Obtain 3D specification files
To examine all 3D specifications, save the files to your local drive and open them with your 3D application.
Lens colors in 3D files are solely for visual representation; consult the Datasheet for accurate lens type and color information.
In the event of a mismatch, the dimensions in the datasheet take precedence over the 3D specifications.
Introduction
The 0.30 inch 4-digit seven segment LED display has emerged as a vital component in modern digital electronics, renowned for its precise display capabilities and compact design. Commonly featured in numerous 7 seg display datasheets, this device is essential for engineers and manufacturers seeking reliable and efficient display solutions. In this article, we’ll explore the features, applications, benefits, and real-world effectiveness of this innovative technology, enriched by user testimonials and case studies.
Unveiling the Features of the 0.30 Inch Display
Enhanced Visual Clarity: With each segment crafted for optimal visibility, this display ensures that information is easily readable, a critical feature for devices used in diverse lighting conditions.
Compact Efficiency: The 0.30 inch size of the display is perfect for applications where space saving is crucial without compromising the quality of the readout.
Energy Conservation: Engineered for low power consumption, the display is ideal for battery-powered devices, extending their operational life significantly.
Ease of Integration: Compatibility with a wide range of microcontrollers makes this display a preferred choice for seamless integration into various electronic projects.
Broad Applications in the Electronics Industry
This LED display is extensively used in:
- Consumer Electronics: From wristwatches and calculators to more complex household appliances.
- Medical Equipment: Vital in devices requiring precise, quick-read information such as glucose monitors and blood pressure meters.
- Automotive: Enhances the functionality of dashboard instruments, providing clear and immediate feedback to drivers.
Advantages of Using the 0.30 Inch LED Display
Reliability: The robust construction of the display ensures it can withstand frequent use and harsh conditions, making it ideal for both consumer and industrial applications.
Cost-Effectiveness: Due to its long lifespan and minimal maintenance requirements, this display offers significant cost savings over other technologies.
User-Friendly Design: The simplicity and effectiveness of the display enhance the overall user experience by providing clear and immediate data visualization.
Real-World Success: Case Studies
Case Study 1: A leading consumer electronics company integrated the 0.30 inch display into their line of programmable cooking timers, resulting in a 30% increase in customer satisfaction due to enhanced usability and design.
Case Study 2: An automotive manufacturer employed these displays in a new model of eco-friendly vehicles to provide drivers with real-time, easy-to-read data on fuel efficiency, contributing to a higher market uptake.
User Testimonials
From a Design Engineer: “We rely on the 0.30 inch seven segment display for its precision and durability. It’s our standard choice for small, consumer-focused devices.”
From a Procurement Manager: “These displays are not only cost-efficient but also incredibly reliable. Our long-term maintenance costs have drastically decreased since switching to this model.”
Conclusion
The 0.30 inch 4-digit seven segment LED display represents a leap forward in display technology, combining functionality, efficiency, and reliability. Its widespread adoption across various sectors is a testament to its ability to meet the evolving demands of the electronics industry.
Call to Action
Revolutionize your electronic products with our high-quality 0.30 inch 4-digit seven segment LED display. Contact us today to learn how this advanced technology can improve your offerings and satisfy your customers!

Features
- 0.30-Inch Digit Height (7.60mm): Provides clear visibility for numeric displays, ideal for applications that require small-sized digits.
- Dimensions (Width x Height): 30.40 x 13.20mm: Compact and space-efficient, making it suitable for a variety of applications where space is at a premium.
- 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 use in 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 for monitoring and controlling processes.
- Electronic Scoreboards: Ideal for sports venues, displaying scores or other information.
- Digital Clocks and Timers: Appropriate for timekeeping devices in various settings, from kitchens to sporting events.
- Consumer Electronics: Useful in household appliances and gadgets that require numeric displays.
- Automotive Dashboards: Suitable for displaying information such as fuel level, temperature, or speed in vehicles.
- Medical Devices: Can be used in healthcare equipment for displaying measurements or timer functions.
- Telecommunication Systems: Ideal for network devices, showing data such as signal strength or channel numbers.
- Retail Price Displays: Effective in showing prices or quantities in retail settings.
- Home Automation Systems: Useful in smart home devices for displaying settings or statuses.
- Portable Electronic Devices: Suitable for handheld gadgets where space is limited.
- Laboratory Equipment: Can be used in scientific instruments for displaying measurements or experimental data.
- Security Systems: Appropriate 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-Q30A-41B |
BL-Q30B-41B |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
60 |
90 |
|
BL-Q30A-41D |
BL-Q30B-41D |
Super Red |
GaAlAs/DH |
660 |
2.2 |
70 |
110 |
|
BL-Q30A-41E |
BL-Q30B-41E |
Orange |
GaAsP/GaP |
635 |
2.5 |
70 |
105 |
|
BL-Q30A-41G |
BL-Q30B-41G |
Green |
GaP/GaP |
570 |
2.5 |
70 |
110 |
|
BL-Q30A-41H |
BL-Q30B-41H |
Red |
GaP/GaP |
700 |
2.6 |
7.5 |
10 |
|
BL-Q30A-41PG |
BL-Q30B-41PG |
Ultra Pure Green |
InGaN/SiC |
525 |
4.2 |
115 |
195 |
|
BL-Q30A-41S |
BL-Q30B-41S |
Hi Red |
GaAlAs/SH |
660 |
2.2 |
75 |
100 |
|
BL-Q30A-41UB |
BL-Q30B-41UB |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
75 |
120 |
|
BL-Q30A-41UE |
BL-Q30B-41UE |
Ultra Orange |
AlGaInP |
630 |
2.5 |
95 |
130 |
|
BL-Q30A-41UG |
BL-Q30B-41UG |
Ultra Green |
AlGaInP |
574 |
2.5 |
95 |
130 |
|
BL-Q30A-41UR |
BL-Q30B-41UR |
Ultra Red |
GaAlAs/DDH |
660 |
2.2 |
97 |
150 |
|
BL-Q30A-41UY |
BL-Q30B-41UY |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
80 |
120 |
|
BL-Q30A-41W |
BL-Q30B-41W |
Ultra White |
InGaN |
- |
4.2 |
140 |
||
BL-Q30A-41Y |
BL-Q30B-41Y |
Yellow |
GaAsP/GaP |
585 |
2.5 |
70 |
105 |

