Payment Terms | T/T,Western Union |
Supply Ability | 50000 PCS/Day |
Delivery Time | 15-20 days |
Packaging Details | EPE+cartons |
Emitting color | red, blue, green, white, amber, orange and yellow |
Shipping | By DHL, TNT, UPS, EMS, etc. |
Application | Coffee Machine |
Outer dimensions | 22.5 x 10 x 6.1mm |
Character height | 0.28inch |
Face Colour | Yellow Segment Black Face |
Brand Name | LIGHT-BO |
Model Number | LB30281DWH3A-D |
Certification | ISO9001&RoHS |
Place of Origin | Shenzhen, China |
View Detail Information
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Product Specification
Payment Terms | T/T,Western Union | Supply Ability | 50000 PCS/Day |
Delivery Time | 15-20 days | Packaging Details | EPE+cartons |
Emitting color | red, blue, green, white, amber, orange and yellow | Shipping | By DHL, TNT, UPS, EMS, etc. |
Application | Coffee Machine | Outer dimensions | 22.5 x 10 x 6.1mm |
Character height | 0.28inch | Face Colour | Yellow Segment Black Face |
Brand Name | LIGHT-BO | Model Number | LB30281DWH3A-D |
Certification | ISO9001&RoHS | Place of Origin | Shenzhen, China |
High Light | Coffee Machine 7 Segment LED Display ,0.28inch 7 Segment LED Display ,Triple Digit 7 Segment LED Display |
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.
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
10million-12million
Employee Number:
150~200
Ecer Certification:
Verified Supplier
Shenzhen Guangzhibao (Light-Bo) Technology Co. Ltd is specialized in LED products, including LED 7 segment numeric displays, alphanumeric LED displays,dot-matrix LED Displays, SMD LEDs, LED lamps,LCD backlights,LED light bar, bar gragh arrays and LED direction indicator displays and more. We offer ... Shenzhen Guangzhibao (Light-Bo) Technology Co. Ltd is specialized in LED products, including LED 7 segment numeric displays, alphanumeric LED displays,dot-matrix LED Displays, SMD LEDs, LED lamps,LCD backlights,LED light bar, bar gragh arrays and LED direction indicator displays and more. We offer ...
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