
The white 7 segment display is a pivotal component in the realm of electronic displays, known for its precision and clarity. Often referred to in specifications similar to the 0.40 7 segment display datasheet, this LED display combines compact design with high efficiency, making it an essential element in various electronic applications. In this detailed review, we explore the features, applications, and numerous advantages of the 0.39 inch 4-digit seven segment LED display, supplemented by insightful case studies and user testimonials.
Innovative Features of the 0.39 Inch 4-Digit Seven Segment LED Display The 0.39 inch 4-digit seven segment LED display stands out for its compact size and the ability to display numbers and characters with high clarity using LED segments. This white 7 segment display is particularly noted for its brightness and uniform color, which are critical for clear visibility across different lighting conditions.
Broad Spectrum of Applications This display is extensively used across various fields, including consumer electronics, healthcare equipment, and industrial machinery. Its implementation in devices like digital clocks, electronic meters, and retail price displays underscores its versatility. Furthermore, the display’s ability to interact seamlessly with systems like the 8 digit 7 segment display Arduino projects highlights its adaptability in both simple and complex technological applications.
Unmatched Readability and Energy Efficiency Energy efficiency is a hallmark of the 0.39 inch display, with its LED technology ensuring minimal power consumption while providing maximum visibility. This is especially beneficial in portable electronic devices, where power efficiency is crucial. The white LEDs ensure that the display remains bright and easily readable, which is essential for outdoor applications and devices used under bright lights.
Case Studies: Impactful Real-World Applications One significant case study involves the integration of the 0.39 inch 4-digit display in emergency response equipment. The visibility and reliability of the display have been crucial in enhancing the functionality of such equipment, enabling clear readability in various environmental conditions, which can be lifesaving.
User Testimonials: Endorsements from Professionals Electronics engineers and product designers frequently praise the white 7 segment display for its ease of integration and high reliability. Testimonials often highlight the display’s performance in terms of longevity and maintenance requirements, noting a decrease in service interruptions and lower long-term costs.
Benefits for Stakeholders in Electronics The adoption of the 0.39 inch 4-digit seven segment LED display brings substantial benefits to manufacturers, engineers, and end-users. Its reliability reduces maintenance costs and enhances product durability, while its aesthetic simplicity allows for more elegant design solutions, enhancing the overall product appeal.
Conclusion: Why Choose the 0.39 Inch Display for Your Projects? The 0.39 inch 4-digit seven segment LED display is more than just a component; it is a transformative element that enhances the functionality and efficiency of electronic devices. Its application across various industries and positive reviews from users and engineers alike make it a top choice for anyone looking to improve their electronic products.
Call to Action
Maximize the performance and appeal of your electronic products with the reliable and efficient 0.39 inch white 7 segment display. Explore the benefits today and see how this component can revolutionize your designs!

Features
- 0.39-Inch Digit Height (9.90mm): Provides clear visibility for numeric displays, suitable for applications where small, easily readable digits are required.
- Dimensions (Width x Height): 40.00 x 14.00mm: Its compact size makes it suitable for various applications where space efficiency is important.
- Low Current Operation: Energy-efficient, making it suitable for both battery-powered and low-power electronic devices.
- Common Anode and Cathode Options: Offers flexibility in circuit design, accommodating different electrical configurations.
- Excellent Character Appearance: Ensures digits are displayed clearly and legibly, enhancing readability.
- High Light Output: Bright enough for easy reading under various 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, making it 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: Provides 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.
Part No. (Cathode) | Part No. (Anode) | Emitting Color | Material | Peak Wavelength (nm) | Voltage typ.(v) | Voltage max. (v) | Luminous min | Luminous typ |
---|---|---|---|---|---|---|---|---|
BL-Q39I-41B |
BL-Q39J-41B |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
65 |
100 |
|
BL-Q39I-41D |
BL-Q39J-41D |
Super Red |
GaAlAs/DH |
660 |
2.2 |
75 |
115 |
|
BL-Q39I-41E |
BL-Q39J-41E |
Orange |
GaAsP/GaP |
635 |
2.5 |
80 |
115 |
|
BL-Q39I-41G |
BL-Q39J-41G |
Green |
GaP/GaP |
570 |
2.5 |
85 |
120 |
|
BL-Q39I-41H |
BL-Q39J-41H |
Red |
GaP/GaP |
700 |
2.6 |
8 |
10.5 |
|
BL-Q39I-41PG |
BL-Q39J-41PG |
Ultra Pure Green |
InGaN/SiC |
525 |
4.2 |
110 |
195 |
|
BL-Q39I-41S |
BL-Q39J-41S |
Hi Red |
GaAlAs/SH |
660 |
2.2 |
80 |
105 |
|
BL-Q39I-41UB |
BL-Q39J-41UB |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
80 |
125 |
|
BL-Q39I-41UE |
BL-Q39J-41UE |
Ultra Orange |
AlGaInP |
630 |
2.5 |
96 |
140 |
|
BL-Q39I-41UG |
BL-Q39J-41UG |
Ultra Green |
AlGaInP |
574 |
2.5 |
96 |
140 |
|
BL-Q39I-41UR |
BL-Q39J-41UR |
Ultra Red |
GaAlAs/DDH |
660 |
2.2 |
105 |
160 |
|
BL-Q39I-41UY |
BL-Q39J-41UY |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
85 |
135 |
|
BL-Q39I-41W |
BL-Q39J-41W |
Ultra White |
InGaN |
- |
4.2 |
160 |
||
BL-Q39I-41Y |
BL-Q39J-41Y |
Yellow |
GaAsP/GaP |
585 |
2.5 |
80 |
115 |