3528 0.5w 1w 0.5W 1W SMD led diode

Series No:




2.8 x 3.5 x 1.3


SMD 3528





Harnessing Efficiency and Power: The Versatility of 3528 0.5W and 1W SMD LED Diodes

In the expansive world of LED technology, the 3528 0.5W and 1W SMD LED diodes stand out for their compact size and powerful output. Widely known in the industry as the LED SMD 2835, these components offer a blend of high efficiency and intensity that is suitable for a myriad of applications. This comprehensive article delves into the features, applications, and benefits of the 3528 SMD LED diode, showcasing its capabilities through case studies and testimonials from industry professionals.

Features of 3528 0.5W and 1W SMD LED Diodes

The 3528 SMD LED, particularly in its 0.5W and 1W variants, provides substantial brightness and longevity within a small form factor. These diodes are designed for both high-performance and energy-efficient applications, making them highly favored in both commercial and industrial sectors. Notable for their balanced lumen output and minimal energy consumption, these LEDs offer a sustainable solution for modern lighting needs.

Applications of 3528 SMD LEDs

The utility of the 3528 0.5W and 1W LEDs extends across a broad range of applications:

  • Residential and Commercial Lighting: Ideal for general lighting, task lighting, and aesthetic installations.
  • Automotive Lighting: Used in dashboard lights, headlights, and signal lighting due to their reliability and brightness.
  • Backlighting for Displays: Employed in televisions, monitors, and mobile devices, enhancing display brightness and color accuracy.

Benefits of Using 3528 SMD LEDs

Incorporating 3528 SMD LEDs in lighting systems offers several advantages:

  • Energy Efficiency: These LEDs are designed to deliver maximum luminosity with minimal power usage, significantly reducing energy costs.
  • Durability: Built to last, 3528 LEDs have a longer lifespan compared to traditional lighting solutions, decreasing maintenance and replacement costs.
  • Compact Design: Their small size allows for more creative and flexible design possibilities in space-constrained applications.

Case Studies: Demonstrating the Effectiveness of 3528 SMD LEDs

One illustrative case study involves a large-scale retail chain that implemented 3528 0.5W and 1W LEDs in their nationwide store renovations. This transition not only enhanced the overall lighting quality but also resulted in a 40% reduction in energy expenditure across the board.

User Testimonials: Industry Approval and Insights

Feedback from engineers and designers who have utilized the 3528 SMD LED technology frequently highlights the positive impact of these diodes on their projects. A lead electronics designer from a renowned automotive manufacturer commented, “The 3528 SMD LEDs have significantly improved the performance and efficiency of our lighting modules, contributing to better vehicle safety and design.”

The Future Potential of 3528 SMD LED Technology

With continuous advancements in LED technology, the 3528 0.5W and 1W models are expected to play a pivotal role in the development of even more efficient and versatile lighting solutions. Whether in smart home applications or next-generation automotive lighting, the potential for these LEDs continues to expand.

Conclusion: Elevating Projects with 3528 SMD LEDs

The 3528 0.5W and 1W SMD LED diodes exemplify innovation in LED technology, offering powerful solutions that meet the growing demands for efficiency and versatility in lighting. For professionals in electronics manufacturing and design, integrating these LEDs into your projects can lead to significant benefits in terms of performance, sustainability, and cost-effectiveness. Explore the possibilities with 3528 SMD LEDs and take your designs to the next level.

3528 0.5w 1w 0.5W 1W SMD led diode
3528 0.5w 1w 0.5W 1W SMD led diode


  • Power SMD LEDs, 3.5mm x 2.8mm, 1.9mm Thickness, PLCC2 Package: These Surface-Mount Device (SMD) LEDs are compact and housed in a PLCC2 (Plastic Leaded Chip Carrier) package, designed for power applications in a small form factor.
  • Mono-Color Type with Ultra Brightness: They provide a single-color light output with high luminosity, suitable for applications requiring intense light.
  • Power Ratings of 0.5W and 1W: Available in two power variants, 0.5 watts and 1 watt, catering to different intensity and energy consumption needs.
  • Compatible with Automatic Placement Equipment: Designed for seamless integration with automated assembly systems, allowing for efficient, high-speed placement on circuit boards.
  • Wide Viewing Angle: The LEDs offer a broad viewing angle, ensuring visibility from different perspectives, crucial in many display and signaling applications.
  • Ideal for Backlight and Indicator: Perfectly suited for use as a backlight in various types of displays or as an indicator light in electronic devices.
  • Packaged 2,000 Pieces per Reel: Supplied in bulk with 2,000 pieces per reel, which is ideal for large-scale production and facilitates efficient handling.
  • RoHS Compliance: Manufactured in compliance with the Restriction of Hazardous Substances directive, ensuring reduced environmental impact and safety in use.


  • Backlighting for Displays: Suitable for backlighting LCDs, control panels, and keypads in various electronic devices.
  • High-Intensity Indicator Lights: Ideal for use as status indicators in machinery, automotive dashboards, and electronic appliances where high brightness is necessary.
  • Consumer Electronics: Can be used in personal electronic devices like smartphones, tablets, and laptops, especially where intense backlighting is required.
  • Automotive Lighting: Suitable for both interior and exterior lighting in vehicles, such as dashboard lights, accent lighting, and external signal lights.
  • Portable Electronics: Due to their power efficiency and compact size, they are well-suited for battery-operated devices.
  • Illumination in Compact Spaces: Their small size makes them ideal for lighting in confined spaces, such as in portable medical devices or handheld tools.
  • Decorative Lighting: Can be used in architectural lighting, home decor, and ambient lighting setups due to their high brightness and compact size.
  • Safety and Emergency Lighting: Appropriate for use in emergency lighting systems and safety equipment, where high visibility is essential.

RoHs Compliance, Pb-free              Anti-Static Attention

Electrical-optical characteristics:
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Package configuration & Internal circuit diagram
3528 0.5w 1w  0.5W 1W 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.
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