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Shenzhen Guangzhibao Technology Co., Ltd.

  • China,Shenzhen ,Guangdong
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China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode

  1. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  2. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  3. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  4. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  5. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  6. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode
  7. China Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode

Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode

  1. MOQ: 1000
  2. Price: Negotiate
  3. Get Latest Price
Payment Terms T/T, Western Union,
Supply Ability 20000 PCS/Day
Delivery Time 10-15 days
Packaging Details EPE+CARTON
Package dimensions 38.5**19*8 (mm)
Character Height 12.7mm (0.5inch)
Face Colour Black
Polarity Common Cathode
Operating Temperature -35ºC ~ +85ºC
Forward voltage Pin through hole
Recommanded forward current 5-10mA
Brand Name LIGHT-BO
Model Number LB3050SYW3B-D
Certification ISO9001&RoHS
Place of Origin Shenzhen, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T, Western Union, Supply Ability 20000 PCS/Day
Delivery Time 10-15 days Packaging Details EPE+CARTON
Package dimensions 38.5**19*8 (mm) Character Height 12.7mm (0.5inch)
Face Colour Black Polarity Common Cathode
Operating Temperature -35ºC ~ +85ºC Forward voltage Pin through hole
Recommanded forward current 5-10mA Brand Name LIGHT-BO
Model Number LB3050SYW3B-D Certification ISO9001&RoHS
Place of Origin Shenzhen, China
High Light 3-digit 7-segment LED displaycommon cathode refrigerator LED displayultra bright white 7-segment display

Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode LED Display for Refrigerators

Product Overview
Introducing the Ultra Bright White 3-Digit (3½ Digit) 7-Segment Common Cathode LED Display—a fridge-optimized numeric solution engineered for refrigerator controllers, temperature/humidity indicators, and home appliances. Designed to prioritize wide temperature tolerance, clear readability, and durability, this display excels at showing fridge-specific metrics: positive fridge temperatures (e.g., “5°C”), sub-zero freezer temps (e.g., “-18°C”), or humidity levels (e.g., “60% RH”).
Its 12.7mm (0.5-inch) character height ensures readability from 1–2 meters (typical kitchen distance for fridge checks), while the 38.2×19×8mm form factor fits slim fridge control panels—no bulky redesigns required. The white segments on a black surface (with film) boosts contrast with ultra bright white light, cutting through kitchen glare (e.g., overhead lights, sunlight) without eye strain.
With a wide operating temperature range (-35°C ~ +85°C), common cathode polarity, and RoHS/REACH compliance, this display thrives in fridge environments (from cold freezers to warm kitchens) and delivers reliable performance for 24/7 use.

 

Main Image

Key Features (Refrigerator-Optimized)
1. Wide Temperature Tolerance for Fridge Environments
Extreme Temp Range (-35°C ~ +85°C):
Specifically designed to withstand fridge/freezer cold (-35°C for deep freezers) and kitchen ambient heat (+85°C for warm kitchens)—avoids segment dimming, frost damage, or performance loss that plagues standard displays in extreme temps.
Freezer-Ready Design: No condensation buildup or component failure in sub-zero conditions, ensuring consistent readability of freezer temps (e.g., “-20°C”) even after long-term use.
Protective Film: The film on the black surface shields segments from fridge moisture, food splatters, and frequent wiping—easy to clean and maintains clarity over the fridge’s 10–15 year lifespan.
2. 3½ Digit Functionality for Sub-Zero & Precision Readouts
Negative Value Support:
As a 3½ digit display, it handles values from -199 to 999—critical for showing sub-zero freezer temps (e.g., “-18°C”) without extra wiring. Users instantly distinguish fridge (“5°C”) from freezer (“-18°C”) without labels.
Precision for Fine Metrics: Supports decimal points for accurate temp/humidity readings (e.g., “4.5°C” for fridge, “55.5% RH” for humidity)—ideal for high-end fridges with precise climate control.
3. Superior Visibility & Energy Efficiency
Ultra Bright White Illumination:
High luminous intensity ensures temps are clear in bright kitchens (e.g., morning sunlight) or dim rooms (e.g., nighttime fridge checks)—no squinting to read “2°C” vs. “7°C”.
Low Power Consumption (5-10mA/LED): Extremely low current draw minimizes fridge energy use (critical for ENERGY STAR-certified models) and extends backup battery life (for power outages, keeping temps visible).
White Segments on Black Surface: High contrast eliminates “washout” and makes digits/minus signs sharp—avoids misreading “-8°C” as “8°C” (a costly mistake that could spoil frozen food).

 

Detail Image

Technical Specifications

Category Parameter Specification (Refrigerator-Optimized)
Basic Design Display Type 3-Digit (3½ Digit) 7-Segment LED Display (supports -199 to 999, decimal points)
  Polarity Common Cathode
  Character Height 12.7mm (0.50 inch)
  Package/Outer Dimensions (L×W×H) 38.5×19×8mm / 38.2×19×8mm (consistent slim profile)
  Segment/Surface Finish White segments on Black Surface + protective film
Optical Performance Emitting Color Primary: Ultra Bright White; Optional: Red/blue/green/amber/yellow/orange
Environmental Resistance Operating Temperature -35°C ~ +85°C
Electrical Parameters Forward Voltage (VF) 2.8-3.2V per LED (white/blue/green); 1.8-2.2V (red/amber/orange)
  Recommended Forward Current 5-10mA per LED
  Power Consumption Low (energy-efficient for 24/7 use)
Quality & Compliance Core Advantages Wide temp range, stable performance, easy assembly, long lifespan
  Certificates RoHS Compliant, REACH Compliant

 

Applications
This display is purpose-built for refrigerators and climate-controlled devices, including:
Refrigerator Controllers:
Fridge/freezer combos (showing “5°C”/“-18°C”), wine coolers (e.g., “12°C”), or mini fridges (e.g., “8°C”).
Temperature/Humidity Indicators: Room thermostats (e.g., “22°C”), greenhouse monitors (e.g., “25°C/70% RH”), or cold storage sensors (e.g., “-25°C”).
Home Appliances: Smart thermostats (e.g., “20°C”), dehumidifiers (e.g., “50% RH”), or portable ACs (e.g., “26°C”).
Instrument Panels: Industrial cold chambers (e.g., “-30°C”), lab refrigerators (e.g., “4°C for samples”), or HVAC control panels (e.g., “23°C”).

 

Application Image

Why Choose This Display for Refrigerators?
Extreme Temp Durability:
-35°C ~ +85°C range handles freezer cold and kitchen heat—no performance loss, unlike standard displays.
Sub-Zero Readability: 3½ digit design shows minus signs for freezers—eliminates temp ambiguity, critical for food safety.
Kitchen-Friendly Design: Protective film resists moisture/grease, easy to clean; bright white light works in all lighting.
Energy & Cost Savings: Low current use cuts fridge energy bills; long lifespan matches fridge’s service life, reducing replacements.
Global Compliance: RoHS/REACH certification ensures export to key markets, aligning with family-friendly fridge safety standards.

 

Order & Logistics Information
Minimum Order Quantity (MOQ):
300 pieces for standard ultra bright white models; 500 pieces for custom colors.
Packing: Anti-static EPE + carton (each display is individually wrapped to protect film and through-hole pins).
Delivery Time: 5–7 days for standard orders; 10–12 days for custom color variants.
Transport: Express (FedEx/DHL for urgent samples), Air (medium-volume), Ocean (bulk fridge manufacturer orders).

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2006

  • Total Annual:

    10million-12million

  • Employee Number:

    150~200

  • Ecer Certification:

    Verified Supplier

Shenzhen Guangzhibao (Light-Bo) Technology Co. Ltd is specialized in LED products, including LED 7 segment numeric displays, alphanumeric LED displays,dot-matrix LED Displays, SMD LEDs, LED lamps,LCD backlights,LED light bar, bar gragh arrays and LED direction indicator displays and more. We offer ... Shenzhen Guangzhibao (Light-Bo) Technology Co. Ltd is specialized in LED products, including LED 7 segment numeric displays, alphanumeric LED displays,dot-matrix LED Displays, SMD LEDs, LED lamps,LCD backlights,LED light bar, bar gragh arrays and LED direction indicator displays and more. We offer ...

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Get in touch with us

  • Reach Us
  • Shenzhen Guangzhibao Technology Co., Ltd.
  • ROOM 308,3/F,BUILDING 1,BAIWANG RESEARCH AND DEVELOPMENT BUILDING,NO. 5298 ,SHAHE WEST ROAD,XILI STREET,NANSHAN DISTRICT,SHENZHEN
  • https://www.segment-leddisplay.com/

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