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
In the realm of digital displays, the 0.30 inch 4-digit seven segment LED display has set a benchmark for precision and efficiency. Particularly popular in its 7 seg common cathode configuration, this compact and powerful display solution is ideal for a variety of applications where accuracy and clear visibility are paramount. From consumer electronics to industrial control systems, the versatility of this display makes it a top choice among engineers and developers.
Comprehensive Features of the 0.30 Inch Display
High Visibility: Each segment of the display features a bright LED that ensures it can be easily read from a distance and in different lighting conditions.
Compact Size: The 0.30 inch form factor is meticulously designed to offer the optimal balance between size and readability, making it suitable for space-constrained applications.
Energy Efficient: This LED display consumes minimal power, making it an ideal choice for portable devices that require a long battery life.
Easy Integration: With common cathode connectivity, this display simplifies circuit design, allowing for easy integration into various electronic systems.
Applications Across Industries
The 0.30 inch 4-digit seven segment LED display excels in numerous sectors:
- Consumer Electronics: Used in digital clocks, microwaves, and other appliances that require a precise and quick readout.
- Medical Equipment: Essential for devices like blood pressure monitors and infusion pumps where clear information display is critical.
- Industrial Automation: Relied upon in panel meters and control systems for monitoring and displaying measurements accurately.
Advantages Over Competing Technologies
Reliability: These displays are known for their durability and ability to perform consistently under rigorous conditions.
Cost-Effectiveness: Low manufacturing costs combined with high reliability reduce the total cost of ownership for products utilizing these displays.
User-Friendly: The clarity and straightforward design of the display enhance user interaction, making devices more intuitive to use.
Real-World Impact: Case Studies
Case Study 1: A leading electronics manufacturer integrated the 0.30 inch display into their latest digital thermostat model, resulting in a 30% increase in user satisfaction due to improved interface readability.
Case Study 2: An automotive supplier used the display in vehicle dashboard instruments, which enhanced the aesthetic appeal and functionality, leading to a boost in sales.
User Testimonials
From a Product Manager: “Incorporating the 0.30 inch LED display into our products has significantly enhanced the visual appeal and operational efficiency, making it a hit among our customers.”
From a Design Engineer: “The reliability and ease of programming of the 7 seg common cathode display have made it indispensable in our development process.”
Conclusion
The 0.30 inch 4-digit seven segment LED display demonstrates exceptional versatility and reliability, making it an essential component in a multitude of applications. Its ability to deliver precision and clarity in a compact form factor ensures that it remains a preferred choice for industry professionals worldwide.
Call to Action
Elevate your electronic designs with the reliable and precise 0.30 inch 4-digit seven segment LED display. Contact us today to learn how our cutting-edge display solutions can enhance your projects and meet your specific needs!

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-Q30E-41B |
BL-Q30F-41B |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
60 |
90 |
|
BL-Q30E-41D |
BL-Q30F-41D |
Super Red |
GaAlAs/DH |
660 |
2.2 |
70 |
110 |
|
BL-Q30E-41E |
BL-Q30F-41E |
Orange |
GaAsP/GaP |
635 |
2.5 |
70 |
105 |
|
BL-Q30E-41G |
BL-Q30F-41G |
Green |
GaP/GaP |
570 |
2.5 |
70 |
110 |
|
BL-Q30E-41H |
BL-Q30F-41H |
Red |
GaP/GaP |
700 |
2.6 |
7.5 |
10 |
|
BL-Q30E-41PG |
BL-Q30F-41PG |
Ultra Pure Green |
InGaN/SiC |
525 |
4.2 |
115 |
195 |
|
BL-Q30E-41S |
BL-Q30F-41S |
Hi Red |
GaAlAs/SH |
660 |
2.2 |
75 |
100 |
|
BL-Q30E-41UB |
BL-Q30F-41UB |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
75 |
120 |
|
BL-Q30E-41UE |
BL-Q30F-41UE |
Ultra Orange |
AlGaInP |
630 |
2.5 |
95 |
130 |
|
BL-Q30E-41UG |
BL-Q30F-41UG |
Ultra Green |
AlGaInP |
574 |
2.5 |
95 |
130 |
|
BL-Q30E-41UR |
BL-Q30F-41UR |
Ultra Red |
GaAlAs/DDH |
660 |
2.2 |
97 |
150 |
|
BL-Q30E-41UY |
BL-Q30F-41UY |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
80 |
120 |
|
BL-Q30E-41W |
BL-Q30F-41W |
Ultra White |
InGaN |
- |
4.2 |
140 |
||
BL-Q30E-41Y |
BL-Q30F-41Y |
Yellow |
GaAsP/GaP |
585 |
2.5 |
70 |
105 |

