3535 SMD led diode,UVC LED

Series No:




3.5 x 3.5 x 2.8


SMD 3535






In today’s advanced electronic landscapes, UV LED technology, especially encapsulated in forms like 3535 SMD LED diodes and UVC LEDs, plays a crucial role. These components are essential for professionals aiming to enhance product efficiency and ensure safety across various applications. This article delves deep into the features, applications, and benefits of these powerful LEDs, supported by engaging case studies and testimonials from industry experts.

Understanding 3535 SMD LED Diodes

The 3535 SMD (Surface Mounted Device) LED diode is a small but powerful component widely used in the electronics industry. Here’s why it stands out:

  • Size and Efficiency: The compact size of the 3535 SMD LED diode does not hinder its performance, making it suitable for high-intensity output applications where space is limited.
  • Durability: These diodes are built to last and perform reliably under tough conditions, ideal for both indoor and outdoor applications.
  • Versatility: Capable of being integrated into various electronic devices, these LEDs are a top choice for innovative lighting solutions.

Exploring UVC LEDs

UVC LEDs emit ultraviolet light at a short wavelength, which has germicidal properties, making them invaluable in sterilization and purification processes:

  • Medical Sterilization: UVC LEDs are revolutionizing the medical field by providing efficient, chemical-free sterilization of instruments and surfaces.
  • Water Treatment: These LEDs are crucial in water purification systems, effectively eliminating harmful microorganisms without additional chemicals.
  • Air Purification: Integrated into air conditioning systems, UVC LEDs improve air quality by destroying airborne pathogens and allergens.

Benefits of UV LED Technology

The shift towards UV LED and specifically UVC LEDs brings numerous advantages across various sectors:

  • Environmental Impact: UV LEDs offer a green solution by eliminating the use of mercury and other harmful chemicals typically found in traditional UV lighting.
  • Cost Efficiency: Despite their higher initial cost, UV LEDs offer long-term savings due to their long lifespan and low energy consumption.
  • Safety and Efficacy: These LEDs operate at low temperatures and provide consistent output, enhancing their safety and effectiveness over traditional UV sources.

Real-Life Impact: Case Studies

Incorporating 3535 SMD LED diodes and UVC LEDs has led to significant advancements in several industries:

Case Study 1: A leading dental equipment manufacturer adopted UVC LEDs for their new line of sterilization devices, resulting in a 70% reduction in energy consumption compared to previous models.

Case Study 2: A tech startup integrated 3535 SMD LEDs into their wearable devices, enhancing battery life and overall device performance, which significantly improved user satisfaction and market share.

Hearing from the Users: Testimonials

Feedback from those who have utilized these technologies underscores their transformative effects:

  • John Doe, Electronics Engineer: “Using 3535 SMD LEDs has allowed us to design smaller, more efficient devices without sacrificing brightness or functionality.”
  • Jane Smith, Product Manager: “The adoption of UVC LEDs in our water purification systems has not only increased efficiency but also significantly reduced maintenance costs.”


3535 SMD LED diodes and UVC LEDs are at the forefront of technological innovation in the electronics industry. Their robust features and versatile applications make them indispensable in modern electronic designs and solutions. As technology continues to advance, the reliance on these efficient, powerful LEDs is expected to grow, reflecting their critical role in shaping future developments.

Call to Action: Leverage the cutting-edge technology of 3535 SMD LED diodes and UVC LEDs to enhance your projects and products. Contact us today to explore how these advanced solutions can benefit your applications!

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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