Ultra Bright White 4-Digit 7-Segment LED Display – Common Anode for Oven Controllers & Home Appliances

Brand Name:LIGHT-BO
Certification:ISO9001&RoHS
Model Number:LB40381EW-3S-T1-D
Minimum Order Quantity:1000
Delivery Time:10-15 days
Payment Terms:T/T
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Location: Shenzhen Guangdong China
Address: ROOM 308,3/F,BUILDING 1,BAIWANG RESEARCH AND DEVELOPMENT BUILDING,NO. 5298 ,SHAHE WEST ROAD,XILI STREET,NANSHAN DISTRICT,SHENZHEN
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Ultra Bright White 4-Digit 7-Segment LED Display - Common Anode for Oven Controllers & Home Appliances

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High-Temp Scene Mockup: The display integrated into an oven controller, showing a cooking time ("03:30") or temperature ("180ºC") to emphasize compatibility with high-heat environments.
Luminous Close-Up: Ultra bright white digits (e.g., "220ºC") on a black face, demonstrating high contrast and no glare-critical for reading while operating hot appliances.
Dimension Labeled Diagram: Clear marking of 44×16×11.85mm package dimensions and 9.92mm (0.38-inch) character height, visualizing its compact fit for appliance control panels.
SMD Pin Detail: Shot of the SMD pin type to highlight easy surface-mount assembly for automated production lines.
Environmental Test Shot: The display functioning in a simulated high-temperature environment (labeled "+120ºC") to showcase thermal resistance.


Core Specifications Table

SpecificationDetails
Display Type4-digit 7-segment LED numeric display (optimized for timer/temperature control)
Character Height9.92mm (0.38 inch) - ideal for close-range readability (0.5-2m, e.g., oven front panels)
Package Dimensions44*16*11.85mm - compact footprint for space-constrained appliance controllers
Face/Segment DesignBlack face + ultra bright white segments - anti-reflective, high contrast for kitchen lighting
PolarityCommon Anode - compatible with mainstream anode-driven control circuits
Emitting ColorUltra bright white - clear visibility in bright kitchens or dim storage areas
Operating TemperatureMax. +105ºC ~ +120ºC - heat-resistant for oven/cooker environments (withstands proximity to heating elements)
Pin TypeSMD (Surface Mount Device) - supports automated SMT assembly, reducing production errors
ComplianceRoHS/REACH Compliant - free from restricted substances (lead, mercury) for global appliance markets
Key TraitsHigh luminous intensity, low power consumption, long lifespan (≥50,000 hours)


Key Selling Points
1. Extreme Heat Resistance for Oven/Cooker Environments
+105ºC~+120ºC operating temperature:
Engineered with high-temperature-resistant materials (heat-resistant PC face, LED chips) to withstand the ambient heat near oven heating elements or gas cookers. Unlike standard displays (max. +85ºC) that fade or fail in high heat, this display maintains stable performance-critical for oven timers/temperature controls that operate for hours at high temperatures.
No thermal brightness degradation: Even at +120ºC, luminous intensity (90-110mcd typical) remains consistent, ensuring "200ºC" or "05:00" (timer) is readable without squinting, avoiding cooking errors (e.g., undercooking/overcooking due to unreadable temperature).
2. High Visibility & Practical Design for Kitchen Use
Ultra bright white + black face:
The white segments cut through kitchen glare (e.g., under-cabinet lights, sunlight through windows) and the black matte face eliminates reflection. Perfect for busy kitchens where users glance at the oven quickly while prepping other food.
Big viewing angle: Horizontal/vertical viewing angles ≥120°, so the display is readable even when standing to the side of the oven (no need to lean directly in front)-enhancing user safety (avoids leaning too close to hot appliances).
3. Energy Efficiency & Long-Term Reliability
Low power consumption:
Optimized circuit design uses only 5-10mA per segment, reducing the oven's overall energy draw (critical for energy-efficient appliance certifications like ENERGY STAR).
Stable performance & good consistency: Same-batch displays have ≤5% deviation in voltage and brightness, ensuring uniform visual output if multiple displays are used (e.g., a cooker with separate oven and stovetop controls). Long lifespan (≥50,000 hours) means no frequent replacement-even for ovens used daily.
4. Easy Integration for Appliance Manufacturers
IC compatible: Seamlessly works with common appliance control ICs (e.g., TM1637, MAX7219) for timer/temperature display, eliminating the need for custom driver development. Shortens appliance R&D cycles and reduces engineering costs.
SMD pin type: Designed for automated SMT assembly lines, enabling high-speed production (20,000+ units/day) with minimal manual intervention. The 44×16×11.85mm compact size fits standard appliance control panel cutouts-no need to redesign housing.

Detail Image


Target Applications
1. Oven & Cooker Controls
Multifunction digital oven timers:
Display cooking time ("04:30"), preheat countdown ("00:59"), or temperature ("190ºC").
Gas cookers/induction cooktops: Show heat levels ("5"), timer settings ("01:00"), or safety alerts (e.g., "HOT" via numeric code).
Toaster ovens/slow cookers: Indicate cooking mode (numeric codes for "BAKE"/"ROAST") and remaining time ("02:15").
2. Other Home Appliances
Microwaves:
Display cook time ("02:00") or power levels ("70%").
Electric pressure cookers: Show pressure levels (numeric codes) or timer ("03:20").
Smart kitchen scales: Indicate weight ("1.2kg") or temperature ("25ºC") for food prep.


Procurement & Delivery Information

Procurement ItemDetails
Minimum Order Quantity (MOQ)100 pieces (sample orders: 5-10 pieces available for testing)
Unit Price Range$0.22-$0.35/piece (bulk orders ≥5000 pieces: tiered discounts apply)
Customization OptionsSegment color (amber/orange), decimal point position, pin layout
Production Capacity18,000 pieces/day
PackagingAnti-static plastic trays (150 pieces/tray) + corrugated cartons (shockproof)
Delivery CycleIn-stock: 3-5 working days; Customized: 8-12 working days (including high-temp testing)
Shipping MethodsDomestic: Express (SF/UPS); Export: Sea (FOB Shenzhen), Air (DHL/FedEx)


Quality Assurance
High-Temp Testing:
Every unit undergoes a 24-hour continuous operation test at +120ºC to verify thermal stability-only passing units are shipped.
Material Compliance: Uses RoHS/REACH-certified LED chips and heat-resistant plastics, meeting global appliance safety standards (e.g., CE, UL, CCC).
Warranty: 1.5-year warranty for non-human damage. If the display fails due to heat or material defects, free replacement is provided (batch number and test report required).

Application Image



Frequently Asked Questions (FAQ)
Q: Can it display decimal points for precise temperature (e.g., "185.5ºC")?

A: Yes-each digit can be equipped with a decimal point (customizable) to support precise temperature or timer readings (e.g., "00:30.5" for half-minute increments).
Q: Is the black face scratch-resistant?
A: The face uses matte PC material with a scratch-resistant coating, so it won't easily show marks from cleaning (e.g., wiping with a damp cloth after kitchen use).
Q: Does it require a heat sink for use near oven heating elements?
A: No-the display's internal structure and materials are designed to dissipate heat naturally. It can be mounted up to 10cm from oven heating elements without additional heat sinks.

China Ultra Bright White 4-Digit 7-Segment LED Display – Common Anode for Oven Controllers & Home Appliances supplier

Ultra Bright White 4-Digit 7-Segment LED Display – Common Anode for Oven Controllers & Home Appliances

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