4545 SMD led diode,UVC LED

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4.5 x 4.5 x 3.25


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4.5 × 4.5 × 3.25 mm

Unveiling the Power of 4545 SMD LED Diode: Revolutionizing UVC LED Technology

In the world of lighting technology, the 4545 SMD LED diode, especially the UVC LED variant, represents a significant leap forward. As a highly efficient UV LED, this device plays a crucial role across various sectors, including medical sterilization, water purification, and even agriculture. This article delves deep into the features, applications, and benefits of this powerful LED, supplemented by real-world case studies and testimonials from industry professionals.

Exploring the Features of 4545 SMD LED Diode, UVC LED

The 4545 SMD LED diode is known for its robust design and powerful output, particularly in the ultraviolet spectrum. As a UV LED, it emits ultraviolet light, which is pivotal for processes requiring sterilization and high-energy light without the use of harmful chemicals. Key Features:
  • High Output: Provides intense UV light that is efficient in energy use.
  • Compact Size: Its small footprint allows for integration into various devices without compromising performance.
  • Longevity: Designed to last longer than traditional UV light sources, reducing maintenance costs.

Versatile Applications of UVC LEDs

The 4545 SMD LED diode finds its applications in a multitude of fields:
  • Medical Devices: Used in sterilizing equipment to ensure they are free of microbes and viruses.
  • Water Treatment: Plays a critical role in purifying drinking water by killing harmful bacteria and viruses without chemicals.
  • Agricultural Growth: Known as "agriculture light," UVC LEDs promote plant growth and control pests without the use of pesticides.

Advantages of Implementing 4545 SMD UVC LEDs

Switching to 4545 SMD LED diodes for UVC applications offers several benefits:
  • Enhanced Safety: Provides a chemical-free method of sterilization, which is safer for both users and the environment.
  • Cost Efficiency: Reduces energy consumption and lowers operating costs due to its high efficiency and durability.
  • Environmental Impact: Offers a green alternative to chemical sterilization, helping reduce the ecological footprint.

Evidence of Success: Case Studies

The effectiveness of the 4545 SMD LED diode, UVC LED is demonstrated in various case studies:
  1. Hospital Sterilization Systems: A series of hospitals adopted these UVC LEDs for sterilizing surgical tools, significantly reducing infection rates and operational costs.
  2. Agricultural Development Projects: Several farms used these LEDs to enhance plant growth and yield without the adverse effects of chemical treatments.

Feedback from the Industry: User Testimonials

Testimonials from users and industry experts highlight the practical impacts of the 4545 SMD LED diode:
  • Medical Equipment Manufacturer: "The integration of UVC LEDs into our sterilization devices has not only improved efficiency but also enhanced the reliability of our products."
  • Agricultural Technology Specialist: "Using UV LED in our greenhouses has led to healthier plants and reduced our reliance on harmful pesticides."

Conclusion: Leading the Way with 4545 SMD LED Diode, UVC LED

The 4545 SMD LED diode, particularly the UVC LED, is transforming industries by providing efficient, sustainable, and safe lighting solutions. Whether for medical sterilization, water treatment, or boosting agricultural production, this technology offers substantial advantages. Call to Action: Are you ready to harness the benefits of UVC LED technology in your projects? Contact us today to learn more about how the 4545 SMD LED diode can elevate your applications and contribute to a healthier environment.
4545 SMD led diode,UVC LED
4545 SMD led diode,UVC LED
Features of 4545 SMD UVC LED:
  • Compact PLCC6 package: 4.5mm x 4.5mm 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.
Dimension and Circuit Drawing:
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UVC 265-285nm
Water Clear
Related Information


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

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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