0.3 inch height 5×7 LED dot matrix | Ultra Amber

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Ultra Amber




10 x 14 x 8


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Product Series
spcial display
Series No:BL-M03A571
Specification Download:
10 × 14 × 8 mm


In the competitive field of electronic displays, the 0.3 inch height 5x7 LED dot matrix stands out as a versatile and reliable solution. Known for its compact design and clarity, the 5 * 7 dot matrix display offers an array of applications, from advertising panels to consumer electronics interfaces. This article delves into the technology behind these displays, their features, applications, and the benefits they bring to various industries, supplemented by case studies and user testimonials.

Understanding the 5x7 LED Dot Matrix Display

The 5x7 LED dot matrix display refers to an arrangement of LEDs in a 5 column by 7 row matrix which can be used to display characters and graphics in a mono color format. This configuration allows for high visibility and clarity, making it an excellent choice for both simple and complex display needs. Key Features:
  • Resolution and Clarity: Provides clear visualization of characters and symbols.
  • Versatility: Suitable for both indoor and outdoor applications.
  • Energy Efficiency: Consumes less power compared to other lighting technologies.

Applications of the 5x7 LED Dot Matrix

The adaptability of the 5x7 dot matrix display makes it ideal for a variety of applications:
  • Consumer Electronics: Used in digital clocks, calculators, and other handheld devices.
  • Public Display Systems: Visible in train schedules, stock tickers, and information boards.
  • Advertising: Utilized in dynamic advertising signs and billboards.

Benefits of Using the 0.3 Inch 5x7 LED Dot Matrix

Adopting this technology offers numerous advantages:
  • Low Power Consumption: Ideal for battery-operated devices.
  • High Durability: Resistant to environmental factors such as dust and moisture.
  • Customizability: Flexible design options for specific project requirements.

Case Studies: Practical Applications in Action

These real-world examples highlight the effectiveness of the 5x7 LED dot matrix in various settings:
  1. Transportation Signage: A city's metro system implemented these displays across all stations, improving commuter experience with real-time updates.
  2. Consumer Product Line: A leading electronics company integrated these displays into their new line of portable music players, enhancing user interaction.

User Testimonials: Feedback from Industry Professionals

  • Product Manager in Consumer Electronics: "The 5x7 dot matrix displays have allowed us to develop user-friendly interfaces that are both cost-effective and energy-efficient."
  • Signage Specialist: "Our clients have been extremely satisfied with the upgrade to 5x7 LED displays for their outdoor advertising needs, noting the improved clarity and reliability."


The 0.3 inch height 5x7 LED dot matrix is more than just a component; it is a transformative solution for display technology. With its versatility and efficiency, it continues to benefit a wide range of industries, pushing the boundaries of what is possible in electronic displays. Call to Action: Ready to enhance your display solutions with advanced, reliable technology? Contact us today to see how our 5x7 LED dot matrix displays can revolutionize your products or advertising strategies.
0.3 inch height 5x7 LED dot matrix
0.3 inch height 5x7 LED dot matrix
Features: 0.3-inch 5x7 LED Dot Matrix
  • Matrix height: 19.7mm
  • Dot size: 1.90mm (circle dot)
  • Column: 5, Row: 7
  • Overall dimensions: 12.70 x 17.80mm
  • Low-current operation
  • High contrast and light output
  • Compatible with ASCII
  • RoHS compliance
  • Alphanumeric displays
  • Scrolling text displays
  • Electronic message boards
  • Time and temperature displays
  • Indoor and outdoor signs
  • Information displays
Dimension and Circuit Drawing:
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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