3535 SMD led diode, IR LED

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3.5 x 3.5 x 2.3


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Series No:BL-LS3535H0C1IR
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3.5 × 3.5 × 2.3 mm


In the fast-evolving electronics field, the importance of specialized components like IR diodes, specifically 3535 SMD LED diodes and IR LEDs, cannot be overstated. These components, known for their efficiency and versatility, are integral in a wide range of applications, from security systems to remote controls. This article provides an in-depth look at their features, applications, benefits, along with insights from real-world case studies and testimonials from industry professionals.

Innovative Features of 3535 SMD LED Diodes and IR LEDs

The 3535 SMD LED diode is a compact, high-performance light-emitting diode that is increasingly used in conjunction with IR LEDs (infrared LEDs). Here’s why they are preferred:
  • Compact Size and High Power: These diodes are small but pack a punch in terms of luminosity and efficiency, ideal for space-sensitive applications.
  • High Efficiency: They convert electricity into light with minimal energy loss, which is crucial for energy-sensitive applications.
  • Durability: Built to last, these LEDs can operate under challenging environmental conditions without a decline in performance.

Critical Applications of IR Diodes

IR diodes, especially those operating around IR 850nm, are critical in applications that require non-visible light:
  • Surveillance Systems: Used in CCTV cameras to provide clear images under low-light conditions.
  • Remote Control Systems: Common in consumer electronics, enabling remote operation of devices.
  • Healthcare Devices: Employed in various medical devices for non-invasive monitoring and diagnostic purposes.

Advantages of Using Infrared LED SMD Technology

The shift towards using infrared LEDs SMD comes with numerous advantages that benefit a multitude of industries:
  • Non-Invasive Technology: IR LEDs can operate without direct contact, making them ideal for applications in healthcare and motion detection.
  • Energy Savings: These LEDs are known for their low power consumption, which is particularly beneficial for battery-operated devices.
  • Longevity: The lifespan of IR LEDs exceeds that of many alternative light sources, reducing the need for frequent replacements.

Real-World Impact: Case Studies

The practical applications of 3535 SMD LED diodes and IR LEDs have shown significant benefits in various sectors: Case Study 1: A leading security solutions provider integrated IR 850nm LEDs into their new range of outdoor cameras, which resulted in a 50% improvement in night vision capability compared to previous models. Case Study 2: An automotive company adopted these LEDs for interior lighting and sensor applications in their next-gen vehicles, enhancing user experience and safety features.

Professional Insights: User Testimonials

Feedback from the field provides further validation of the versatility and effectiveness of these technologies:
  • Project Manager, Tech Manufacturing: "Integrating 3535 SMD LED diodes into our products has significantly improved their performance while cutting down on energy consumption."
  • Systems Engineer: "The use of IR LEDs in our new line of medical diagnostic tools has allowed for quicker and more accurate results, which is a game-changer in the industry."


3535 SMD LED diodes and IR LEDs are reshaping the landscape of modern electronics, providing efficient, durable, and versatile solutions that meet the demands of an array of applications. As technology continues to advance, the role of these specialized LEDs is set to grow, further enhancing their impact across different industries. Call to Action: Embrace the future of electronics with our cutting-edge 3535 SMD LED diodes and IR LEDs. Upgrade your systems today to achieve better performance and efficiency. Contact us to learn more about our innovative products!
3535 SMD led diode, IR LED
3535 SMD led diode, IR LED
Features of 3.5mm x 3.5mm SMD Infrared Diode (PLCC6 Package):
  • Compact PLCC6 package: 3.5mm x 3.5mm x 2.8mm.
  • Compatible with automatic placement equipment.
  • Wide viewing angle for versatile visibility.
  • Applications include remote control, IR wireless data transmission, and security alarms.
  • Enhanced thermal management for extended durability.
  • Stable performance across a wide temperature range.
  • Reliable and consistent infrared emission.
  • High-speed data transmission capabilities.
  • Uniform illumination for clear signal reception.
  • Precise wavelength for specific application requirements.
  • RoHS compliance for environmentally conscious designs.
  • Compact design for space-efficient installations.
  • Package: 500 pieces per reel.
Possible Applications:
  • Infrared remote control systems.
  • IR wireless data transmission.
  • Security alarm systems.
  • Proximity sensors.
  • Ambient light sensing.
  • Smart home applications.
  • Gesture recognition systems.
  • Object detection.
  • Optical encoders.
  • Communication devices.
  • Industrial automation.
  • Medical equipment.
  • Consumer electronics.
  • Wearable technology.
  • Smart appliances.
  • Automotive applications.
  • Robotics.
  • Customized infrared projects.
Dimension and Circuit Drawing:
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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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