Triple Digit 0.28inch White 7 Segment LED Display
A compact, high-reliability numeric display engineered for
versatility across audio equipment, home appliances, and industrial
indicators. With its 0.28inch digit size, 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.
Compliant with RoHS/REACH standards and built to industrial
specifications, it ensures stable performance in extreme
environments 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.
Key Features
Compact & Versatile Design
- 0.28inch Digit Size: Perfect for small electronics and space-limited panels without
sacrificing readability
- Industrial Standard Form Factor: Aligns with universal PCB layouts, simplifying integration into
existing product designs
- Common Cathode Configuration: Works seamlessly with standard driver ICs and microcontrollers
Extreme Environment Reliability
- Ultra-Wide Operating Temperature: Functions flawlessly from -45°C to 80°C for harsh conditions
- Stable Performance: Resists voltage fluctuations and environmental stress
- Long Lifetime: High-quality LED chips and durable construction for 24/7 operation
Superior Visibility & Efficiency
- Bright White Illumination: High luminous intensity ensures clear readability
- Even Light Distribution: Uniform luminance across each segment eliminates dim spots
- Low Power & Low Current: Optimized electrical design reduces energy use
Global Compliance & Safety
- RoHS/REACH Compliant: Meets international environmental and safety standards
- Non-Toxic Materials: Eco-friendly components ensure safety for users and environment
Technical Specifications
| Category | Parameter | Specification |
|---|
| Basic Design | Display Type | Triple Digit 7-Segment LED Display |
| Polarity | Common Cathode |
| Digit Size | 0.28inch |
| Emitting Color | Bright White |
| Environmental Resistance | Operating Temperature | -45°C to 80°C |
| Optical Performance | Luminous Intensity | High |
| Light Distribution | Evenly distributed across each segment |
| Electrical Efficiency | Power Consumption | Low |
| Current Draw | Extremely low |
| Forward Voltage | Optimized for high luminous intensity output |
| Quality & Compliance | Core Advantages | Stable performance, long lifetime, industrial standard size |
| Compliance | RoHS Compliant, REACH Compliant |
Absolute Maximum Ratings (Ta=25°C)
| 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 to +85 | °C |
| Storage Temperature Range | Tstg | -40 to +85 | °C |
| Solder Temperature (≤3 seconds) | Th | 260 | °C |
Electrical & Optical Characteristics
Yellow Green (Code: 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 Intensity | Iv | If=10mA | 30 | | 40 | mcd |
| Spectrum Width Of Half Value | △λ | If=10mA | | 20 | | nm |
| Wavelength | Dλ | If=10mA | 569 | | 574 | nm |
Amber/Yellow (Code: 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 Intensity | Iv | If=10mA | 60 | | 80 | mcd |
| Spectrum Width Of Half Value | △λ | If=10mA | | 20 | | nm |
| Wavelength | Dλ | If=10mA | 585 | | 595 | nm |
Orange (Code: 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 Intensity | Iv | If=10mA | 60 | | 80 | mcd |
| Spectrum Width Of Half Value | △λ | If=10mA | | 20 | | nm |
| Wavelength | Dλ | If=10mA | 600 | | 605 | nm |
Super Bright Red (Code: 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 Intensity | Iv | If=10mA | 50 | | 60 | mcd |
| Spectrum Width Of Half Value | △λ | If=10mA | | 20 | | nm |
| Wavelength | Dλ | If=10mA | 630 | | 635 | nm |
Ultra Bright Red (Code: 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 Intensity | Iv | If=10mA | 80 | | 100 | mcd |
| Spectrum Width Of Half Value | △λ | If=10mA | | 20 | | nm |
| Wavelength | Dλ | If=10mA | 625 | | 635 | nm |
Pure Green (Code: 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 Intensity | Iv | If=10mA | 120 | | 180 | mcd |
| Spectrum Width Of Half Value | △λ | If=10mA | | 20 | | nm |
| Wavelength | Dλ | If=10mA | 515 | | 525 | nm |
Ultra Bright Blue (Code: 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 Intensity | Iv | If=10mA | 120 | | 140 | mcd |
| Spectrum Width Of Half Value | △λ | If=10mA | | 20 | | nm |
| Wavelength | Dλ | If=10mA | 460 | | 465 | nm |
Ultra Bright White (Code: 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 Intensity | 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 |
Manufacturer Information
Shenzhen Guangzhibao Technology Co., Ltd. (Brand: Light-Bo)
established in 2006, is 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.
Light Bo has been committed to provide high quality and low cost
customized solutions to help customers reduce cost and enhance
competitiveness.
Product Applications
7 Segment LED Display, Customized LED Display, Numeric LED Display,
Dot matrix LED Display, widely used for home appliances,
temperature indicators, humidity indicators, refrigerator
controllers, thermostats indicators, heating and cooling control
systems, and more.
Certifications
Office and Factory Overview
Company Exhibitions
Shipping Services
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 more.
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. Details of payment methods can be negotiable.
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 anyone else?
A: Yes, we will not show it or sell to others without your
authorization.
Q13: What will be the samples lead time for customized 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 certified manufacturers with more than 20
years experience. We conduct twice 100% percent test for all of our
products before shipment.
