0.25 inch three-digit seven segment led display

0.25 inch three-digit seven segment led display

Series No:





15 x 8 x 4

Character Height: (inch)

0.25 inch






The 0.25 inch three-digit seven segment LED display, commonly referred to as the 7 seg display, is an essential component in modern electronics, known for its compact size and versatile applications. This display, also recognized as a 3 7 segment display, is integral to various devices and systems. Renowned for its precision and efficiency, the 7 seg display is widely utilized in both consumer and industrial electronics. This article explores the features, applications, benefits, case studies, and user testimonials of the 0.25 inch three-digit seven segment LED display, emphasizing its importance to electronics manufacturers, engineers, purchasers, and administrators.

Features of the 0.25 Inch Three-Digit Seven Segment LED Display

Compact and Efficient Design

The 0.25 inch 7 seg display is designed to offer maximum efficiency in a minimal form factor. Its small size makes it ideal for applications where space is limited, such as in handheld devices, compact meters, and small-scale electronic systems. Despite its compact size, the display provides clear and bright digits, ensuring readability.

High Reliability

A standout feature of the 7 seg display is its reliability. Built to withstand various environmental conditions, these displays offer long-term performance with minimal maintenance. The LED technology ensures that the display is securely mounted and resistant to vibrations and mechanical shocks.

Versatile Integration

The 7 seg display is compatible with a wide range of circuits and systems. Whether you’re working on a seven digit display or interfacing with various microcontrollers, this display can be seamlessly integrated. The standard multiple 7 segment display configuration ensures straightforward connectivity and control.

Applications of the 0.25 Inch Three-Digit Seven Segment LED Display

Consumer Electronics

In consumer electronics, the 7 seg display is often used in devices like digital clocks, calculators, and home appliances. Its compact size and clear display make it perfect for showing numerical data in a user-friendly format.

Industrial Equipment

For industrial applications, the 0.25 inch 7 seg display is used in control panels, instrumentation, and measurement devices. Its reliability and precision are crucial for environments where accurate data display is necessary for operational efficiency.

Medical Devices

In the medical field, precise and reliable data display is essential. The 7 seg display is used in medical instruments such as blood pressure monitors, glucose meters, and other diagnostic tools, providing clear readings in a compact format.

Benefits of the 0.25 Inch Three-Digit Seven Segment LED Display

Enhanced Durability

The LED technology used in these displays ensures enhanced durability. The displays are less prone to damage from physical impacts and environmental factors, making them suitable for demanding applications.

Energy Efficiency

The 7 seg display is designed to be energy-efficient, consuming less power compared to larger or more complex display technologies. This is particularly beneficial for battery-operated devices where power conservation is crucial.

Ease of Integration

With a standard multiple 7 segment display configuration, these displays are easy to integrate into various circuits and systems. This simplifies the design process and reduces the time needed to bring products to market.

Case Studies

Case Study 1: Consumer Electronics

A leading manufacturer of digital kitchen scales implemented the 0.25 inch 7 seg display to show weight measurements. The compact size of the display allowed for a sleek and modern design, while the clear digits ensured easy readability. The use of the 7 seg display resulted in a product that was both aesthetically pleasing and functional.

Case Study 2: Industrial Automation

An automation company integrated the 7 seg display into their control panels for industrial machinery. The displays were used to show real-time data such as machine speed and operational status. The high reliability and durability of the displays ensured they performed well in harsh industrial environments, leading to increased efficiency and reduced downtime.

Case Study 3: Medical Instruments

A medical device company used the 0.25 inch 7 seg display in their portable glucose meters. The compact size and low power consumption of the displays made them ideal for handheld medical devices. The clear and precise readings provided by the displays helped improve patient monitoring and management.

User Testimonials

Testimonial 1: Electronics Engineer

“As an electronics engineer, I have found the 0.25 inch 7 seg display to be incredibly versatile and reliable. Its compact size does not compromise on readability, and it integrates seamlessly into a variety of projects.”

Testimonial 2: Industrial Equipment Manufacturer

“We have been using the 7 seg display in our control panels for years, and it has never let us down. The durability and clear display are crucial for our applications, and these displays have consistently met our expectations.”

Testimonial 3: Medical Device Developer

“Our portable medical devices rely heavily on the precision and reliability of the 0.25 inch 7 seg display. The displays provide clear and accurate readings, which are essential for patient care. We are very satisfied with their performance.”


The SMD seven segment display 0.25 inch is a vital component for various electronic applications, offering high visibility, reliability, and ease of integration. Whether used in consumer electronics, industrial equipment, or medical devices, the 7 seg display provides clear and accurate information in a compact and durable format. Its compatibility with various circuits and systems, including the standard multiple 7 segment display configuration, makes it an excellent choice for a wide range of projects.

For those seeking a reliable and efficient display solution, the 0.25 inch 7 seg display is a top contender. Its benefits are clear, and the positive feedback from users across different industries underscores its effectiveness.

Call to Action

If you are looking to enhance the performance and efficiency of your electronic devices, consider integrating the 0.25 inch 7 seg display. Contact us today to learn more about how this versatile and durable display can meet your needs.

0.25 inch three-digit seven segment led display
0.25 inch three-digit seven segment led display


  1. 0.25 inch digit height (6.20mm)
  2. Compact size with a width x height of 15*8mm
  3. Low current operation for energy efficiency
  4. Available in common anode and common cathode configurations
  5. Excellent character appearance with high light output
  6. Easy mounting on PC boards or sockets
  7. IC compatible for seamless integration
  8. Multicolor options available
  9. Categorized for luminous intensity
  10. Technically rugged for durability
  11. Standard gray surface with white segment
  12. RoHs compliance for environmental friendliness


  1. Consumer electronics
  2. Industrial equipment
  3. Medical devices
  4. Automotive displays
  5. Instrumentation
Electrical-optical characteristics:
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Package configuration & Internal circuit diagram
0.25 inch three-digit seven segment led display

All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.

Partno description:

LED seven segment , called also LED numeric display, is widely applied in home appliance panel display and other application.

Part No of Seven segment LED display

More information

Reflector Surface color (1st number)/ Segment Lens color (2nd number):

Ref Surface ColorWhiteBlackGrayRedGreen 
Epoxy ColorWater clearWhite diffusedRed DiffusedGreen DiffusedYellow Diffused 

Absolute maximum ratings (Ta= 25°C)

Parameter SDUREYGUnit
Forward Current IF 252525252530mA
Power Dissipation Pd 606060606065mW
Reverse Voltage VR 555555V
Peak Forward Current IPF (Duty 1/10 @1KHZ) 150150150150150150mA
Operation Temperature TOPR-40 to +80°C
Storage Temperature TSTG-40 to +85°C
Lead Soldering Temperature TSOL  Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb)°C

Absolute maximum ratings (Ta= 25°C)

Forward Current IF3030303030303030mA
Power Dissipation Pd7565656575110120120mW
Reverse Voltage VR55555555V
Peak Forward Current IPF (Duty 1/10 @1KHZ)150150150150150150100100mA
Operation Temperature TOPR-40 to +80°C
Storage Temperature TSTG-40 to +85°C
Lead Soldering Temperature TSOLMax.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb)°C
Related Information

Applied for:
dvd player radio train instrument refrigerator

1. Application
The Seven Segment LED is widely applied for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Checking with 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

2. Storage
The storage ambient for the Seven Segment LED should not exceed 30℃ temperature or 70% relative humidity.
For extended storage out of their original packaging, it is recommended that the Seven Segment LEDs be stored
in a sealed container with appropriate desiccant, or in a desiccator with nitrogen ambient.

3. Cleaning
Avoid using any unspecified chemical solvent to clean LED . For example, Trichloroethylene, Chlorosen, Acetone, and Diflon S3MC.
Any cleaning method can only be taken under normal temperature in one minute or less if it is required.
Use water to clean the Seven Segment LED if necessary under room temperature
dry it immediately after that.

Any unsuitable stress applied to the epoxy may break bonding wires in LED
Any forming on lead pin must be done before soldering, not during or after soldering.
Avoid applying any stress to resin in order to prevent the epoxy fracture and break on bonding wire.
While forming, please use a tie bar cut or equivalent to hold or bend the pin.
2mm from the base of resin is the minimum distance for the place bending the lead pin.
Avoid bending the lead pin at the same point twice or more.

seven segment display forming caution


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

LED dirve IC by  Maxim Integrated

 MAX6959  4½-Digit LED Display Driver

 MAX6958  4½-Digit LED Display Driver

 MAX6955  7-, 14-, 16-Segment LED Display Driver

 MAX6956  LED Static Display Driver and I/O Port

 MAX6954  7-, 14-, 16-Segment LED Display Driver

 MAX6952  5 x 7 Matrix LED Display Driver

 MAX6957  LED Static Display Driver and I/O Port

MAX6950  5-Digit LED Display Driver

 MAX6951  8-Digit LED Display Driver

 ICM7212  4-Digit LED Driver

 ICM7212A  4-Digit LED Driver

 ICM7212AM  4-Digit LED Driver

 ICM7212M  4-Digit LED Driver

 ICM7218A  8-Digit LED Driver

 ICM7218B  8-Digit LED Driver

 ICM7218C  8-Digit LED Driver

 ICM7218D  8-Digit LED Driver

 MAX7221  8-Digit LED Display Driver

 MAX7219  8-Digit LED Display Driver

 provide in-depth design and IC selection help for design engineers.  Each solution is dedicated to a popular end-equipment type and features design information, circuits and a block diagram.   Within a block diagram, click on a block to view best-fit integrated circuits recommended by Maxim engineers.

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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