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

Name: Ultra Bright White 12.7mm (0.5-Inch) 3-Digit (3½ Digit) 7-Segment Common Cathode LED Display for Refrigerators
Brand: Shenzhen Guangzhibao Technology Co., Ltd.
SKU: LB3050SYW3B-D
Price: 0.20 USD
Availability: InStock

Brand Name:	LIGHT-BO
Model Number:	LB3050SYW3B-D
MOQ:	1000
Price:	Negotiate
Payment Terms:	T/T,Western Union,
Supply Ability:	20000 PCS/Day

Detail Information

Product Description

Detail Information

Place of Origin:

Shenzhen, China

Certification:

ISO9001&RoHS

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

Packaging Details:

EPE+CARTON

Supply Ability:

20000 PCS/Day

Highlight:

3-digit 7-segment LED display

common cathode refrigerator LED display

ultra bright white 7-segment display

Product Description

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

This refrigerator-optimized numeric LED display is engineered for refrigerator controllers, temperature/humidity indicators, and home appliances. Designed with wide temperature tolerance, clear readability, and durability, it excels at displaying fridge-specific metrics including positive temperatures, sub-zero freezer temps, and humidity levels.

Key Features (Refrigerator-Optimized)

Wide Temperature Tolerance for Fridge Environments

Extreme Temp Range (-35°C ~ +85°C): Specifically designed to withstand fridge/freezer cold and kitchen ambient heat
Freezer-Ready Design: No condensation buildup or component failure in sub-zero conditions
Protective Film: Shields segments from moisture, food splatters, and frequent wiping

3½ Digit Functionality for Sub-Zero & Precision Readouts

Negative Value Support: Handles values from -199 to 999 for sub-zero freezer temps
Precision for Fine Metrics: Supports decimal points for accurate temp/humidity readings

Superior Visibility & Energy Efficiency

Ultra Bright White Illumination: High luminous intensity ensures clarity in all lighting conditions
Low Power Consumption (5-10mA/LED): Minimizes fridge energy use and extends backup battery life
White Segments on Black Surface: High contrast eliminates washout and improves readability

Technical Specifications

Category	Parameter	Specification (Refrigerator-Optimized)
Basic Design	Display Type	3-Digit 7-Segment LED Display
	Polarity	Common Cathode
	Character Height	12.7mm (0.50 inch)
	Package/Outer Dimensions	38.5×19×8mm / 38.2×19×8mm
	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)
Electrical Parameters	Recommended Forward Current	5-10mA per LED
Quality & Compliance	Core Advantages	Wide temp range, stable performance, easy assembly, long lifespan
Quality & Compliance	Certificates	RoHS Compliant, REACH Compliant

Applications

Refrigerator Controllers: Fridge/freezer combos, wine coolers, mini fridges
Temperature/Humidity Indicators: Room thermostats, greenhouse monitors, cold storage sensors
Home Appliances: Smart thermostats, dehumidifiers, portable ACs
Instrument Panels: Industrial cold chambers, lab refrigerators, HVAC control panels

Why Choose This Display for Refrigerators?

Extreme Temp Durability: -35°C ~ +85°C range handles freezer cold and kitchen heat
Sub-Zero Readability: 3½ digit design shows minus signs for freezers
Kitchen-Friendly Design: Protective film resists moisture/grease, easy to clean
Energy & Cost Savings: Low current use cuts energy bills; long lifespan reduces replacements
Global Compliance: RoHS/REACH certification ensures export to key markets

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 individually wrapped)
Delivery Time: 5-7 days for standard orders; 10-12 days for custom color variants.
Transport: Express (FedEx/DHL), Air (medium-volume), Ocean (bulk orders)

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~+85	°C
Storage Temperature Range	Tstg	-40~+85	°C
Solder Temperature(≤3 seconds)	Th	260	°C

Electrical Characteristics by Color Code

Yellow Green - J

Parameter	Symbol	Condition	Min	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
Wavelength	Dλ	If=10mA	569	574	nm

Amber/Yellow - Y

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	1.8	2.5	V
Luminous Intensity	Iv	If=10mA	60	80	mcd
Wavelength	Dλ	If=10mA	585	595	nm

Orange - F

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	1.8	2.4	V
Luminous Intensity	Iv	If=10mA	60	80	mcd
Wavelength	Dλ	If=10mA	600	605	nm

Super Bright Red - R

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	1.8	2.2	V
Luminous Intensity	Iv	If=10mA	50	60	mcd
Wavelength	Dλ	If=10mA	630	635	nm

Ultra Bright Red - UR

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	1.8	2.2	V
Luminous Intensity	Iv	If=10mA	80	100	mcd
Wavelength	Dλ	If=10mA	625	635	nm

Pure Green - G

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	2.6	3.2	V
Luminous Intensity	Iv	If=10mA	120	180	mcd
Wavelength	Dλ	If=10mA	515	525	nm

Ultra Bright Blue - BH

Parameter	Symbol	Condition	Min	Max	Unit
Forward Voltage	Vf	If=10mA	2.8	3.2	V
Luminous Intensity	Iv	If=10mA	120	140	mcd
Wavelength	Dλ	If=10mA	460	465	nm

Ultra Bright White - WH

Parameter	Symbol	Condition	Min	Typ	Max	Unit
Forward Voltage	Vf	If=10mA	2.8		3.2	V
Luminous Intensity	Iv	If=10mA	120		140	mcd
LED Color Temperature	K	If=10mA	5500	20	6800	K

Manufacturer Information

SHENZHEN GUANGZHIBAO TECHNOLOGY CO., LTD. (BRAND: LIGHT-BO)
Established in 2006, we are an ISO 9001:2015 certified company that integrates R&D, manufacturing and sales of optoelectronics LED Displays. With more than 15 years OEM and ODM experience, LIGHTBO is committed to providing high quality, low cost customized solutions to help customers reduce costs and enhance competitiveness.

Products 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 controller, thermostats indicator, heating and cooling control 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 any one 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.

Tags:

7 Segment LED Display

14 Segment LED Display

16 Segment LED Display

Alphanumeric LED Display

5x7 Dot Matrix LED Display

8x8 Dot Matrix LED Display

Dot Matrix LED Display

Custom LED Display

Oven Timer LED Display

Temperature Control LED Display

Electric Scooter LED Display

Numeric LED Display

LED Clock Display

Arrow LED Display

LED Backlight

LED Light Bar

SMD LED Display

7 Segment LED Display

14 Segment LED Display

16 Segment LED Display

Alphanumeric LED Display

5x7 Dot Matrix LED Display

8x8 Dot Matrix LED Display

Dot Matrix LED Display

Custom LED Display

Oven Timer LED Display

Temperature Control LED Display

Electric Scooter LED Display

Numeric LED Display

LED Clock Display

Arrow LED Display

LED Backlight

LED Light Bar

SMD LED Display

products details

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

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

3-digit 7-segment LED display

common cathode refrigerator LED display

ultra bright white 7-segment display