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7 Segment LED Display
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0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode

Brand Name: LIGHT-BO
Model Number: LB30401IR1B-D
MOQ: 1000
Price: Negotiate
Payment Terms: T/T,Western Union
Supply Ability: 50000 PCS/Day
Detail Information
Place of Origin:
Shenzhen, China
Certification:
ISO9001&RoHS
Application:
Coffee Maker Machine
Polarity:
Common Anode
Operating Temperature:
-45-80℃
Outer Dimensions:
30.1*16*7mm
Shipping:
By DHL, TNT, UPS, EMS, Etc.
Digits:
3
Life Span:
100000hours
Color:
Super Bright Red
Oem:
Yes
Digit Height:
0.4
Packaging Details:
EPE+CARTON
Supply Ability:
50000 PCS/Day
Highlight:

Durable 7 Segment LED Display

Product Description

0.4-Inch (10.16mm) Triple-Digit 7-Segment LED Display – Super Bright Red, Common Cathode for Audio & Home Appliances
 

Product Description
This triple-digit 7-segment LED display is engineered for high-visibility, energy-efficient numeric readouts across consumer and industrial devices—featuring a 0.4-inch character height, compact outer dimensions (30.1×16×7mm), and vivid super bright red emission. Configured as common cathode for seamless circuit integration, it stands out with a durable "yellow epoxy + black surface" design that enhances contrast and resists wear. Optimized for performance, it delivers high luminous intensity via tailored forward voltage, while boasting low power consumption, extremely low current, and even segment luminosity—ensuring reliability in bright ambient light. Fully RoHS/REACH compliant and compatible with industrial standard sizes, it supports 6 additional emission color and adapts to diverse use cases: from audio equipment to temperature/humidity indicators. Its slim 7mm depth fits tight enclosures, making it a versatile solution for precision-focused numeric display needs.

 

 

Product Image

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 0

Detail Image

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 1 

 

Key Specifications

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 environments—without the harsh glare of white LEDs. Its high luminous intensity ensures digits 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.
24/7 operated equipment: Audio amplifiers, home appliance control panels, or industrial process monitors.
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 and speeds up production for manufacturers.
Stable performance & long lifespan: Built with high-quality LED chips and robust encapsulation to resist voltage fluctuations and mechanical vibration. 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

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, mixers or equalizers
Industrial instrument panels 
Home Electronic Appliances:
Microwaves, induction cooktops, or small refrigerators.
Smart home devices
Numeric Displays:
Retail price tags, queue number indicators , or digital signage.
Process & Environmental Indicators:
Industrial temperature monitors, warehouse humidity sensors, or production counters

 

Product Parameters

Absolute Maximum Ratings(Ta=25ºC)

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

 

Code:Yellow Green- J

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.4 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 30   40 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 569   574 nm

 

Code:Amber/Yellow -Y

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.5 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 60   80 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 585   595 nm

 

Code:Orange -F

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.4 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 60   80 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 600   605 nm

 

Code:Super Bright Red -R

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 50   60 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 630   635 nm

 

Code:Ultra Bright Red -UR

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 1.8   2.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 80   100 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 625   635 nm

 

Code:Pure Green -G

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.6   3.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 120   180 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 515   525 nm


Code:Ultra Bright Blue -BH

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.8   3.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 120   140 mcd
Spectrum With Of Half Value △λ If=10mA   20   nm
Wavelength If=10mA 460   465 nm

 

Code:Ultra Bright White -WH

Parameter Symbol Condition Min Typ Max Unit
Forward Voltage Vf If=10mA 2.8   3.2 V
Reverse Voltage Vr Ir=10uA 5     V
Luminous Intensty Iv If=10mA 120   140 mcd
LED color Temperature K If=10mA 5500 20 6800 K
Chromaticity Coordinates
X/Y If=10mA 0.29,0.32   0.30,0.33 nm

 

    Shenzhen Guangzhibao Technology Co., Ltd. (Brand: Light-Bo) stablished in 2006 , A company that integrates R & D, manufacturing and sales of optoelectronics LED Displays . ISO 9001 2015 Quality Management Systems certified company . With more than 15 years OEM and ODM experience .
    Light Bo has been committed to provide high quality and low cost customized solutions to help customers reduce cost and enhance competitiveness.

Products Applications

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 2
    7 Segment LED Display, Customized LED Display, Numeric LED Display, Dot matrix LED Display, widely used for home appliances,tempearture indicators, humidity indicators, refrigerator controller,thernostats indicator,heating and cooling control and so on.

Certifications

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 3

Office and Factory Overview

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 4

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 50.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 6

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 7

Company Exhibitions

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 80.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 9

SHIPPING SERVICES

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 10

0.4 Inch Super Bright Red 7 Segment LED Display Triple Digit Common Anode 11

FAQ

FAQ(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 so on .
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. Detailes of payment methods can be negotiatble.
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 ceritified manufacturers with more than 20 years experience ,We conduct twice 100% percent test for all of our products before shipment.