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Pure White 7 Segment LED Display 4 Digit Common cathode for Oven Timer Control
Product Overview
This 4-digit common cathode 7-segment LED display is a kitchen appliance-optimized solution, engineered exclusively for oven timer control systems. Featuring ultra bright white illumination, white SMD LED segments on a black surface with protective transparent film, and a high-temperature resistant design (max operating temp +120°C), it delivers crisp, reliable countdown readouts for baking, roasting, and cooking cycles.
With compact 27×60×14mm package dimensions, a balanced X/Y ratio (0.29–0.33), and low power consumption (5–10mA/LED), it fits seamlessly into oven control panel PCBs while withstanding the high-heat environment of kitchen appliance enclosures. Common cathode polarity ensures compatibility with mainstream timer driver ICs, and RoHS compliance enables global market deployment for home appliance manufacturers.
Core Technical Specifications
| Category | Parameter | Specification (Oven Timer-Optimized) |
| Basic Design | Display Type | 4-Digit 7-Segment LED Display |
| Package Dimensions (L×W×H) | 27 × 60 × 14mm | |
| Segment/Surface Finish | White SMD LEDs + White Segments + Black Surface + Transparent Protective Film | |
| Polarity | Common Cathode | |
| X/Y Ratio | 0.29–0.33 | |
| Optical Performance | Primary Emitting Color | Ultra Bright White |
| Optional Emitting Colors | Red, Yellow Green, Pure Green, Blue, Amber, Orange | |
| Luminous Intensity | 80–100 mcd/LED | |
| Electrical Parameters | Forward Voltage (VF) | 2.8–3.2V/LED |
| Recommended Forward Current | 5–10mA/LED | |
| Environmental Resilience | Operating Temperature Range | Up to +120°C (ideal for oven enclosures) |
| Quality & Compliance | Core Advantages | High luminous intensity, low power consumption, stable performance, continuous uniform segments, big viewing angle, long lifetime |
| Certification | RoHS Compliant |
Key Features (Oven Timer Control-Optimized)
1. High-Temperature Resilience for Oven Environments
Max Operating Temp +120°C: Engineered with heat-resistant epoxy encapsulation and SMD LED chips, it withstands the high ambient temperatures inside oven control panel enclosures (generated by heating elements and cooking cycles) without dimming, flickering, or segment failure.
Transparent Protective Film: Shields the black surface and white segments from grease splatters, steam condensation, and cleaning agent corrosion—maintaining clear readability and sleek appearance throughout the oven's 8–10 year service life.
2. Clear Readability for Kitchen Timer Countdowns
Ultra Bright White Segments + Black Surface Contrast: Eliminates glare from kitchen overhead lights and oven interior illumination, ensuring 4-digit timer values are crisp and easy to read from 1–2 meters—even when users are busy preparing ingredients.
Big Viewing Angle (≥120° H/V): Delivers clear visibility from side positions, eliminating the need to lean over hot cooktops to check remaining time.
Continuous Uniform Segments: ≤5% brightness variation across all segments prevents digit distortion, ensuring accurate reading of short countdowns.
3. Energy Efficiency & Long-Term Reliability
Low Power Consumption: Minimizes energy use for oven timer systems that run intermittently during cooking cycles, aligning with home appliance energy-saving standards and reducing household electricity bills.
Long Lifetime: High-quality SMD LED chips match the service life of built-in ovens and gas cookers, eliminating the need for frequent display replacements and reducing maintenance costs for homeowners.
Stable Performance: Resists voltage fluctuations from kitchen power grids and electromagnetic interference from oven heating elements, ensuring consistent countdown operation without glitches.
4. Manufacturer-Friendly Easy Integration
Common Cathode IC Compatibility: Works seamlessly with mainstream timer driver ICs and oven control microcontrollers. Simplifies circuit design for countdown functions, time adjustment, and end-of-cycle alert triggers.
Standardized Package Design: 27×60×14mm dimensions fit into most built-in oven and gas cooker control panel PCB layouts—no custom PCB redesign required, supporting automated SMT production lines for high-volume manufacturing.
Multi-Color Versatility: Optional emitting colors enable functional coding for different oven modes:
Red: High-visibility for fast preheat timer countdowns
Amber: Warm tones for slow roasting cycles
Blue: Modern aesthetics for premium smart oven models
Product Image
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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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 | Dλ | 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
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.
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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 .
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