| Specification | Details |
| Display Type | Triple-digit (3-digit) 7-segment LED numeric display |
| Character Height | 0.4 inches (10.16mm) – balanced for compactness and readability (1-2m viewing) |
| Outer Dimensions | 30.1×16×7mm (slim 7mm depth fits space-constrained enclosures) |
| Polarity | Common Cathode |
| Surface/Epoxy Design | Yellow epoxy + black surface (anti-glare, high contrast, scratch-resistant) |
| Emitting Color (Standard) | Super bright red (vibrant, eye-catching for alerts/visibility) |
| Additional Emitting Colors | Blue, green, white, amber, orange, yellow |
| Forward Voltage | Optimized for high luminous intensity (ensures brightness without excess power) |
| Forward Current | Extremely low (minimizes energy draw and heat) |
| Luminosity | Evenly distributed across all segments (no hotspots or dim edges) |
| Form Factor | Industrial standard size (compatible with off-the-shelf PCBs/enclosures) |
| Compliance | RoHS/REACH compliant (free from restricted substances/hazardous chemicals) |
Core Product Features
1. Super Bright Red Visibility & Contrast
Super bright red emission: The red is highly visible in both dim (audio equipment racks, basement instrument panels) and bright (kitchen countertops, retail displays) environments—without the harsh glare of white LEDs. Its high luminous intensity ensures digits (0-9, plus decimal points for precision) stand out at a glance, making it ideal for:
Audio equipment: Volume levels or channel gains viewed in dimly lit studios.
Home appliances: Microwave timers or refrigerator temperatures in sunlit kitchens.
Yellow epoxy + black surface: The bold contrast eliminates ambient light reflection and enhances digit clarity—critical for precision indicators like temperature monitors or process gauges , where misreading a value could lead to errors. The yellow epoxy also adds durability, resisting scratches from daily use .
2. Energy Efficiency & Thermal Stability
Low power consumption + extremely low current: Minimizes energy draw, offering dual benefits:
Battery-powered devices: Portable thermometers, handheld humidity meters, or wireless process sensors (extends battery life by 30-40% vs. higher-current displays).
24/7 operated equipment: Audio amplifiers, home appliance control panels (e.g., electric water heaters), or industrial process monitors (reduces long-term electricity costs and heat generation).
Optimized forward voltage: Delivers maximum luminous intensity without wasting power—ensures bright, consistent digits without straining circuits or shortening LED lifespan.
3. Industrial-Grade Reliability & Integration
Evenly distributed luminosity: Light spreads uniformly across all 3 digits and segments, eliminating "dark spots" that distort numbers. This consistency guarantees reliable readability, avoiding costly mistakes in industrial or consumer use cases.
Industrial standard size: 30.1×16×7mm dimensions fit standard PCBs, sockets, and enclosures—no custom machining needed. Simplifies integration into existing designs (upgrading old audio equipment or retrofitting home appliance panels) and speeds up production for manufacturers.
Stable performance & long lifespan: Built with high-quality LED chips and robust encapsulation to resist voltage fluctuations (common in home/industrial power systems) and mechanical vibration (in factory equipment or portable tools). Supports 50,000+ hours of continuous operation, reducing maintenance downtime.
4. Versatility & Regulatory Compliance
Multi-color flexibility: Beyond super bright red, 6 additional colors cater to functional and aesthetic needs:
Blue/white: For modern smart home devices .
Amber/orange: For retro-style audio gear or kitchen appliances.
Green: For "normal operation" indicators (e.g., process monitors showing safe levels).
RoHS/REACH compliant: Free from lead, mercury, cadmium and hazardous chemicals , meeting global regulations for consumer electronics and industrial equipment. Ensures eligibility for export to key markets like the EU, North America, and Asia, aligning with eco-friendly product initiatives.
Target Applications
Optimized for triple-digit numeric display needs across consumer, audio, and industrial sectors:
Audio Equipment & Instrument Panels:
Amplifiers (volume levels, e.g., "45"), mixers (channel gains, e.g., "-3dB"), or equalizers (frequency settings, e.g., "1kHz").
Industrial instrument panels (pressure readings, e.g., "100kPa", or flow rates, e.g., "5L/min").
Home Electronic Appliances:
Microwaves, induction cooktops, or small refrigerators.
Smart home devices (humidity monitors, e.g., "55% RH", or battery chargers, e.g., "80%").
Numeric Displays:
Retail price tags, queue number indicators , or digital signage.
Process & Environmental Indicators:
Industrial temperature monitors, warehouse humidity sensors, or production counters .
Application Scenario Image
Why Choose This Triple-Digit 7-Segment Display?
This display solves the "compactness vs. visibility" challenge for small devices:
Its super bright red emission and high-contrast design ensure readability in any lighting, from dim studios to bright kitchens—critical for user-friendly operation.Extremely low current and long lifespan reduce operational costs for end-users, while industrial standard sizing simplifies integration for manufacturers.Multi-color options and regulatory compliance make it adaptable to diverse markets and use cases, from audio gear to industrial monitors.For brands building audio equipment, home appliances, or precision indicators—where space, visibility, and efficiency matter—this 0.4-inch super bright red triple-digit 7-segment LED display delivers consistent performance and practical value.
