0.28 inch 4-digit seven segment led display | ultra Blue

Article No:

BL-Q28M-41UB

Color: 

ultra Blue

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Product Series
Series No:BL-Q28M-41
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Dimension
32.2 × 10.1 × 5.8 mm
Description:
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Introduction

The 0.28 inch 4-digit seven segment LED display, often recognized as an eight segment display, plays a pivotal role in modern electronic devices where precision and efficiency are crucial. This article explores the features, applications, benefits, and the transformative impact this technology has on electronics manufacturing, guided by in-depth case studies and user testimonials.

Comprehensive Features of the 0.28 Inch Display

Optimal Size and Clarity: Despite its compact size, the 0.28 inch display offers clear and distinct readability, which is essential for applications requiring precise data presentation. Enhanced Brightness: The use of LED technology ensures that the display remains visible in various lighting conditions, from the dimly lit interiors of a car to the bright lights of outdoor appliances. Energy Efficiency: LEDs are well-known for their low power consumption, which extends the battery life of portable devices that incorporate these displays. Ease of Programming: The simplicity of integrating these displays with various microcontrollers makes them a preferred choice for engineers looking to speed up development time and reduce complexity.

Diverse Applications in Electronics

This LED display is widely used across several sectors:
  • Consumer Electronics: Ideal for household appliances, digital clocks, and personal gadgets.
  • Automotive Displays: Commonly used in dashboard readouts, enhancing driver experience with its clarity.
  • Industrial Equipment: From control panels to monitoring systems, these displays ensure reliability and accuracy.

Advantages for Manufacturers and Consumers

Cost-Effectiveness: The economic production and durability of seven segment displays reduce overall costs for manufacturers and consumers alike. Customizability: The ability to customize the display for various functions makes it versatile across multiple product lines, enhancing its appeal in the global market. Reliability: Known for their robustness, these displays can operate under extreme conditions, which is vital for industrial and automotive applications.

Real-World Impact: Case Studies

Case Study 1: A leading healthcare equipment manufacturer implemented the 0.28 inch display in their latest line of portable heart rate monitors, significantly enhancing device readability and patient engagement. Case Study 2: An automotive company integrated these displays into their new electric vehicle (EV) models, resulting in improved user interface and customer satisfaction in dashboard functionalities.

User Testimonials

From a Senior Product Designer: "The integration of the 0.28 inch LED display has revolutionized our product designs, offering our clients a perfect blend of size and visibility." From a Supply Chain Manager: "Opting for this LED display has not only reduced our costs but also improved our product durability and customer feedback has never been better."

Conclusion

The 0.28 inch 4-digit seven segment LED display is more than just a component; it's a crucial element that enhances the functionality, efficiency, and aesthetic of electronic devices. Its integration into various technologies continues to set high standards in the electronics industry.

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Ready to enhance your product offerings with the reliable and efficient 0.28 inch 4-digit seven segment LED display? Contact us today to learn how our cutting-edge solutions can benefit your business!
0.28 inch 4-digit seven segment led display
0.28 inch 4-digit seven segment led display

Features

  • 0.28-Inch Digit Height (7.00mm): Provides clear visibility for numeric displays, suitable for applications requiring small, easily readable digits.
  • Dimensions (Width x Height): 32.20 x 10.10mm: Its compact size makes it suitable for various applications where space efficiency is crucial.
  • Low Current Operation: Energy-efficient, beneficial for both battery-powered and low-power electronic devices.
  • Common Anode and Cathode Options: Offers flexibility in circuit design, accommodating various electronic configurations.
  • Excellent Character Appearance: Ensures digits are displayed clearly and legibly, enhancing readability.
  • High Light Output: Bright enough for easy reading under different lighting conditions.
  • Easy Mounting on PC Boards or Sockets: Designed for straightforward installation, facilitating efficient integration into electronic systems.
  • IC Compatible: Can be integrated with integrated circuits, suitable for complex electronic designs.
  • Multicolor Availability: Provides options for different colors, adding versatility in design and functional use.
  • Categorized for Luminous Intensity: Ensures consistent brightness levels across units, important for uniform display quality.
  • Technically Rugged: Durable and reliable, capable of withstanding various operational environments.
  • Standard Design: Gray Surface, White Segment: Offers a classic look with high contrast for ease of reading.
  • RoHS Compliance: Meets environmental standards, adhering to regulations that restrict hazardous substances.

Applications

  • Industrial Control Panels: Suitable for use in industrial environments where clear, multi-digit numeric displays are necessary for monitoring and control.
  • Public Information Displays: Ideal for transportation stations, public squares, or event venues where clear, multi-digit displays are needed.
  • Consumer Electronics: Appropriate for household appliances and entertainment systems requiring multiple numeric displays.
  • Telecommunication Equipment: Can be used in networking devices for displaying numerical information like channel numbers or signal strength.
  • Retail and Point of Sale Systems: Effective in displaying prices, quantities, or codes in retail environments.
  • Healthcare Equipment: Useful in medical devices for showing various numerical data such as patient vitals or timer settings.
  • Automotive Displays: Suitable for vehicle dashboards to display information like temperature, speed, or fuel levels.
  • Fitness Equipment: Ideal for gym machines, showing workout data such as time, speed, or calorie count.
  • Educational Tools: Used in educational settings for timers or displaying experiment data.
  • Safety and Emergency Equipment: Suitable for safety systems displaying critical numerical information.
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Dimension and Circuit Drawing:
Related Article List
Filters Sort results
Reset Apply
Article No
color
material
wavelength
apperance
v_typ
v_max
luminous_min
luminous_typ
degree
ultra Blue
InGaN/SiC
470
4.2
60
90
Super Red
GaAlAs/DH
660
2.2
75
110
Orange
GaAsP/GaP
635
2.5
75
105
Green
GaP/GaP
570
2.5
80
110
Red
GaP/GaP
700
2.6
7.5
9.5
Ultra Pure Green
InGaN/SiC
525
4.2
120
190
Hi Red
GaAlAs/SH
660
2.2
75
95
ultra Blue
InGaN/SiC
470
4.2
75
120
Ultra Orange
AlGaInP
630
2.5
95
110
Ultra Green
AlGaInP
574
2.5
95
130
Ultra Red
GaAlAs/DDH
660
2.2
97
155
Ultra Yellow
AlGaInP
590
2.5
80
120
Ultra White
InGaN
-
4.2
140
Yellow
GaAsP/GaP
585
2.5
75
105
Related Information

Soldering

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

 product.

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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