DTriple Digit 0.28inch White 7-Segment LED Display (Common Cathode)
Product Overview
Introducing the Triple Digit 0.28inch White 7-Segment LED Display
(Common Cathode)—a compact, high-reliability numeric display
engineered for versatility across audio equipment, home appliances,
and industrial indicators. With its 0.28inch digit size (ideal for
space-constrained devices), bright white illumination, and robust
common cathode configuration, this display delivers consistent
readability even in bright ambient light—while maintaining low
power consumption and an ultra-wide operating temperature range
(-45°C to 80°C).
Compliant with RoHS/REACH standards and built to industrial
specifications, it ensures stable performance in extreme
environments (from cold storage to warm appliance interiors) and
supports long-term use in daily-operated devices. Whether for
temperature readouts, process indicators, or audio equipment
statuses, this 3-digit display balances functionality, durability,
and energy efficiency.
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Key Features
1. Compact & Versatile Design
0.28inch Digit Size: Perfect for small electronics and space-limited panels (e.g.,
compact thermometers, mini audio amplifiers), without sacrificing
readability.
Industrial Standard Form Factor: Aligns with universal PCB layouts, simplifying integration into
existing product designs and automated assembly lines.
Common Cathode Configuration: Works seamlessly with standard driver ICs and microcontrollers
(e.g., Arduino, PIC), reducing circuit design complexity for
engineers.
2. Extreme Environment Reliability
Ultra-Wide Operating Temperature: Functions flawlessly from -45°C to 80°C, making it suitable for
harsh conditions (e.g., outdoor temperature indicators, industrial
freezers, warm appliance interiors).
Stable Performance: Resists voltage fluctuations and environmental
stress, ensuring consistent light output and segment clarity over
time.
Long Lifetime: High-quality LED chips and durable construction minimize
replacement needs, even in 24/7 operation (e.g., process control
monitors).
3. Superior Visibility & Efficiency
Bright White Illumination: High luminous intensity ensures clear readability in bright
ambient light (e.g., living rooms, factory floors) without
additional backlighting.
Even Light Distribution: Luminance is uniformly spread across each segment, eliminating dim
spots or “hot zones” for crisp, professional numeric output.
Low Power & Low Current: Optimized electrical design reduces energy use, extending battery
life for portable devices (e.g., handheld temperature meters) and
lowering operational costs for fixed equipment.
4. Global Compliance & Safety
RoHS/REACH Compliant: Meets international environmental and safety standards,
eliminating regulatory barriers for sales in Europe, North America,
Asia, and beyond.
Non-Toxic Materials: Constructed with eco-friendly components, ensuring safety for both
users and the environment.
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Application Image
Applications
This triple-digit 7-segment LED display is widely suitable for:
Home Electronic Appliances: Compact thermometers, humidifiers, mini ovens, and coffee makers
(for temperature, time, or humidity readouts).
Audio Equipments & Instrument Panels: Portable amplifiers, media players, and mixing boards (for volume
levels, track numbers, or input status).
Industrial & Process Indicators: Temperature controllers, pressure gauges, and factory monitors
(for real-time data in extreme environments).
Numeric Displays: Battery level monitors, countdown timers, and handheld test
devices (for clear, energy-efficient data visualization).
Outdoor/Harsh Environment Devices: Outdoor temperature sensors, cold storage indicators, and
automotive auxiliary displays (for reliable operation in -45°C to
80°C).
Absolute Maximum Ratings(Ta=25ºC)
| Parameter | Symbol | Ratings | Unit |
| Forward Current(per dice) | Ipm | 20 | mA |
| Reverse Voltage(per dice) | Vr | 5 | V |
| Power Dissipation(per dice) | Pm | 80 | mW |
| Operating Temperature Range | Topr | -40~+85 | ºC |
| Storage Temperature Range | Tstg | -40~+85 | ºC |
| Solder Temperature(3 sec) | Th | 260 | ºC |
Code:R-Ultra bright white
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage(Per dice) | Vf | If=10mA | 2.8 | | 3.2 | V |
| Reverse Voltage(Per dice) | Vr | Ir=10uA | 5 | | | V |
| Luminous Intensty(Per dice) | Iv | If=10mA | 100 | | 140 | mcd |
| Spectrum With Of Half Value | λ | If=10mA | | 20 | | nm |
| Color Temperature | | If=10mA | 6000 | | 6500 | K |
| LED working lifetime 100,000hrs Absolute Maximum Rating at Ta=25ºC |
Why Choose This 3-Digit LED Display?
Extreme Temperature Tolerance: Operates from -45°C to 80°C—ideal for devices used in cold, hot,
or variable environments where standard displays fail.
Space-Saving Design: 0.28inch digits fit into small products without compromising
readability, expanding design possibilities for compact
electronics.
Energy Efficiency: Low power and current draw reduce battery replacement frequency
for portable devices and lower energy costs for fixed equipment.
Global Market Readiness: RoHS/REACH compliance ensures seamless distribution to
international markets, avoiding regulatory delays.
Long-Term Reliability: Industrial-grade construction and stable performance minimize
maintenance needs, enhancing end-user trust in your product.
