3-Digit 7-Segment LED Display, 0.67-Inch (17mm), Dual-Color (Ultra Bright Red/Pure Green), Common Cathode for Home Appliances
Product Overview
This 3-digit 7-segment LED display is engineered for clear, reliable numeric readouts in home electronic appliances—featuring a 0.67-inch (17mm) character height and compact outer dimensions (47×22×8mm) that balance visibility and space efficiency. Configured as common cathode for seamless integration into standard appliance circuits, it offers two high-performance primary color options:
Ultra Bright Red: 620-625nm wavelength, 80-100mcd intensity, 1.8-2.3V forward voltage (ideal for high-contrast alerts or warm-toned appliances).
Pure Green: 515-525nm wavelength, 120-140mcd intensity, 2.8-3.2V forward voltage (perfect for modern aesthetics or "normal status" indicators).
Both variants feature a yellow segments + black surface with protective film design—maximizing contrast to eliminate glare, while the film safeguards against scratches during assembly and use. With low power consumption (5-10mA/LED), long lifespan, and RoHS certification, it supports 5 additional emission colors (blue, white, amber, yellow, orange) and multi-color customization—making it a versatile solution for air conditioners, refrigerators, and heating/cooling controls.
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Key Specifications (Dual-Color Comparison)
| Specification | Ultra Bright Red | Pure Green |
| Display Type | 3-digit 7-segment LED display | 3-digit 7-segment LED display |
| Character Height | 17mm (0.67 inch) | 17mm (0.67 inch) |
| Outer Dimensions | 47×22×8mm | 47×22×8mm |
| Polarity | Common Cathode | Common Cathode |
| Surface Design | Yellow segments + black surface (with protective film) | Same as above |
| Emitting Color | Ultra bright red | Pure green |
| Wavelength | 620-625nm | 515-525nm |
| Luminous Intensity | 80-100mcd | 120-140mcd (higher brightness for dim spaces) |
| Forward Voltage | 1.8-2.3V/LED (lower power draw) | 2.8-3.2V/LED |
| Forward Current | 5-10mA/LED (energy-efficient) | 5-10mA/LED |
| Additional Color Options | Red, blue, green, white, amber, yellow, orange; multi-color | Same as above |
| Certificate | RoHS Compliant | RoHS Compliant |
Core Product Features
1. Dual-Color Versatility for Appliance Needs
Ultra Bright Red (620-625nm):
Warm, high-contrast emission cuts through kitchen/living room ambient light—ideal for air conditioner temperature alerts (e.g., "30°C" for overheating) or refrigerator door-open warnings.
Lower forward voltage (1.8-2.3V) minimizes energy usage, perfect for 24/7 operated appliances like refrigerators.
Pure Green (515-525nm):
Vibrant, modern glow suits "normal status" readouts—e.g., air conditioner set temperature ("24°C") or heating control "ON" mode.
Higher luminous intensity (120-140mcd) ensures visibility in dim spaces (e.g., basements with cooling units).
2. High Contrast & Durable Design
Yellow Segments + Black Surface: The bold contrast eliminates glare from overhead lights or sunlight, ensuring digits (0-9) remain sharp—critical for reading precise values like refrigerator temperature ("5°C") or heating timer settings ("02:30").
Protective Film: Shields the black surface from scratches during PCB assembly or appliance maintenance, preserving aesthetics and readability over time.
3. Efficient & Reliable Performance
Low Power Consumption: 5-10mA/LED forward current reduces energy draw, aligning with eco-friendly appliance standards (e.g., ENERGY STAR) and lowering long-term operational costs for users.
Stable Performance & Long Lifespan: Built with high-quality LED chips and durable epoxy to resist voltage fluctuations and environmental factors (e.g., humidity in kitchens, temperature changes in refrigerators). Ensures consistent brightness for 50,000+ hours.
IC Compatibility: Works seamlessly with standard display driver ICs (e.g., 74HC595, TM1638) common in home appliance circuits—eliminating the need for custom adapters and simplifying manufacturing.
4. Easy Integration & Compliance
Compact 47×22×8mm Profile: Fits into slim appliance control panels (e.g., wall-mounted air conditioners, under-counter refrigerators) without compromising character size.
RoHS Certification: Free from restricted substances, ensuring compliance with global regulations (EU CE, US FCC) for home electronics—no barriers to exporting to key markets.
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Applications
Tailored for home electronic appliances requiring clear 3-digit numeric displays:
Air Conditioner Control: Showing set temperature (e.g., "26°C"), room temperature (e.g., "23°C"), or fan speed levels (e.g., "03").
Refrigerator Indicators/Control: Displaying internal temperature (e.g., "5°C" for fridge, "-18°C" for freezer) or door-open alerts (e.g., "OPEN").
Cooling/Heating Control: Showing thermostat settings (e.g., "22°C"), timer durations (e.g., "120" for 2 hours), or mode codes (e.g., "01" for cooling, "02" for heating).
Other Home Appliances: Microwaves (timers, e.g., "05:00"), electric heaters (power levels, e.g., "800W"), or dehumidifiers (humidity levels, e.g., "50%").
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Why Choose This 3-Digit LED Display?
This display stands out for its dual-color flexibility and appliance-focused design:
Ultra bright red/pure green options cater to both alert and normal-status use cases, while additional colors support brand customization.The yellow segments + black surface design ensures readability in any home environment, and the protective film adds durability.Low power consumption, IC compatibility, and RoHS compliance make it a cost-effective, globally viable solution for appliance manufacturers.
For brands building air conditioners, refrigerators, or heating controls—where visibility, reliability, and space efficiency matter—this 3-digit 7-segment display delivers consistent performance and user-centric value.
Product Tags:
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3-Digit 7-Segment LED Display, 0.67-Inch (17mm), Dual-Color (Ultra Bright Red/Pure Green), Common Cathode for Home Images
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