3535 SMD led diode

Series No:




3.5 x 3.5 x 2.8


SMD 3535





Empowering Innovations: The Impact of 3535 SMD LED Diodes in Modern Electronics

In the realm of electronic components, the 3535 SMD LED diode stands out as a powerhouse of efficiency and versatility. Known for its compact form yet powerful output, this “LED diode SMD” is a critical element in advancing modern lighting and display technologies. From general lighting to sophisticated electronic applications, the 3535 LED brings unparalleled value. This comprehensive article explores the essential features, broad applications, and tangible benefits of the 3535 SMD LED, accompanied by engaging case studies and testimonials from industry professionals.

Essential Features of the 3535 SMD LED Diode

The 3535 SMD LED diode, synonymous with high performance in a small package, offers exceptional brightness and energy efficiency. This diode’s design is optimized for direct mounting on surface boards, making it a preferred choice for compact devices requiring high light output. Capable of operating across a wide range of colors, including vibrant RGB schemes and practical infrared wavelengths, the 3535 SMD LED is versatile enough to meet the demands of various industries.

Diverse Applications of the 3535 SMD LEDs

The 3535 LED has carved its niche across multiple applications:

  • Consumer Electronics: Utilized in smartphones, tablets, and televisions for backlighting and status indicators.
  • Automotive: Enhances visibility and style in car headlights, interior lighting, and dashboard displays.
  • Medical Devices: Employed in advanced medical imaging and therapeutic devices where precise light control is necessary.
  • Industrial Lighting: Powers large-scale lighting installations where durability and longevity are critical.

Benefits of Integrating 3535 SMD LEDs

Choosing 3535 SMD LEDs offers substantial advantages:

  • Enhanced Energy Efficiency: These LEDs are designed to deliver maximum brightness with minimal power consumption, promoting energy conservation in all applications.
  • Longevity: Known for their durability, 3535 LEDs decrease the need for frequent replacements, thus reducing maintenance costs.
  • Versatility: With capabilities ranging from RGB color mixing to infrared lighting, these LEDs can be adapted for virtually any setting or requirement.

Case Studies: Real-World Impact of 3535 SMD LEDs

One notable case study involves a leading smartphone manufacturer that incorporated 3535 SMD LEDs into their latest model. The LEDs provided exceptional screen brightness and color depth, significantly enhancing the user experience while maintaining energy efficiency, which in turn improved the device’s battery life.

User Testimonials: Industry Feedback

Professionals in the electronics manufacturing sector have consistently praised the 3535 SMD LEDs for their reliability and performance. A design engineer from a top automotive company remarked, “The 3535 LEDs have transformed our vehicle lighting systems, providing superior illumination that enhances both safety and aesthetics.”

Exploring the Future of SMD RGB LED Technology

The ongoing development of SMD RGB LED technology, particularly within the 3535 form factor, suggests a bright future for electronic applications. These LEDs are increasingly used in smart home technology and IoT devices, where color and intensity control adds functional and aesthetic value.

Conclusion: Why the 3535 SMD LED Is Essential for Future Technologies

As technology progresses, the 3535 SMD LED diode remains at the forefront, driving innovations in efficient lighting and intelligent electronic design. For electronics manufacturers, engineers, and purchasers aiming to stay ahead of the curve, adopting 3535 SMD LEDs is not just an option—it’s a necessity. Consider leveraging the advanced capabilities of these LEDs to enhance your next project’s performance and design.

3535 SMD led diode
3535 SMD led diode


  • 3.5mm x 3.5mm SMD, 2.8mm Thickness, PLCC6 Package: This Surface-Mount Device (SMD) LED is relatively thick compared to standard SMD LEDs, housed in a PLCC6 (Plastic Leaded Chip Carrier) package, offering robustness and suitability for various applications.
  • 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 easy integration with automated manufacturing processes, enabling efficient and precise placement 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 500 Pieces per Reel: Supplied in reels of 500 pieces, facilitating bulk handling and automated assembly processes.
  • RoHS Compliance: Adheres to the Restriction of Hazardous Substances directive, indicating environmentally safer production.


  • Backlighting in Displays: Suitable for use in display screens where high brightness is required, such as in digital displays, advertising screens, and large monitors.
  • Indicator Lights in Electronics: Ideal for use as status or warning lights in consumer electronics, industrial machinery, and automotive applications.
  • Automotive Lighting: Appropriate for interior and exterior lighting solutions in vehicles, including dashboard lights, accent lighting, and external signal lights.
  • Portable Electronics: Given its brightness and compact size, it’s well-suited for use in portable devices like smartphones, tablets, and wearable technology.
  • Control Panels: Useful in control panels and instrumentation for machinery and industrial equipment, providing clear indication and backlighting.
  • Medical Devices: Can be employed in various medical instruments for backlighting and status indicators, where reliability and clarity are essential.
  • Decorative and Architectural Lighting: Suitable for decorative lighting in interior design, architectural projects, and ambient lighting setups.
  • Safety and Emergency Equipment: Applicable in safety gear and emergency lighting due to its high visibility and robust design.

RoHs Compliance, Pb-free              Anti-Static Attention

Electrical-optical characteristics:
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Package configuration & Internal circuit diagram
3535 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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