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Intelligent Character VFD

Our vacuum fluorescent displays (VFDs) have a longer life and are the brightest of displays. They do not suffer from performance effects due to varying temperature and they deliver a high viewing angle. Control of modules has been simplified to a set of commands delivered via RS232, RS422, I2C or USB communication. Optional VFD Filters available to customize your display to coordinate with your application.

VK202-25-USB (Front)
VK202-25-USB (Back)
Interface specifications for Character VFDs Series
Part NumberRS232TTLI2CRS422USB
Size specifications for Character VFDs Series
Part NumberCharacter x LinesModule Size (mm)
Active Area (mm)
Character Size (mm)
VFD2041 20 x 4 98.00 x 60.00 x 30.50 70.80 x 20.90 2.40 x 4.70
VK162-12 16 x 2 80.00 x 36.00 x 28.80 51.40 x 11.40 2.275 x 4.759
VK202-25 20 x 2 116.00 x 37.00 x 29.00 70.80 x 11.60 2.40 x 4.70
VK204-25 20 x 4 98.00 x 60.00 x 30.50 70.80 x 20.90 2.40 x 4.70
Voltage specifications for Character VFDs Series
Features for Character VFDs Series
Part NumberGPOKeypadDallas One Wire
VFD2041 3    
VK162-12 7 12 USB/Custom
VK202-25 6 25 USB/Custom
VK204-25 6 25 USB/Custom
  • Filters

    BLU202  Blue Filter for 20x2 VFDs

    GRN202  Green Filter for 20x2 VFDs

    GRY202  Gray Filter for 20x2 VFDs

    RED202  Red Filter for 20x2 VFDs

  • Voltage/Temperature

    E  Extended Temperature (-20C to 70C Operation)

    V  Wide Voltage (9V-15V) 

    VS  Standard Voltage (5.0V)

    VPT  Wide Voltage with Efficient Switching Power Supply (9V-35V)

  • Interfaces

    I2C  Inter-integrated circuit protocol uses clock and data lines to communicate short distances at slow speeds from a master to up to 128 addressable slave devices. A display is a slave device.

    RS232  Recommended standard 232, a common serial protocol. Logic levels can be as high as +/-30V, a high level is negative, a low is positive.

    RS422  Recommended standard 422, a more robust differential pair serial protocol.

    TTL  Transistor-transistor logic applied to serial protocol. Low level is 0V while high logic is 5V.

    USB  Universal Serial Bus protocol widely used in PCs.

  • Features

    Dallas One-Wire  One Wire interface for connecting devices using Dallas Semiconductor protocol, such as the DS18S20 temperature probe.

    GPO  General Purpose Outputs for switching external circuitry and devices.

    Keypad  Matrix style keypad input.