





Ultra Bright White 0.56-Inch 4-Digit 7-Segment Common Cathode LED Display for Instrument Panels
Product Overview
Introducing the Ultra Bright White 0.56-Inch 4-Digit 7-Segment Common Cathode LED Display—a high-performance numeric solution engineered specifically for instrument panels, home appliances, and precision digital indicators. Designed to deliver clear, reliable readouts of critical data (e.g., "245.6" for pressure, "-10.0" for sub-zero temperature), this display combines a 0.56-inch (14.2mm) character height for easy visibility, ultra bright white illumination, and a space-efficient 50.3×19×8mm form factor to fit seamlessly into dense instrument setups.
With yellow segments on a black surface (enhancing contrast), common cathode polarity (simplifying integration with control boards), and exceptional luminous intensity (120-140mcd), it ensures readability even in bright industrial environments or dim indoor spaces. Its low power consumption, long lifespan, and RoHS compliance make it ideal for 24/7 operation—while its versatility extends to home appliances and set-top boxes, making it a cost-effective choice for diverse numeric display needs.
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Key Features
1. Instrument Panel-Optimized Design
4-Digit Layout: Supports extended numeric ranges (0000–9999) and decimal values, perfect for instrument metrics like voltage ("12.34V"), temperature ("25.5°C"), or humidity ("60.0% RH")—eliminating the need for multiple smaller displays.
0.56-Inch (14.2mm) Character Height: Balances readability (from 1–2 meters, typical instrument viewing distance) and space efficiency. Digits are large enough to avoid eye strain during prolonged monitoring but compact enough for dense panel layouts (e.g., alongside buttons, sensors, or warning lights).
Yellow Segments on Black Surface: Creates sharp contrast with ultra bright white light, ensuring digits and decimal points stand out against cluttered instrument panels—critical for quick, accurate data interpretation in high-pressure industrial settings.
2. Superior Visibility & Performance
Ultra Bright White Illumination: 120-140mcd luminous intensity and 0.29-0.31 (X/Y) chromaticity (pure white light) cut through ambient glare (e.g., factory floor lighting, lab overheads) while remaining easy on the eyes. Ideal for both indoor and semi-outdoor instrument use.
Stable Operation: Engineered to withstand voltage fluctuations (common in industrial power supplies) and temperature variations (0°C–50°C, typical operating range), maintaining consistent brightness and segment uniformity—no flickering or dimming during critical measurements.
Extremely Low Current: Optimized forward current (10–15mA/LED, corrected for clarity) and forward voltage (2.8-3.3V/LED) minimize power consumption, extending battery life for portable instruments and reducing electricity costs for fixed panels.
3. Easy Integration & Durability
Common Cathode Polarity: Compatible with standard instrument driver ICs (e.g., TM1637, MAX7219) commonly used in industrial equipment, home appliances, and set-top boxes—simplifying circuit design and accelerating product development.
Easy Assembly: Designed for hassle-free PCB mounting, supporting automated production lines for high-volume manufacturing. No specialized tools or custom brackets are required, reducing assembly time and labor costs.
Long Lifespan: High-quality LED chips ensure a typical lifespan of 50,000+ hours—matching the 5–10 year service life of most instruments and home appliances, minimizing maintenance and replacement expenses.
4. Compliance & Versatility
RoHS Compliant: Meets international environmental and safety standards, ensuring compatibility with global markets (Europe, North America, Asia)—no regulatory barriers for export.
Multi-Scenario Adaptability: Beyond instrument panels, it works seamlessly in home appliances (microwave timers, AC temperature displays), set-top boxes (channel numbers, signal strength), and digital indicators (battery levels, countdown timers).
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| Category | Parameter | Specification |
| Basic Design | Display Type | 4-Digit 7-Segment LED Display |
| Polarity | Common Cathode | |
| Character Height | 0.56 inches (14.2mm) | |
| Outer Dimensions (L×W×H) | 50.3 × 19 × 8mm | |
| Segment/Surface Color | Yellow segments on Black Surface | |
| Optical Performance | Emitting Color | Ultra Bright White |
| Chromaticity Coordinates (X/Y) | X: 0.29-0.31; Y: 0.29-0.31 | |
| Luminous Intensity | 120-140 mcd | |
| Electrical Parameters | Forward Voltage (VF) | 2.8-3.3V per LED |
| Recommended Forward Current | 10-15mA per LED (corrected for accuracy) | |
| Power Consumption | Low (extremely low current draw) | |
| Quality & Compliance | Core Advantages | High luminous intensity, stable performance, long lifespan, IC compatible |
| Compliance | RoHS Compliant |
Applications
This 4-digit LED display is versatile across multiple scenarios, with key uses including:
Instrument Panels: Industrial pressure gauges, flow meters, voltage monitors, and process controllers (for displaying precise operational metrics).
Home Appliances: Microwaves (timer values), air conditioners (temperature settings), electric ovens (heat levels), and rice cookers (cooking progress).
Set-Top Boxes: Cable/satellite boxes (channel numbers, signal strength, playback time) and streaming devices (volume levels, input status).
Digital Indicators: Portable thermometers, humidity monitors, battery chargers (charge percentages), and fitness equipment (workout metrics).
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Why Choose This Display for Instrument Panels?
Instrument-Grade Clarity: High luminous intensity and contrast ensure quick, accurate reading of critical metrics—reducing errors in industrial settings.
Space-Efficient Fit: 50.3×19×8mm size fits into dense instrument panels without compromising on digit size or readability.
24/7 Reliability: Stable performance and long lifespan match the demands of continuous instrument operation, minimizing downtime.
Easy Manufacturing: Common cathode polarity and IC compatibility simplify integration into production lines, cutting development time.
Global Compliance: RoHS certification ensures adherence to international standards, simplifying export to global markets.





