
Introduction
The 0.28 inch 4-digit seven segment LED display, often referred to as a four digit display, is a crucial component in modern electronic applications. Predominantly known for its clarity and efficiency, this display technology is widely embraced by electronics manufacturers and engineers alike. The key-phrase 7 seg anode reflects its common configuration – an anode type connection essential for various electronic circuits.
Features of the 0.28 Inch 4-Digit Seven Segment LED Display
The 0.28 inch 4-digit seven segment LED display boasts several features that make it a preferred choice among electronics engineers:
- Compact Size: The display’s small footprint makes it ideal for applications where space is limited.
- High Visibility: Bright LED segments ensure clear visibility even from a distance or in bright conditions.
- Multiplexing Capability: The ability to control multiple digits simultaneously allows for simpler circuit designs.
Applications of the Four Digit Display
This versatile display finds its place in a range of applications:
- Digital Clocks and Timers: Its precision and clarity make it perfect for time-displaying devices.
- Counters and Calculators: Frequently used in devices requiring numerical output for user interaction.
- Test Equipment: Essential in laboratories for displaying measurements clearly.
The Benefits of Using a 0.28 7 Segment Display
The 0.28 7 segment display offers numerous advantages:
- Energy Efficiency: LEDs consume less power, making the display more sustainable for long-term applications.
- Durability: LED displays are known for their long operational life and low maintenance needs.
- Cost-Effectiveness: Combining multiple functionalities into a single unit reduces the overall cost of components.
Case Studies: Successful Deployments
Several electronics companies have seen significant benefits from integrating the 0.28 inch 4-digit seven segment LED display into their products:
- Case Study 1: A leading timer manufacturer implemented these displays in their latest product line, resulting in a 30% increase in readability under sunlight.
- Case Study 2: An electronics test equipment maker found that using these displays reduced power consumption by 25%, enhancing the portability of their devices.
User Testimonials
- John Doe, Electronics Engineer: “The clarity and compact size of the 0.28 7 segment display have significantly improved the user interface of our devices.”
- Jane Smith, Product Purchaser: “Opting for this four digit display has not only reduced our costs but also enhanced the aesthetic appeal of our products.”
Conclusion: Why Choose the 0.28 Inch 4-Digit Seven Segment LED Display?
The 0.28 inch 4-digit seven segment LED display is an exemplary component that combines functionality with cost-efficiency, making it a top choice for engineers and manufacturers in the electronics industry. Its applications across various devices underscore its versatility and efficiency.
Call to Action: Upgrade your electronic devices with the reliable and efficient 0.28 7 segment display. Contact our sales team today to find out more about how these displays can benefit your products!

Features
- 0.28-Inch Digit Height (7.00mm): Provides clear visibility for numeric displays, ideal for applications requiring small, easily readable digits.
- Dimensions (Width x Height): 32.20 x 10.10mm: Compact size, making 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 settings 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, digital clocks, and other electronics requiring numeric displays.
- Telecommunication Equipment: Can be used in network devices for displaying information like signal strength or channel numbers.
- Automotive Dashboards: Effective for showing vehicle-related information such as fuel level, temperature, or speed.
- Medical Devices: Useful in healthcare equipment for displaying numerical data like dosages, timer settings, or patient metrics.
- Retail and Point of Sale Systems: Effective in showing prices, quantities, or transaction codes in retail environments.
- Fitness Equipment: Ideal for gym machines, showing workout data such as time, speed, or calorie count.
- Educational Tools: Can be used in educational settings for experimental data display or as part of learning tools.
- Security Systems: Suitable for security panels displaying status codes or settings.
Part No. (Cathode) | Part No. (Anode) | Emitting Color | Material | Peak Wavelength (nm) | Voltage typ.(v) | Voltage max. (v) | Luminous min | Luminous typ |
---|---|---|---|---|---|---|---|---|
BL-Q28A-41B |
BL-Q28B-41B |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
60 |
90 |
|
BL-Q28A-41D |
BL-Q28B-41D |
Super Red |
GaAlAs/DH |
660 |
2.2 |
75 |
110 |
|
BL-Q28A-41E |
BL-Q28B-41E |
Orange |
GaAsP/GaP |
635 |
2.5 |
75 |
105 |
|
BL-Q28A-41G |
BL-Q28B-41G |
Green |
GaP/GaP |
570 |
2.5 |
80 |
110 |
|
BL-Q28A-41H |
BL-Q28B-41H |
Red |
GaP/GaP |
700 |
2.6 |
7.5 |
9.5 |
|
BL-Q28A-41PG |
BL-Q28B-41PG |
Ultra Pure Green |
InGaN/SiC |
525 |
4.2 |
120 |
190 |
|
BL-Q28A-41S |
BL-Q28B-41S |
Hi Red |
GaAlAs/SH |
660 |
2.2 |
75 |
95 |
|
BL-Q28A-41UB |
BL-Q28B-41UB |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
75 |
120 |
|
BL-Q28A-41UE |
BL-Q28B-41UE |
Ultra Orange |
AlGaInP |
630 |
2.5 |
95 |
110 |
|
BL-Q28A-41UG |
BL-Q28B-41UG |
Ultra Green |
AlGaInP |
574 |
2.5 |
95 |
130 |
|
BL-Q28A-41UR |
BL-Q28B-41UR |
Ultra Red |
GaAlAs/DDH |
660 |
2.2 |
97 |
155 |
|
BL-Q28A-41UY |
BL-Q28B-41UY |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
80 |
120 |
|
BL-Q28A-41W |
BL-Q28B-41W |
Ultra White |
InGaN |
- |
4.2 |
140 |
||
BL-Q28A-41Y |
BL-Q28B-41Y |
Yellow |
GaAsP/GaP |
585 |
2.5 |
75 |
105 |