RoHS Vacuum Fluorescent Displays
Description
RoHS Vacuum Fluorescent Displays (VFDs) are electronic display devices that provide high brightness and wide viewing angles. They are designed to display information through illuminated segments or graphics, offering a clear and vibrant visual output without the need for backlighting.
Working Principle
RoHS Vacuum Fluorescent Displays operate by using a cathode, grid, and anode sealed within a high-vacuum glass envelope. The cathode is heated to emit electrons, which are then accelerated towards the anode. The anode is coated with a fluorescent material that emits light when struck by these electrons. The grid controls the flow of electrons to the anode, allowing for the display of specific segments or graphics. This technology is useful because it provides bright, clear displays with wide viewing angles, making it suitable for various lighting conditions.
Applications
Vacuum Fluorescent Displays are commonly used in consumer electronics, automotive dashboards, and industrial equipment. Specific examples include digital clocks, car audio systems, and microwave ovens, where their high brightness and clarity are advantageous.
Advantages over other Vacuum Fluorescent Displays
RoHS VFDs offer several advantages, including compliance with environmental standards that restrict the use of certain hazardous substances. This compliance ensures that these displays are safer for both users and the environment. Additionally, they maintain the inherent benefits of VFDs, such as high brightness and wide viewing angles, without compromising on performance.
Limitations
One limitation of RoHS Vacuum Fluorescent Displays is their requirement for high-voltage drivers, which can increase the complexity and cost of the overall system. Additionally, while they offer excellent brightness, they may not be as energy-efficient as some other display technologies, such as LCDs or OLEDs.
Considerations
When considering RoHS Vacuum Fluorescent Displays, it is important to account for initial costs, which may be higher due to the need for high-voltage drivers and compliance with RoHS standards. Operating expenses can also be higher due to energy consumption. However, these displays are known for their durability and reliability, which can offset some of the initial and operational costs over time. Maintenance and replacement costs are generally low, as VFDs are robust and have a long operational life.
from DigiKey
Vacuum Fluorescent Display (VFD) 23 x 2 Graphic 4.75V ~ 5.25V Serial 146.00mm x 43.00mm x 9.40mm [See More]
- Display Type: Graphic
- Number of Characters: 23
- Number of Rows: 2
- Viewing Area Width: 18.8
from DigiKey
Vacuum Fluorescent Display (VFD) Graphic 4.75V ~ 5.25V Parallel/Serial [See More]
- Display Type: Graphic
- Viewing Area Height: 115
- Viewing Area Width: 28.6
- Features: Serial Interface Option; RoHS
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 5V Parallel/Serial 116.00mm x 37.00mm x 9.30mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 7
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 5V Parallel/Serial 116.00mm x 37.00mm x 9.30mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 7
from DigiKey
Vacuum Fluorescent Display (VFD) 16 x 2 Character 5V Parallel/Serial 80.00mm x 36.00mm x 8.50mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 16
- Number of Rows: 2
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 5V Parallel/Serial 190.00mm x 55.00mm x 9.70mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 7
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 5V Parallel/Serial 190.00mm x 55.00mm x 9.70mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 7
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 5V Serial 98.00mm x 23.00mm x 8.55mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 128 x 128 Graphic 5V Parallel/Serial 96.50mm x 75.00mm x 12.50mm [See More]
- Display Type: Graphic
- Number of Characters: 128
- Number of Rows: 128
- Viewing Area Width: 51.1
from DigiKey
Vacuum Fluorescent Display (VFD) 16 x 2 Character Serial 80.00mm x 36.00mm x 12.70mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 16
- Number of Rows: 2
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character 4.75V ~ 5.25V USB 98.00mm x 60.00mm x 30.50mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 4.75V ~ 5.25V USB 116.00mm x 37.00mm x 29.00mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 10 x 1 14-Segment, Alphanumeric 4.7V 112.00mm x 22.00mm x 6.60mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 10
- Number of Rows: 1
- Character Width: 5
from DigiKey
Vacuum Fluorescent Display (VFD) [See More]
- Features: RoHS
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character I ²C 98.00mm x 60.00mm x 28.90mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 5
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 4.75V ~ 5.25V Serial 116.00mm x 37.00mm x 29.48mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character 4.75V ~ 5.25V USB 116.00mm x 37.00mm x 29.00mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 9V ~ 15V I ²C 116.00mm x 37.00mm x 29.48mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 5
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 2 Character 9V ~ 15V Serial 116.00mm x 37.00mm x 29.48mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 2
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character 4.75V ~ 5.25V RS-422 98.00mm x 60.00mm x 30.50mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character 4.75V ~ 5.25V RS-422 98.00mm x 60.00mm x 30.50mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character 9V ~ 15V Serial 98.00mm x 60.00mm x 27.70mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character 4.75V ~ 5.25V USB 98.00mm x 60.00mm x 30.50mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 2
from DigiKey
Vacuum Fluorescent Display (VFD) 20 x 4 Character 9V ~ 35V Serial 98.00mm x 60.00mm x 27.70mm [See More]
- Display Type: Alpha-Numeric
- Number of Characters: 20
- Number of Rows: 4
- Character Width: 2