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0.80 inch double numeric LED display
The Evolution of Display Technology: A Deep Dive into the Seven Segment LED 0.8 Inch
In an era where display technology is paramount, the seven segment LED 0.8 inch has carved out its niche, becoming an indispensable component in the electronics manufacturing sector. Known for its simplicity, reliability, and clarity, the seven segment display (7 segment display) has widespread applications ranging from consumer electronics to complex industrial equipment. This comprehensive article aims to explore the unique features, applications, and benefits of the seven segment LED 0.8 inch, supplemented with insightful case studies and user testimonials.
Unveiling the Seven Segment Display
The 7 segment display, particularly the dual 7 segment display variant, offers an effective solution for displaying numerical information with high visibility and minimal power consumption. Its design is ingeniously simple, comprising seven individual segments that can be illuminated in various combinations to represent numbers and, in some cases, letters. This functionality is vital in devices where clarity and efficiency are paramount.
Key Features and Applications
The versatility of the seven segment LED 0.8 inch lies in its features: compact size, low energy requirement, and high durability. These displays are prominently used in digital clocks, calculators, and instrumentation panels, where clear and direct numerical display is essential. Their robustness also makes them suitable for outdoor applications, such as scoreboards and gas price signs, where they can withstand environmental factors.
Benefits of Implementing 0.8 Inch Displays
Adopting the 0.8 inch seven segment display brings several advantages to electronic devices. These include enhanced readability due to the larger size, greater energy efficiency compared to other display technologies, and improved reliability over time. Moreover, their simplicity in design translates to ease of programming and integration into various electronic circuits, making them a favorite among engineers and designers.
Real-World Success: Case Studies
One compelling case study involves a manufacturer of digital thermometers who transitioned to using 0.8 inch seven segment LEDs for better visibility. This change significantly improved user satisfaction ratings, as the larger displays were much easier to read from a distance. Another case highlights the use of these displays in public transport timetables, where their clarity and durability have led to reduced maintenance costs and enhanced passenger experience.
Hearing from the Field: User Testimonials
Engineers and purchasers in the electronics field have praised the seven segment LED 0.8 inch for its straightforward integration and reliable performance. “Incorporating these displays into our designs has streamlined our production process and enhanced the overall quality of our products,” shares an electronics design engineer. Administrators, on the other hand, appreciate the cost-effectiveness and longevity these displays offer, providing significant long-term savings.
Looking Ahead: The Future of Seven Segment Displays
The journey of the seven segment display is far from over. With continuous advancements in LED technology, these displays are becoming even more efficient, with greater luminosity and color options. The evolution of smart and programmable seven segment displays opens new avenues for interactive and dynamic information presentation, signaling a bright future for this enduring technology.
Conclusion: Embracing the Legacy and Innovation of Seven Segment Displays
The seven segment LED 0.8 inch represents a harmonious blend of traditional display principles with modern LED advancements. Its enduring popularity among electronics manufacturer engineers, purchasers, and administrators is a testament to its versatility, reliability, and efficiency. As display technology continues to evolve, the seven segment display remains a fundamental component, illuminating the path towards innovative electronic design.
Call to Action
For those in the electronics industry looking to enhance their products with reliable, efficient, and clear displays, the seven segment LED 0.8 inch offers a proven solution. Explore the possibilities and elevate your designs by integrating these versatile displays into your next project.
Features
- 0.80 Inch Digit Height (20.30mm): Offers large and easily readable numeric displays, ideal for applications requiring visibility from a distance.
- Dimensions: The overall size of 35.80 x 25.80 mm makes it suitable for applications where display prominence is important.
- Low Current Operation: Energy-efficient design, which is beneficial for reducing power consumption, especially in battery-operated devices.
- Common Anode and Common Cathode Availability: Provides flexibility in circuit design, accommodating a wide range of electronic configurations.
- Excellent Character Appearance: Ensures clear and sharp numeric displays for ease of readability.
- High Light Output: Bright display ensures visibility in various lighting conditions.
- Easy Mounting on PC Boards or Sockets: Designed for straightforward integration onto printed circuit boards or into sockets, facilitating ease of assembly.
- IC Compatible: Can be easily interfaced with various integrated circuits, making it suitable for complex electronic designs.
- Multicolor Availability: Available in different colors, offering design flexibility and customization options.
- Categorized for Luminous Intensity: Ensures uniform brightness across units for consistent performance.
- Technically Rugged: Built to be durable and reliable, suitable for various operating conditions and environments.
- Standard Design: Features a standard gray surface with white segments, providing a classic and professional display appearance.
- RoHS Compliance: Manufactured in compliance with environmental and health safety standards.
Applications
- Public Information Displays: Suitable for airports, train stations, and bus terminals to display times, gate numbers, or other critical information.
- Digital Clocks and Timers: Ideal for timekeeping in schools, offices, public transport, and large-scale clocks.
- Electronic Scoreboards: Used in sports arenas and event halls for displaying scores, times, or counts.
- Industrial Equipment: Applicable for displaying measurements, counts, or operational data in machinery and equipment.
- Consumer Electronics: Incorporated in household appliances like microwave ovens and washing machines for setting and status displays.
- Medical Devices: Employed in medical equipment for showing readings, timers, and measurement data.
- Automotive Displays: Useful in vehicle dashboards for showing information like fuel level, temperature, or warning signals.
- Control Panels: Used in control panels for machinery, HVAC systems, and other industrial control systems.
- Retail and Financial Equipment: Suitable for ATMs, cash registers, and pricing displays in retail settings.
Electrical-optical characteristics:
Part No. (Cathode) | Part No. (Anode) | Emitting Color | Material | Peak Wavelength (nm) | Voltage typ.(v) | Voltage max. (v) | Luminous min | Luminous typ |
|---|---|---|---|---|---|---|---|---|
BL-D80A-22B |
BL-D80B-22B |
Ultra Blue |
InGaN |
470 |
4.2 |
95 |
||
BL-D80A-22D |
BL-D80B-22D |
Super Red |
GaAlAs/GaAs,DH |
660 |
2.2 |
150 |
||
BL-D80A-22E |
BL-D80B-22E |
Red |
GaAsP/GaP |
635 |
2.5 |
70 |
||
BL-D80A-22G |
BL-D80B-22G |
Green |
GaP/GaP |
570 |
2.5 |
75 |
||
BL-D80A-22PG |
BL-D80B-22PG |
Ultra Pure Green |
InGaN |
525 |
4.5 |
210 |
||
BL-D80A-22S |
BL-D80B-22S |
Hi Red |
GaAlAs/GaAs,SH |
660 |
2.2 |
120 |
||
BL-D80A-22UE |
BL-D80B-22UE |
Ultra Red |
AlGaInP |
630 |
2.5 |
120 |
||
BL-D80A-22UG |
BL-D80B-22UG |
Ultra Green |
AlGaInP |
574 |
2.5 |
145 |
||
BL-D80A-22UHR |
BL-D80B-22UHR |
Ultra Red |
AlGaInP |
645 |
2.5 |
180 |
||
BL-D80A-22UR |
BL-D80B-22UR |
Ultra Red |
GaAlAs/GaAs,DDH |
660 |
2.2 |
180 |
||
BL-D80A-22UY |
BL-D80B-22UY |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
120 |
||
BL-D80A-22W |
BL-D80B-22W |
Ultra White |
InGaN |
- |
4.2 |
95 |
||
BL-D80A-22Y |
BL-D80B-22Y |
Yellow |
GaAsP/GaP |
585 |
2.5 |
70 |
||
BL-D80A-22YO |
BL-D80B-22YO |
Ultra Amber |
AlGaInP |
619 |
2.5 |
120 |
Package configuration & Internal circuit diagram
All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.
Partno description:
LED seven segment , called also LED numeric display, is widely applied in home appliance panel display and other application.
More information
Reflector Surface color (1st number)/ Segment Lens color (2nd number):
| Number | 0 | 1 | 2 | 3 | 4 | 5 |
| Ref Surface Color | White | Black | Gray | Red | Green | |
| Epoxy Color | Water clear | White diffused | Red Diffused | Green Diffused | Yellow Diffused |
Absolute maximum ratings (Ta= 25°C)
| Parameter | S | D | UR | E | Y | G | Unit | |
| Forward Current IF | 25 | 25 | 25 | 25 | 25 | 30 | mA | |
| Power Dissipation Pd | 60 | 60 | 60 | 60 | 60 | 65 | mW | |
| Reverse Voltage VR | 5 | 5 | 5 | 5 | 5 | 5 | V | |
| Peak Forward Current IPF (Duty 1/10 @1KHZ) | 150 | 150 | 150 | 150 | 150 | 150 | mA | |
| Operation Temperature TOPR | -40 to +80 | °C | ||||||
| Storage Temperature TSTG | -40 to +85 | °C | ||||||
| Lead Soldering Temperature TSOL | Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb) | °C | ||||||
Absolute maximum ratings (Ta= 25°C)
| Parameter | UHR | UE | YO | UY | UG | PG | UB | UW | Unit |
| Forward Current IF | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | mA |
| Power Dissipation Pd | 75 | 65 | 65 | 65 | 75 | 110 | 120 | 120 | mW |
| Reverse Voltage VR | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | V |
| Peak Forward Current IPF (Duty 1/10 @1KHZ) | 150 | 150 | 150 | 150 | 150 | 150 | 100 | 100 | mA |
| Operation Temperature TOPR | -40 to +80 | °C | |||||||
| Storage Temperature TSTG | -40 to +85 | °C | |||||||
| Lead Soldering Temperature TSOL | Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb) | °C | |||||||
Related Information
Applied for:
1. Application
The Seven Segment LED is widely applied for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Checking with BETLUX’s Sales in
advance for information on applications in which exceptional reliability is required, particularly
when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in
aviation, transportation, traffic control equipment, medical and life support systems and safety
devices).
2. Storage
The storage ambient for the Seven Segment LED should not exceed 30℃ temperature or 70% relative humidity.
For extended storage out of their original packaging, it is recommended that the Seven Segment LEDs be stored
in a sealed container with appropriate desiccant, or in a desiccator with nitrogen ambient.
3. Cleaning
Avoid using any unspecified chemical solvent to clean LED . For example, Trichloroethylene, Chlorosen, Acetone, and Diflon S3MC.
Any cleaning method can only be taken under normal temperature in one minute or less if it is required.
Use water to clean the Seven Segment LED if necessary under room temperature
dry it immediately after that.
4.Forming
Any unsuitable stress applied to the epoxy may break bonding wires in LED
Any forming on lead pin must be done before soldering, not during or after soldering.
Avoid applying any stress to resin in order to prevent the epoxy fracture and break on bonding wire.
While forming, please use a tie bar cut or equivalent to hold or bend the pin.
2mm from the base of resin is the minimum distance for the place bending the lead pin.
Avoid bending the lead pin at the same point twice or more.
Soldering
When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.
Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.
Recommended soldering conditions:
| IR Reflow Soldering (for SMD display) | Wave Soldering | Soldering Iron | |||
| Pre-Heat | 150-180°C | Pre-Heat | 100°C Max. | Temperature | 300°C Max. |
| Pre-Heat Time | 120sec Max. | Pre-Heat Time | 60sec Max. | ||
| Peak Temperature | 260°C Max. | SolderWave | 260°C Max. | Soldering Time | 3sec Max.(one time only) |
| Soldering Time | 10 sec Max. | Soldering Time | 5sec Max. | ||
Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED
ESD(Electrostatic Discharge)
Static Electricity or power surge will damage the LED.
Suggestions to prevent ESD (Electrostatic Discharge):
n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs
n All devices, equipment, and machinery must be properly grounded
n Work tables, storage racks, etc. should be properly grounded
n Use ion blower to neutralize the static charge which might have built up on surface of the LED’s
plastic lens as a result of friction between LEDs during storage and handling
ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current,
low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on”
and Vf of the suspect LEDs at low currents.
The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP
product.
LED dirve IC by Maxim Integrated
MAX6959 4½-Digit LED Display Driver
MAX6958 4½-Digit LED Display Driver
MAX6955 7-, 14-, 16-Segment LED Display Driver
MAX6956 LED Static Display Driver and I/O Port
MAX6954 7-, 14-, 16-Segment LED Display Driver
MAX6952 5 x 7 Matrix LED Display Driver
MAX6957 LED Static Display Driver and I/O Port
MAX6950 5-Digit LED Display Driver
MAX6951 8-Digit LED Display Driver
ICM7212 4-Digit LED Driver
ICM7212A 4-Digit LED Driver
ICM7212AM 4-Digit LED Driver
ICM7212M 4-Digit LED Driver
ICM7218A 8-Digit LED Driver
ICM7218B 8-Digit LED Driver
ICM7218C 8-Digit LED Driver
ICM7218D 8-Digit LED Driver
MAX7221 8-Digit LED Display Driver
MAX7219 8-Digit LED Display Driver
When selecting power for LED systems, it’s essential to understand several key parameters to ensure safe operation, longevity, and optimal performance. Here are some steps and considerations for LED power selection:
- Determine the Forward Voltage (Vf) of the LED(s):
Each LED has a forward voltage, which is the voltage at which the LED operates when the current is flowing through it. This value can typically be found in the LED’s datasheet.
- Determine the Forward Current (If) of the LED(s):
The forward current is the current at which the LED is designed to operate. Running an LED at higher than its rated current can reduce its lifespan and increase the heat it produces.
- Decide on the Configuration:
Series Configuration: When LEDs are connected in series, the forward voltages add up, but the current remains the same.
Parallel Configuration: When LEDs are connected in parallel, the forward voltage remains the same, but the currents add up. This configuration can be risky because if one LED fails or has a slightly lower forward voltage, it can cause the other LEDs to draw more current.
Calculate Total Power Requirements:
Power (W) = Total Forward Voltage (V) x Total Forward Current (A)
For example, if you have three LEDs connected in series, each with a forward voltage of 3V and a forward current of 20mA, the total power requirement would be:
Power = (3V + 3V + 3V) x 20mA = 9V x 0.02A = 0.18W
- Select an Appropriate Power Supply:
- Voltage Rating: The power supply voltage should match or slightly exceed the total forward voltage of your LED configuration.
- Current Rating: The power supply’s current rating should meet or exceed the total forward current of your LED configuration.
- Safety Margin: It’s a good practice to select a power supply that can provide at least 20% more power than your calculated requirement. This ensures the power supply isn’t operating at its maximum capacity, which can extend its life and ensure safer operation.
- Consider Additional Features:
- Dimming Capability: If you want to control the brightness of your LEDs, choose a power supply with dimming capabilities.
- Overcurrent and Overvoltage Protection: To protect your LEDs, select a power supply with built-in protection mechanisms.
- Thermal Management: Ensure that the power supply has adequate cooling, especially if it will be enclosed or in a location with limited airflow.
- Regulation and Efficiency:A power supply with good regulation will maintain a consistent voltage output despite variations in the load. High efficiency ensures minimal power is wasted as heat.
- Physical Size and Form Factor:Depending on where you plan to place the power supply, its size and shape may be critical factors.
In summary, when selecting power for LED systems, understanding your LED’s requirements and the configuration you plan to use is essential. Then, pick a power supply that meets those needs with some added safety margin, keeping in mind any additional features or constraints relevant to your project.
Here are some well-regarded brands in the industry:
- Mean Well: One of the most recognized brands in the LED power supply industry, Mean Well offers a wide range of products suitable for both indoor and outdoor applications. Their units often come with features like overcurrent protection, dimming capabilities, and high efficiency.
- Tridonic: A global leader in lighting technology, Tridonic offers LED drivers and power supplies that cater to various lighting solutions, from simple setups to advanced smart lighting systems.
- Philips Advance Xitanium: Philips is a well-known brand in the lighting industry, and their Xitanium series of LED drivers are known for reliability and performance. They cater to both indoor and outdoor LED applications.
- Osram: Another giant in the lighting industry, Osram offers a range of LED drivers and power supplies suitable for various applications, including architectural and street lighting.
- LIFUD: Specializing in LED drivers, LIFUD is known for its high-quality products that cater to both commercial and residential LED lighting solutions.
- MOSO: This brand offers a variety of LED drivers, especially for outdoor and industrial applications. Their products are known for durability and performance.
- TDK-Lambda: With a history in power electronics, TDK-Lambda offers a range of power supplies and LED drivers suitable for various applications, emphasizing reliability and advanced features.
