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Ultra bright white 0.28" 3 digit 7 segment led display common anode for instrument panel
Product Overview
Introducing the Ultra Bright White 0.28-Inch 3-Digit 7-Segment Common Anode LED Display—a miniaturized, high-performance numeric solution engineered for space-constrained devices: instrument panels, equipment testers, small home appliances, and temperature controllers. Designed to balance tiny size, clear visibility, and energy efficiency, this display excels at showing concise metrics: compact thermostat temps, equipment test readings or small appliance statuses.
Its 7.00mm character height ensures readability from 0.5–1.5 meters (typical distance for handheld or small-mounted devices), while the slim 22.5×10×6.1mm form factor fits into dense PCB layouts or tiny appliance panels—no need to sacrifice functionality for size. The yellow segments on a black face boost contrast with ultra bright white light (100-120mcd), avoiding glare in dim spaces and resisting washout in bright environments.
With common anode polarity, low power consumption (5-10mA/LED), and RoHS compliance, this display combines durability, space efficiency, and eco-friendliness—ideal for 24/7 operation in compact electronic devices.
Product Image
Key Features (Compact Device-Optimized)
1. Ultra-Compact Design for Space-Limited Use
Miniature Dimensions (22.5×10×6.1mm): One of the slimmest 3-digit 7-segment displays available, fitting into dense instrument panels or tiny home appliances. No need to resize PCBs or redesign device enclosures.
7.00mm (0.28-Inch) Character Height: Balances small size with readability—large enough to distinguish digits for precision metrics but small enough for handheld equipment.
Dual Mounting Options: Easy to mount on PC boards (for automated mass production) or sockets (for manual replacement/maintenance)—flexible for both high-volume devices and custom equipment builds.
2. Superior Visibility in Compact Scenarios
Ultra Bright White Illumination (100-120mcd): High luminous intensity ensures clarity in challenging lighting—bright enough for well-lit workbenches and visible in dim enclosures. The neutral white light avoids color distortion, making decimal points sharp.
Yellow Segments on Black Face: The yellow segment base enhances contrast with the black background, eliminating "fuzzy" edges on small digits—critical for accurate reading of fine values that could impact device performance.
Continuous Uniform Segments: No "dead spots" or uneven brightness across segments—laboratory-tested to ensure<2% intensity variation, so every bar of digits is consistent, avoiding misinterpretation.
3. Energy Efficiency & Reliable Performance
Low Power Consumption (5-10mA/LED): Extremely low current draw minimizes energy use, ideal for battery-powered compact devices — extends battery life by 30% compared to higher-current displays, reducing user hassle of frequent charging.
Stable Operation in Variable Environments: Withstands temperature fluctuations and minor vibrations —maintains consistent brightness, no flickering during value updates.
Long Lifespan (50,000+ Hours): High-quality white LED chips match the 5–8 year service life of most compact devices, reducing maintenance downtime and replacement costs.
4. Versatility & Compliance
Multi-Color Options: Beyond ultra bright white, available in red (for alerts), blue (modern aesthetics), yellow green, pure green, amber, and orange—flexible for functional cues or brand-specific device designs.
Common Anode Polarity: Compatible with standard driver ICs widely used in compact devices—simplifies circuit design, no need for custom polarity adapters, and supports seamless integration with existing firmware.
RoHS Compliant: Free from lead, mercury, and harmful substances—safe for consumer devices and industrial equipment, meeting global safety standards for export to EU, North America, and Asia.
| Category | Parameter | Specification (Compact Device-Optimized) |
| Basic Design | Display Type | 3-Digit 7-Segment LED Display |
| Polarity | Common Anode | |
| Character Height | 0.28 inches (7.00mm) | |
| Outer Dimensions (L×W×H) | 22.5 × 10 × 6.1mm | |
| Segment/Surface Finish | Yellow segments on Black Face | |
| Optical Performance | Emitting Color | Primary: Ultra Bright White; Optional: Red/blue/yellow green/pure green/amber/orange |
| Luminous Intensity | 100-120 mcd | |
| Color Coordinate (X/Y) | 0.29-0.31 (neutral white) | |
| Electrical Parameters | Forward Voltage (VF) | 2.8-3.2V per LED (white); 1.8-2.2V (red/amber/orange); 2.8-3.2V (blue/green) |
| Forward Current | 5-10mA per LED | |
| Power Consumption | Low (extremely low current draw) | |
| Quality & Compliance | Core Advantages | Uniform segments, stable performance, easy mounting, long lifespan |
| Compliance | RoHS Compliant |
Applications
This display is tailored for space-constrained electronic devices, including:
Instrument Panels: Compact industrial testers , medical devices , or automotive dash accessories.
Equipment Test Devices: Handheld multimeters , power supply monitors or sensor calibrators.
Small Home Appliances: Mini humidifiers, portable air purifiers or travel-sized thermometers.
Temperature Controllers: Compact HVAC panels, fridge mini-monitors or incubator controllers.
Why Choose This Display for Compact Devices?
Space Efficiency: Ultra-small dimensions fit into dense PCBs or tiny enclosures—enables multi-display setups without sacrificing functionality.
Precision Readability: Yellow segments on black face + uniform brightness ensure accurate digit recognition for fine metrics that can't be misread.
Battery-Friendly: Low current use extends life for portable devices—critical for users relying on handheld testers or travel appliances.
Easy Integration: Common anode polarity + dual mounting options simplify production and maintenance—works with standard ICs and PCBs.
Global Compliance: RoHS certification ensures use in international markets, aligning with safety standards for consumer and industrial compact devices.
Product Parameters
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 seconds) | Th | 260 | ºC |
Code:Yellow Green- J
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 1.8 | 2.4 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 30 | 40 | mcd | |
| Spectrum With Of Half Value | △λ | If=10mA | 20 | nm | ||
| Wavelength | Dλ | If=10mA | 569 | 574 | nm |
Code:Amber/Yellow -Y
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 1.8 | 2.5 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 60 | 80 | mcd | |
| Spectrum With Of Half Value | △λ | If=10mA | 20 | nm | ||
| Wavelength | Dλ | If=10mA | 585 | 595 | nm |
Code:Orange -F
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 1.8 | 2.4 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 60 | 80 | mcd | |
| Spectrum With Of Half Value | △λ | If=10mA | 20 | nm | ||
| Wavelength | Dλ | If=10mA | 600 | 605 | nm |
Code:Super Bright Red -R
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 1.8 | 2.2 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 50 | 60 | mcd | |
| Spectrum With Of Half Value | △λ | If=10mA | 20 | nm | ||
| Wavelength | Dλ | If=10mA | 630 | 635 | nm |
Code:Ultra Bright Red -UR
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 1.8 | 2.2 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 80 | 100 | mcd | |
| Spectrum With Of Half Value | △λ | If=10mA | 20 | nm | ||
| Wavelength | Dλ | If=10mA | 625 | 635 | nm |
Code:Pure Green -G
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 2.6 | 3.2 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 120 | 180 | mcd | |
| Spectrum With Of Half Value | △λ | If=10mA | 20 | nm | ||
| Wavelength | Dλ | If=10mA | 515 | 525 | nm |
Code:Ultra Bright Blue -BH
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 2.8 | 3.2 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 120 | 140 | mcd | |
| Spectrum With Of Half Value | △λ | If=10mA | 20 | nm | ||
| Wavelength | Dλ | If=10mA | 460 | 465 | nm |
Code:Ultra Bright White -WH
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=10mA | 2.8 | 3.2 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=10mA | 120 | 140 | mcd | |
| LED color Temperature | K | If=10mA | 5500 | 20 | 6800 | K |
Chromaticity Coordinates | X/Y | If=10mA | 0.29,0.32 | 0.30,0.33 | nm |
SHENZHEN GUANGZHIBAO TECHNOLOGY CO., LTD. (BRAND: LIGHT-BO) stablished in 2006 , A company that integrates R & D, manufacturing and sales of optoelectronics LED Displays . ISO 9001 2015 Quality Management Systems certified company . With more than 15 years OEM and ODM experience .
LIGHTBO has been committed to provide high quality and low cost customized solutions to help customers reduce cost and enhance competitiveness.
Products Applications
7 Segment LED Display, Customized LED Display, Numeric LED Display, Dot matrix LED Display, widely used for home appliances,tempearture indicators, humidity indicators, refrigerator controller,thernostats indicator,heating and cooling control and so on
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FAQ
FAQ(Frequently Asked Questions)
Q1 Are you trading company or manufacturer
A: We are original manufacturer with more than 20 years experience in optoelectronic LED displays .
Q2 What is your main products
A: Our main products include 7 Segment LED display, SMD LED Display,Dot matrix LED Display, Arrow LED display, Custom Design LED Display ,LED light bar,Through hole led, SMD LEDs,LED Backlights, and so on .
Q3 What is your MOQ
A: Our MOQ is 1000 pcs , We can also accept sample orders and small orders with quantity less than our MOQ .
Q4 Before placing order, Can I get some samples for test
A: Yes. We can provide 5-10 free samples for your testing, but the freight cost will be borne by the customer.
Q5 How long is your delivery time
A: Delivery time:About 10-20 days; According to order quantity and raw materials. If you have urgent order,and we have raw materials in stock,we can adjust our production plan to make it ready within 7-10 days .
Q6 What is your terms of payment
A: We accept bank transfer,T/T,Western Union and Paypal with small amount. Detailes of payment methods can be negotiatble.
Q7 Can you quote me FOB prices
A: Yes. We can quote you prices based on incoterms EXW, FOB, CIF,DDP.
Q8 How can I get your catalogue and price list
A: Yes . Please let us know your email address or contact us from website directly for our catalogue and price list .
Q9 Can I negotiate the prices
A: Yes, we may consider discounts for bulk orders.
Q10 How much will the shipping charges be
A: It depends on the size of your shipment and the method of shipping.We will offer the charge to you as you requested.
Q11 Can you do custom design products
A: Yes , OEM&ODM service are available .We can customize the sizes,led color and functional icons according to your requirements.
Q12 If I send my design , can you make it for myself only ,and will not show it to any one else
A: Yes , we will not show it or sell to others without your authorization.
Q13 What will be the samples lead time for customzied products
A: Samples lead time will be about 20-25 working days after receiving mold cost and mold drawing approval from customers .
Q14 What is the shipping methods
A:We usually ship the goods by DHL, FEDEX,UPS,EMS,BY AIR,BY SEA etc, also you can choose the other way that best for you.
Q15 How do you ensure the quality of your products
A: we are ISO 9001 QMS ceritified manufacturers with more than 20 years experience ,We conduct twice 100% percent test for all of our products before shipment .
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