3528 SMD led diode

Series No:




3.5 x 2.8 x 1.9


SMD 3528





Revolutionizing Greenhouse Technology with 3528 SMD LED Diodes for Horticultural Lighting

In the domain of modern agriculture, the 3528 SMD LED diode emerges as a pivotal component in driving innovations in horticultural lighting. Known for its compact design and efficient light output, this particular type of LED has become instrumental in enhancing plant growth environments. This article delves into the detailed features, applications, and benefits of the 3528 SMD LED diode, including insightful case studies and testimonials that underline its effectiveness and versatility in the field of horticulture.

Unveiling the Features of the 3528 SMD LED Diode

The 3528 SMD LED, a key player in the LED market, offers optimal performance in a compact package. Its size, combined with its ability to produce a spectrum of light wavelengths, including those in the UV-A, UV-B, and UV-C ranges, makes it particularly suited for applications that demand high precision and adaptability. For horticultural purposes, these LEDs can be tuned to specific wavelengths that are ideal for various stages of plant growth, from germination to flowering.

Applications of 3528 SMD LEDs in Horticultural Lighting

The utility of the 3528 LED extends across various sectors of horticulture:

  • Greenhouse Lighting: Enhances light available to plants, extending growing seasons and improving plant health.
  • Vertical Farming: Serves as the primary light source in controlled environment agriculture where natural light is limited.
  • Research Applications: Used in experimental setups to study plant responses to different light spectra.

Advantages of Employing 3528 SMD LEDs in Horticulture

Choosing 3528 SMD LEDs for horticultural applications brings several compelling benefits:

  • Energy Efficiency: These LEDs consume significantly less power than traditional horticultural lighting systems, reducing operational costs.
  • Longevity: The 3528 SMD LEDs are durable, offering longer operational life spans which decrease the need for frequent replacements.
  • Targeted Wavelengths: The ability to produce specific light wavelengths enhances plant growth rates and yields.

Case Studies: Demonstrating the Impact of 3528 SMD LEDs in Agriculture

One notable case study involves a commercial greenhouse that replaced its old lighting system with 3528 SMD LEDs. This switch resulted in a 20% increase in yield and a 30% reduction in energy consumption, showcasing the direct benefits of integrating these LEDs into agricultural practices.

User Testimonials: Positive Feedback from Industry Experts

Feedback from agricultural professionals who have adopted 3528 SMD LED technology frequently highlights the transformative impact of these lights. A greenhouse manager shared, “Switching to 3528 SMD LEDs not only cut down our energy bills but also improved the overall health and growth rate of our crops.”

Exploring the Role of SMD LED 3528 in Advanced Horticultural Systems

Beyond basic applications, the 3528 SMD LEDs are increasingly used in advanced horticultural systems that incorporate automated light adjustments based on plant growth stages and external conditions. This smart application of technology ensures optimal light conditions, maximizing efficiency and effectiveness.

Conclusion: Embracing 3528 SMD LEDs for Future Agricultural Success

The 3528 SMD LED diode represents a significant advancement in agricultural technology, offering a blend of efficiency, control, and sustainability. For those in the field of electronics manufacturing, engineering, or administration within the agricultural sector, adopting 3528 SMD LEDs can lead to profound improvements in productivity and sustainability. Consider the potential of 3528 SMD LEDs to revolutionize your agricultural practices and contribute to a greener future.

3528 SMD led diode
3528 SMD led diode


  • 3.5mm x 2.8mm SMD, 1.9mm Thickness, PLCC4 Package: This Surface-Mount Device (SMD) LED is compact in size and housed in a PLCC4 (Plastic Leaded Chip Carrier) package, offering a good balance between size and functionality.
  • Mono-Color Type with Ultra Brightness: Provides a single-color light output with high luminosity, ensuring clear visibility and strong illumination.
  • Compatible with Automatic Placement Equipment: Designed for seamless integration with automated assembly systems, enabling efficient, high-speed placement and soldering on circuit boards.
  • Wide Viewing Angle: Offers a broad range of visibility, making the LED effective for applications where it needs to be seen from different angles.
  • Ideal for Backlight and Indicator: Perfectly suited for use as a backlight in display panels or as an indicator light in various electronic devices.
  • Packaged 2,000 Pieces per Reel: The LEDs are supplied in reels of 2,000 pieces, optimizing manufacturing efficiency and ease of bulk handling.
  • RoHS Compliance: Manufactured in accordance with the Restriction of Hazardous Substances directive, ensuring environmentally safer production and use.


  • Backlighting in Electronics: Ideal for backlighting displays in smartphones, tablets, laptops, and other personal electronic devices.
  • Indicator Lights in Appliances: Suitable for use as status or signal indicators in household and commercial appliances.
  • Automotive Interior Lighting: Can be used for dashboard backlighting, control buttons, and indicator lights in vehicles.
  • Portable Electronics: Given its small size, it’s well-suited for compact devices like wearables and handheld gadgets.
  • Control Panels and Instrumentation: Useful in industrial and laboratory equipment for backlighting and status indication.
  • Medical Devices: Appropriate for backlighting and indicators in various medical instruments where reliability and clear visibility are essential.
  • Safety and Emergency Equipment: Can be employed in safety gear and emergency lighting systems due to its high visibility and compact size.
  • Decorative and Ambient Lighting: Suitable for creating mood lighting in interior design and architectural projects.

RoHs Compliance, Pb-free              Anti-Static Attention

Electrical-optical characteristics:
Filters Sort results
Reset Apply
Article No
Ultra Pure Green
Water Clear
Ultra Blue
Water Clear
Ultra Orange
Water Clear
Ultra Green
Water Clear
Ultra White
Water Clear
Ultra Yellow
Water Clear
Ultra Amber
Water Clear
Package configuration & Internal circuit diagram
3528 SMD led diode

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.
Need help?
Scroll to Top