| 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.
