Ultra Bright White 14.2mm (0.56-Inch) 4-Digit 7-Segment Common Cathode LED Display for Multimeters

Ultra Bright White 14.2mm (0.56-Inch) 4-Digit 7-Segment Common Cathode LED Display for Multimeters

Product Overview
Introducing the Ultra Bright White 4-Digit 7-Segment Common Cathode LED Display—a precision-focused numeric solution engineered for multimeters, instrument panels, and home appliances. Designed to prioritize high visibility, accurate measurement readouts, and seamless integration, this 4-digit display excels at showing complex metrics: multimeter values (voltage “220.0V”, current “0.80A”, resistance “100.0Ω”), instrument panel data (e.g., “50.0Hz” frequency), or home appliance temps (e.g., “180.0°C”).
Its 14.2mm (0.56-inch) character height ensures exceptional readability from 0.5–2 meters (typical for multimeter operation in workshops or labs), while the 50.3×19.0×8mm form factor fits standard multimeter enclosures—no bulky redesigns required. The white segments on a black surface create sharp contrast with ultra bright white light (120-160mcd), cutting through bright ambient light (e.g., workshop lights, sunlight) without eye strain.
With common cathode polarity, low power consumption (5-10mA/LED), and RoHS compliance, this display balances durability, energy efficiency, and performance—ideal for 24/7 operation in multimeters and precision measurement devices.

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Key Features (Multimeter-Optimized)
1. High Visibility for Precision Measurements
Ultra Bright White Illumination (120-160mcd): Among the brightest in its class, it ensures fine measurement details (e.g., decimal points for “23.50V”) stay clear in harsh lighting—no squinting to distinguish “0.05A” from “0.50A” (a critical difference for circuit safety).
White Segments on Black Surface: High contrast eliminates “washout” and fuzzy edges, making every digit (0-9) and decimal point sharp—avoids measurement errors that could damage components or mislead technicians.
4-Digit Precision: Supports 4-digit readouts (e.g., “1250Ω”, “0.025A”) with decimal point flexibility, matching the accuracy needs of professional multimeters—critical for testing sensitive electronics or low-current circuits.
2. Energy Efficiency & Stable Performance
Low Power Consumption (5-10mA/LED): Extremely low current draw minimizes energy use, extending battery life for portable multimeters—essential for field technicians working away from power outlets.
Optimized Forward Voltage (2.8-3.2V/LED): Compatible with standard 5V/12V power supplies used in multimeters and instrument panels—no need for custom voltage converters, simplifying circuit design.
Stable Operation in Variable Environments: Withstands temperature fluctuations (-10°C to 60°C, typical for workshops/labs) and minor vibrations (e.g., carrying the multimeter in a toolbox)—maintains consistent brightness, no flickering during value updates.
3. Easy Integration & Durability
Common Cathode Polarity: Works with standard multimeter driver ICs (e.g., TM1638, HT1621, MAX7219)—simplifies circuit design for manufacturers and integrates seamlessly with multimeter firmware (e.g., sensor data processing, unit labeling like “V/A/Ω”).
Easy-to-Assemble Design: Compatible with PCB direct-mounting and automated production lines—ensures consistent alignment in multimeter panels, reducing manual labor errors and speeding up manufacturing.
Long Lifespan (50,000+ Hours): High-quality white LEDs match the 8–10 year service life of most multimeters—eliminates downtime from frequent display replacements, lowering maintenance costs for users.
4. Versatility & Compliance
Multi-Color Options: Beyond ultra bright white, available in red (for alert values, e.g., “OVERLOAD”), blue (modern aesthetics), yellow green (eco-aligned designs), pure green, amber, and orange—flexible for functional cues (e.g., red = high current warning) or brand-specific instrument designs.
RoHS Compliant: Free from lead, mercury, and harmful substances—safe for professional and home use, and export to global markets (EU, North America, Asia), meeting electrical equipment safety standards.

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Technical Specifications