0603 SMD LED

Series No:




1.6 x 0.8 x 0.6


SMD 0603 chipLED






The 0603 SMD LED represents a significant innovation in the field of electronic components, providing high efficiency and versatility in an extremely compact format. Often referred to as 0603 LED, this surface-mount device is essential in numerous applications across various industries, from consumer electronics to automotive systems. This article explores the features, applications, and benefits of the 0603 LED, alongside insightful case studies and testimonials from industry professionals.

Features of 0603 SMD LED

The 0603 SMD LED is known for its small size, measuring approximately 1.6mm by 0.8mm. It is designed for easy integration into electronic circuits with minimal space requirements. These LEDs are available in various colors, typically categorized under mono color, which refers to single-color LEDs rather than RGB variants. They are characterized by their chip LED design, making them a staple in surface mounted LED technology.

Applications of 0603 SMD LED

0603 LEDs are extensively used in:

  • Mobile Devices: For backlighting screens, buttons, and indicators.
  • Automotive: In dashboard lighting, indicator lights, and exterior lights.
  • Healthcare: In portable medical instruments where compact, reliable lighting is crucial.
  • Wearable Technology: Integrated into compact devices for status indicators and functionality enhancements.

Benefits of Using 0603 SMD LEDs

The integration of 0603 SMD LEDs offers multiple advantages:

  • Compact Size: Allows for denser packing of LEDs, which is ideal for modern electronic devices that require miniaturization.
  • Energy Efficiency: Consumes less power compared to traditional lighting solutions, contributing to the overall energy efficiency of the device.
  • Reliability and Longevity: Offers a longer operational life, which reduces the need for frequent replacements and lowers maintenance costs.

Case Studies: 0603 SMD LEDs in Real-World Applications

A key case study involves a leading smartphone manufacturer that used 0603 LEDs to create thinner and more energy-efficient mobile devices. Another example is from the automotive industry, where these LEDs were used to improve the energy efficiency and durability of lighting in vehicle cockpits.

User Testimonials

Feedback from electronics engineers underscores the value of 0603 SMD LEDs. An engineer from a consumer electronics firm stated, “The 0603 LED has been integral to reducing our product sizes while enhancing the brightness and color accuracy of our displays.” A procurement specialist in the automotive sector noted, “These LEDs have significantly cut down our costs due to their long lifespan and reliability.”

Conclusion: Embracing the Efficiency of 0603 SMD LEDs

As the demand for more compact and energy-efficient electronic components grows, the 0603 SMD LED continues to be a critical element in the design and manufacture of various electronic devices. Its ability to meet diverse industry needs while maintaining high performance and reliability makes it an indispensable component in the electronics field.

Call to Action Looking to enhance your electronic designs with reliable and efficient lighting solutions? Consider the 0603 SMD LED for your next project. Contact us today for more information and discover how our products can improve your applications!

0603 SMD LED
0603 SMD LED


  • 1.6mm x 0.8mm SMD, 0.8mm Thickness: This Surface-Mount Device (SMD) LED is extremely compact and slim, making it suitable for high-density mounting on circuit boards and ideal for miniaturized electronic applications.
  • Mono-Color Type with Ultra Brightness: Offers a single-color light output with high luminosity, ensuring clear visibility and strong illumination suitable for a variety of uses.
  • Compatible with Automatic Placement Equipment: Designed to be easily integrated into automated assembly lines, enabling efficient, high-speed placement and soldering on circuit boards.
  • Wide Viewing Angle: Provides a broad range of visibility, ensuring the LED is effective for applications where it needs to be visible from multiple angles.
  • Ideal for Backlight and Indicator: Well-suited for use as a backlight in small display panels and as a mono-color indicator in various electronic devices.
  • Packaged 4,000 Pieces per Reel: Supplied in bulk with 4,000 pieces per reel, facilitating large-scale production and efficient handling.
  • Pb-Free and RoHS Compliance: Manufactured without lead and in accordance with the Restriction of Hazardous Substances directive, ensuring environmental safety and reduced health risks.


  • Backlighting for Small Displays: Suitable for backlighting in compact LCDs, control panels, and keypads within various electronic devices, providing bright and consistent illumination.
  • Indicator Lights in Electronics: Ideal for status or warning lights in consumer electronics, automotive dashboards, and industrial machinery where compact size and high visibility are important.
  • Portable Electronics: Well-suited for use in handheld devices such as smartphones, tablets, and wearable technology, where space is limited.
  • Automotive Interior Lighting: Appropriate for dashboard illumination, control buttons, and other small indicator lights in vehicles.
  • Control Panels and Instrumentation: Useful in control panels for machinery and industrial equipment, providing clear indication and backlighting.
  • Medical Devices: Suitable for backlighting and status indicators in various medical instruments where reliability and visibility are crucial.
  • Decorative and Architectural Lighting: Can be used in interior design and architectural projects for compact and bright lighting solutions.
  • Safety and Emergency Equipment: Appropriate for use in emergency lighting systems and safety gear, benefiting from its high brightness and small form factor.

RoHs Compliance, Pb-free              Anti-Static Attention

Electrical-optical characteristics:
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Package configuration & Internal circuit diagram
0603 SMD LED

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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