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 1.2 inch 4-digit seven segment LED display stands as a pivotal innovation in the field of electronic digital displays, offering crisp, clear visualization of numbers in a compact format. Commonly referred to as the 7 seg display, this device has revolutionized how information is presented in both consumer and commercial applications. Integrating the versatility of the four digit 7 segment display into various devices enhances usability and functionality, making it a staple in the electronics industry.
Key Features of the 1.2 Inch 4-Digit Seven Segment LED Display
This LED display combines functionality with aesthetic appeal, providing a reliable and efficient way to convey numerical data.
High Visibility and Brightness
- Clear Readout: The large 1.2-inch digits are easily readable from a distance, which is crucial for applications like electronic meters or public information displays.
- Brightness Control: Adjustable brightness ensures that the display can be seen in a variety of lighting conditions, from bright sunlight to dimly lit rooms.
Compact and Energy Efficient
- Space-Saving Design: The integration of four digits into a single display module maximizes space efficiency, making it ideal for compact device applications.
- Low Power Consumption: LED technology is renowned for its energy efficiency, reducing the overall power requirements of the devices in which it is used.
Applications Across Various Industries
The 1.2 inch 4-digit seven segment LED display is versatile, finding its place in numerous applications:
- Consumer Electronics: Used in clocks, calculators, and other household devices where quick numerical readout is necessary.
- Industrial Equipment: Ideal for displaying readings on measurement tools, timers, and counters in industrial settings.
- Medical Devices: Employed in various medical equipment for displaying vital statistics such as heart rate or respiratory rate counters.
Benefits of Using the 1.2 Inch 4-Digit Seven Segment LED Display
Adopting this LED display technology brings numerous advantages to manufacturers and end-users alike:
- Enhanced Accuracy: The distinct separation of each digit ensures minimal errors in reading data, crucial for precision-dependent environments.
- Durability: LEDs are robust, with a longer lifespan compared to traditional display technologies, which translates to reduced maintenance costs.
- Versatility: Suitable for both indoor and outdoor applications, the displays can be customized to fit a wide range of operating conditions.
Real-World Impact: Case Studies and User Testimonials
Case Study 1: Automotive Dashboard Upgrade
An automotive company integrated the 1.2 inch 4-digit 7 segment display into their new dashboard design, enhancing the driver interface by providing clearer speedometer and fuel gauge readings.
Feedback from the Lead Automotive Designer: “The upgrade to 7 segment LED displays has not only improved the aesthetic appeal of our dashboards but also enhanced the readability, which our customers greatly appreciate.”
Case Study 2: Home Appliance Innovation
A leading home appliance manufacturer used this LED display in their new line of ovens and microwaves, allowing for easier timer settings and temperature displays.
Testimonial from the Product Manager: “Our new range with the four digit 7 segment displays has received outstanding feedback for ease of use and excellent visibility, improving user satisfaction dramatically.”
Conclusion
The 1.2 inch 4-digit seven segment LED display exemplifies cutting-edge display technology with its blend of efficiency, durability, and versatility. Its broad spectrum of applications and benefits underscores its value, making it a preferred choice for enhancing digital display solutions across various sectors.
Call to Action: Elevate your products with the innovative 1.2 inch 4-digit 7 segment LED display. Embrace clarity and efficiency in your digital readouts. Contact us today to integrate these displays into your next project!

Features
- 1.2-Inch Digit Height (30.6mm): Offers clear visibility for numeric displays, suitable for applications where larger digits are required.
- Dimensions (Width x Height): 120 x 40.8mm: Large size, making it suitable for applications where visibility from a distance is important.
- Low Current Operation: Energy-efficient, beneficial for both battery-powered and low-power electronic devices.
- Common Anode and Cathode Options: Provides 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 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, suitable for complex electronic designs.
- Multicolor Availability: Offers 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
- Public Information Displays: Ideal for transportation stations, public squares, or event venues where large, clear numeric displays are needed.
- Industrial Control Panels: Suitable for use in industrial environments where clear, large numeric displays are necessary for monitoring and control.
- Advertising Displays: Effective in retail settings or for advertising purposes where large, eye-catching numeric displays are beneficial.
- Scoreboards: Perfect for sports arenas, gyms, or other venues requiring large, visible scoring or timing displays.
- Educational Tools: Can be used in educational settings for displaying numeric information in a visually engaging manner.
- Healthcare Equipment: Useful in healthcare settings for equipment that requires large, easy-to-read numeric displays.
- Digital Clocks and Timers: Appropriate for large-format timekeeping devices in public spaces, workplaces, or event settings.
- Event Countdown Displays: Suitable for events or competitions where large, visible countdowns or timers are required.
- Automotive and Transportation Displays: Can be used in large vehicle dashboards or transportation information systems for displaying critical data.
Part No. (Cathode) | Part No. (Anode) | Emitting Color | Material | Peak Wavelength (nm) | Voltage typ.(v) | Voltage max. (v) | Luminous min | Luminous typ |
|---|---|---|---|---|---|---|---|---|
BL-Q120A-41B |
BL-Q120B-41B |
ultra Blue |
InGaN/SiC |
470 |
4.2 |
170 |
||
BL-Q120A-41D |
BL-Q120B-41D |
Super Red |
GaAlAs/DH |
660 |
2.2 |
180 |
||
BL-Q120A-41E |
BL-Q120B-41E |
Orange |
GaAsP/GaP |
635 |
2.5 |
170 |
||
BL-Q120A-41G |
BL-Q120B-41G |
Green |
GaP/GaP |
570 |
2.5 |
170 |
||
BL-Q120A-41PG |
BL-Q120B-41PG |
Ultra Pure Green |
InGaN/SiC |
525 |
4.2 |
230 |
||
BL-Q120A-41S |
BL-Q120B-41S |
Hi Red |
GaAlAs/SH |
660 |
2.2 |
150 |
||
BL-Q120A-41UE |
BL-Q120B-41UE |
Ultra Orange |
AlGaInP |
630 |
2.5 |
180 |
||
BL-Q120A-41UG |
BL-Q120B-41UG |
Ultra Green |
AlGaInP |
574 |
2.5 |
180 |
||
BL-Q120A-41UR |
BL-Q120B-41UR |
Ultra Red |
GaAlAs/DDH |
660 |
2.2 |
200 |
||
BL-Q120A-41UY |
BL-Q120B-41UY |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
180 |
||
BL-Q120A-41W |
BL-Q120B-41W |
Ultra White |
InGaN |
- |
4.2 |
190 |
||
BL-Q120A-41Y |
BL-Q120B-41Y |
Yellow |
GaAsP/GaP |
585 |
2.5 |
170 |

