ultra brightness for efficient performance.
  • Compatible with automatic placement equipment for easy integration.
  • Wide viewing angle for versatile visibility.
  • Ideal for backlight and indicator applications.
  • Package: 500 pieces per reel.

Possible Applications:

  • UVC disinfection systems.
  • Sterilization equipment.
  • Germicidal lighting.
  • Water and air purification systems.
  • Medical and laboratory devices.
  • Industrial sanitation applications.
  • Food and beverage processing.
  • Customized UVC projects.

RoHs Compliance, Pb-free              Anti-Static Attention

Electrical-optical characteristics:
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Article No
UVC 265-285nm
Water Clear
Package configuration & Internal circuit diagram
3535 SMD led diode,UVC LED

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

Part No of  LED diode

More Information

Lens Color:

Meaningcolor DiffusedColor TintedWater ClearWater DiffusedOrange diffused 

Absolute maximum ratings (Ta=25°C)

Forward Current I F252525303030303030303030mA
Power Dissipation P d606060656575110110120120120120mW
Reverse Voltage V R555555555555V
Peak Forward Current I PF (Duty 1/10 @1KHZ)150150150150150150150100100100100100mA
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:
auto lampcameradome lightrgb screentraffic light


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.

led diode formingassembly notice of led diode


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 SolderingSoldering Iron
Pre-Heat150-180°CPre-Heat100°C Max.Temperature300°C Max.
Pre-Heat Time120sec Max.Pre-Heat Time60sec Max.
Peak Temperature260°C Max.SolderWave260°C Max.Soldering Time3sec Max.(one time only)
Soldering Time10 sec Max.Soldering Time5sec 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


antistatic notice-smd led

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.

drive notice - led diode

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.
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