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.
In the technological tapestry of digital displays, the SMD seven segment display 0.4 inch 2 digit stands as a beacon of innovation, combining sleek design with functionality and energy efficiency. This article is tailored for electronics manufacturers, engineers, purchasers, and administrators who are keen to explore the cutting-edge features, diverse applications, significant benefits, and real-world impacts of utilizing SMD seven segment displays in their projects.
The Cutting Edge of Digital Displays: SMD Seven Segment Display
At the heart of many electronic devices lies the smd seven segment display, a component that elegantly presents numerical data with clarity and precision. Among its variants, the 0.4 inch 2 digit model has garnered attention for its optimal balance between size and visibility, making it an essential element in a wide array of electronic devices.
Unpacking the Features
The SMD seven segment display 0.4 inch 2 digit model is renowned for its:
- High Brightness and Contrast: Ensuring readability in various lighting conditions, from the dimly lit interiors of homes to the bright lights of outdoor settings.
- Energy Efficiency: Drawing minimal power, which is crucial for battery-operated devices, leading to longer operational times.
- Compact Design: Allowing for integration into small-scale electronic devices without compromising functionality.
- Durability: Built to last, these displays can withstand the rigors of both consumer and industrial use.
Wide-Ranging Applications
This display technology is not confined to a single use case but spans across:
- Consumer Electronics: Including digital clocks, calculators, and household appliances.
- Industrial Equipment: Such as control panels, testing equipment, and industrial meters.
- Medical Devices: Offering clear readouts for critical monitoring equipment.
The Advantages Unveiled
Switching to or incorporating the 0.4 inch 2 digit smd seven segment display in electronic designs brings forth a multitude of benefits:
- Aesthetic Appeal: Enhances the product design, offering a modern look and feel.
- User Experience: Improves the interface with clear, easy-to-read numbers, making device interaction intuitive.
- Cost Efficiency: Reduces production costs due to the simplicity of integrating SMD components.
Case Studies: Real-World Success
A notable application involved a leading electronics manufacturer integrating this display into their new line of portable medical devices. The result was a 25% increase in battery life and a 40% improvement in device readability, significantly enhancing patient and medical staff satisfaction.
User Testimonials: Voices from the Field
Electronics engineers and product developers have praised the smd seven segment display 0.4 inch 2 digit for its versatility and performance. “The adoption of this display technology was a game-changer for our product line, offering an unmatched blend of durability, efficiency, and aesthetic appeal,” an R&D manager noted.
Conclusion: Illuminating the Path Forward
The SMD seven segment display 0.4 inch 2 digit represents more than just an advancement in display technology; it’s a pivotal shift towards creating more efficient, user-friendly, and cost-effective electronic devices. By embracing this technology, manufacturers and designers are not just keeping pace with current trends but setting new benchmarks in electronic design and functionality.

Features
- 0.40 Inch Digit Height (10.16mm): Compact yet clear for numerical display, suitable for devices where space is limited.
- Dimensions (Width x Height): Measuring 18.5 x 15.00 mm, it is designed for small-scale applications.
- Single Decimal Point: Enhances functionality for displaying decimal numbers.
- Single LED Chip Per Segment: Ensures uniform brightness and consistency in character appearance.
- Common Anode or Common Cathode Selection: Offers flexibility for different circuit designs.
- Low Current Operation: Energy-efficient design, ideal for battery-powered or energy-saving applications.
- Excellent Character Appearance: Sharp and clear display for easy readability.
- High Light Output: Bright display, visible even in well-lit conditions.
- Easy Mounting on PC Boards: Simplifies the integration process onto printed circuit boards.
- Multicolor Availability: Comes in various colors, suitable for diverse design needs.
- Categorized for Luminous Intensity: Ensures uniform brightness across units.
- Technically Rugged: Durable and reliable for various environmental conditions.
- Standard Design: Gray surface with white segments, offering a classic and clear appearance.
- RoHS Compliance: Manufactured following environmental and health safety standards.
Applications
- Electronic Meters: Ideal for utility meters such as gas, water, or electricity meters, displaying readings.
- Digital Clocks and Timers: Used in timekeeping devices like digital clocks, stopwatches, and countdown timers.
- Consumer Electronics: Incorporated in household appliances like microwave ovens, thermostats, and audio equipment for displaying settings or values.
- Medical Equipment: Utilized in medical devices for displaying measurements, such as blood pressure monitors or patient monitors.
- Automotive Dashboards: Suitable for displaying information like temperature, fuel level, or other indicators in vehicles.
- Control Panels: Used in industrial machinery, HVAC systems, and control panels for displaying operational data.
- Telecommunication Equipment: Incorporated in devices like network routers or signal strength indicators for displaying numerical data.
- Fitness Equipment: Applied in treadmills, exercise bikes, and other fitness machines to show speed, distance, or calorie count.
- Point of Sale Terminals: Used in retail for displaying prices, quantities, or totals in cash registers or payment terminals.
Part No. (Cathode) | Part No. (Anode) | Emitting Color | Material | Peak Wavelength (nm) | Voltage typ.(v) | Voltage max. (v) | Luminous min | Luminous typ |
|---|---|---|---|---|---|---|---|---|
BL-DS40A-21B-XX |
BL-DS40B-21B-XX |
Ultra Blue |
InGaN |
470 |
4.2 |
70 |
||
BL-DS40A-21D-XX |
BL-DS40B-21D-XX |
Super Red |
GaAlAs/GaAs,DH |
660 |
2.2 |
110 |
||
BL-DS40A-21E-XX |
BL-DS40B-21E-XX |
Red |
GaAsP/GaP |
635 |
2.5 |
55 |
||
BL-DS40A-21G-XX |
BL-DS40B-21G-XX |
Green |
GaP/GaP |
570 |
2.5 |
40 |
||
BL-DS40A-21PG-XX |
BL-DS40B-21PG-XX |
Ultra Pure Green |
InGaN |
525 |
4.5 |
185 |
||
BL-DS40A-21S-XX |
BL-DS40B-21S-XX |
Hi Red |
GaAlAs/GaAs,SH |
660 |
2.2 |
90 |
||
BL-DS40A-21UE-XX |
BL-DS40B-21UE-XX |
Ultra Red |
AlGaInP |
630 |
2.5 |
115 |
||
BL-DS40A-21UG-XX |
BL-DS40B-21UG-XX |
Ultra Green |
AlGaInP |
574 |
2.5 |
100 |
||
BL-DS40A-21UHR-XX |
BL-DS40B-21UHR-XX |
Ultra Red |
AlGaInP |
645 |
2.5 |
150 |
||
BL-DS40A-21UR-XX |
BL-DS40B-21UR-XX |
Ultra Red |
GaAlAs/GaAs,DDH |
660 |
2.2 |
150 |
||
BL-DS40A-21UY-XX |
BL-DS40B-21UY-XX |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
115 |
||
BL-DS40A-21W-XX |
BL-DS40B-21W-XX |
Ultra White |
InGaN |
- |
4.2 |
70 |
||
BL-DS40A-21Y-XX |
BL-DS40B-21Y-XX |
Yellow |
GaAsP/GaP |
585 |
2.5 |
60 |
||
BL-DS40A-21YO-XX |
BL-DS40B-21YO-XX |
Ultra Amber |
AlGaInP |
619 |
2.5 |
115 |



