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Custom made Ultra bright red 4 digit 7 segment led clock dispaly for low cost Mini Oven Timer
Product Overview
This custom 0.42-inch (10.67mm) 4-digit 7-segment LED display is engineered exclusively for low-cost mini oven timers, digital countdown devices, and budget home appliances. Featuring ultra bright red illumination (625–635nm wavelength, 80–100mcd luminous intensity) and a high-contrast white-segment-on-black-surface design with protective film, it delivers eye-catching readouts without compromising production costs.
With flexible common anode/common cathode polarity options, a compact 39×25×9.3mm footprint, and low forward voltage (1.8–2.3V/LED), it integrates seamlessly into cost-sensitive PCB layouts. The display's high efficiency, extremely low current operation, and uniform segment luminosity ensure reliable performance for intermittent timer use, while the protective surface film shields against kitchen grease and steam—extending service life for end-users. Multi-color options further support product line diversification without additional R&D costs.
Core Technical Specifications
| Category | Parameter | Specification (Low-Cost Mini Oven Timer-Optimized) |
| Basic Design | Display Type | Custom 4-Digit 7-Segment LED Clock Display |
| Digit Height | 10.67mm (0.42 inch) | |
| Outer Dimensions (L×W×H) | 39 × 25 × 9.3mm | |
| Segment/Surface Finish | White Segments on Black Surface with Protective Film | |
| Polarity Options | Common Anode / Common Cathode (customer-selectable) | |
| Optical Performance | Primary Emitting Color | Ultra Bright Red |
| Wavelength Range | 625–635nm | |
| Luminous Intensity | 80–100 mcd/LED | |
| Core Optical Traits | High-luminous intensity output, luminous evenly distributed on each segment | |
| Optional Emitting Colors | Various colors available (green, blue, white, amber, etc.) | |
| Electrical Parameters | Forward Voltage (VF) | 1.8–2.3V/LED (low-voltage for cost-saving driver circuits) |
| Recommended Forward Current | 5–15mA/LED | |
| Power Traits | High-efficiency, low-power consumption, extremely low-current | |
| Quality & Cost Advantages | Core Benefits | Low-cost manufacturing, easy assembly, long lifespan (50,000+ hours), IC compatible |
| Certification | RoHS Compliant (default, REACH upgrade available on request) |
Product Image
Key Features (Low-Cost Mini Oven Timer-Optimized)
1. Budget-Friendly Design for Cost-Sensitive Manufacturing
Flexible Polarity Options: Common anode/common cathode compatibility eliminates the need for custom driver IC selection, reducing component costs and simplifying circuit design for low-cost mini oven timer production lines.
Low Forward Voltage (1.8–2.3V/LED): Matches standard low-voltage power supplies used in budget home appliances, avoiding the need for expensive voltage regulators and cutting overall BOM (bill of materials) costs.
Compact 39×25×9.3mm Size: Fits into off-the-shelf mini oven control panel PCB layouts, eliminating custom housing or bracket expenses and streamlining high-volume automated assembly.
2. High-Visibility Red Light for Kitchen Timer Readouts
Ultra Bright Red Illumination (625–635nm): Red light is highly distinguishable in busy kitchen environments, ensuring timer values (e.g., 00:05 final baking minutes) are visible at a glance—even in bright sunlight or under overhead kitchen lights.
Uniform Segment Luminosity: ≤5% brightness variation across all segments prevents digit distortion, avoiding misreads that could ruin cooking results—critical for user satisfaction with low-cost appliances.
Protective Surface Film: Shields the black surface and white segments from grease splatters, steam condensation, and cleaning agent corrosion, maintaining readability throughout the mini oven's service life without additional maintenance costs.
3. Energy Efficiency for Low-Power Operation
Extremely Low-Current Operation: Minimizes energy draw for intermittent timer use, reducing standby power consumption and aligning with global energy-saving standards for home appliances—no impact on household electricity bills.
High Efficiency: Converts electrical energy into light with minimal heat loss, avoiding overheating in sealed mini oven control panels and extending the display's lifespan without added cooling components.
4. Manufacturer-Friendly Easy Integration
IC Compatibility: Works seamlessly with low-cost mainstream driver ICs (e.g., TM1637, HT1621, MAX7219) and microcontrollers, simplifying circuit design for countdown functions, time adjustment, and end-of-cycle buzzer activation.
Standardized Assembly: Supports through-hole or SMT pinout configurations, compatible with automated production lines—reducing labor costs and assembly errors for high-volume low-cost mini oven manufacturing.
Multi-Color Versatility: Optional emitting colors enable product line expansion (e.g., green for normal status, blue for premium models) without retooling production lines, maximizing ROI for manufacturers.
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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