40x4 Sunlight Readable Character LCD Display

Part Number: CFAH4004A1-YYH-JT

This yellow-green 40-character by 4-row display is a great choice for quickly integrating a display that can convey a lot of information.

Thanks to the transflective polarizer, this display is sunlight readable..

  • Available in several variations of backlight and polarizer (minimum order may be required)
  • 8-bit or 4-bit parallel interface
  • Industry-standard HD44780 compatible controller

Part Number:
CFA - Crystalfontz America
H- Character display
4004 - 40x4
A1 - Family and Revision (replaces CFAH4004A-YYH-JT)
Y - Yellow LED Backlight
Y - STN Positive, Yellow Green
H - Transflective, 6:00 viewing direction, -2°C to +70°C operating temperatures
JT - English and Japanese Character Font Table

  • square_foot Physical Characteristics

    Physical Characteristics

    Characters x Lines 40 x 4
    Module Overall width height depth
    millimeters 190 54 13.6
    inches 7.48 2.13 0.54
    Viewing Area Width Height
    millimeters 147 29.5
    inches 5.79 1.16
    Active Area Width Height
    millimeters 140.45 23.16
    inches 5.53 0.91
    Character Size Width Height
    millimeters 2.78 4.89
    inches 0.109 0.193
    Character Pitch Width Height
    millimeters 3.53 6.09
    inches 0.139 0.240
    Weight 130g
    Pin Count 18
  • visibility Optical Characteristics

    Optical Characteristics

    Glass Type STN
    Polarizer Transflective
    View Direction 6 o'clock
    Sunlight Readable Yes
    Backlight Color Yellow-Green
    Backlight Type LED
    Mode Positive
    Foreground Color Dark
    Background Color Yellow-Green
  • electric_bolt Electrical Specification

    Electrical Specifications

    Supply Voltage for Logic Minimum 4.5V
    Supply Voltage for Logic Maximum 5.5V
    Supply Voltage for Logic Typical 5V
    Supply Voltage for Driving Panel Typical 4.35V
    Supply Current Minimum 1.8mA
    Supply Current Maximum 7mA
    Supply Current Typical 3.5mA
  • electric_bolt Backlight Specification

    Backlight Electrical Specifications

    Forward Voltage Minimum 3.85V
    Forward Voltage Maximum 4.35V
    Forward Voltage Typical 4.2V
    Forward Current Minimum 300mA
    Forward Current Maximum 720mA
    Forward Current Typical 600mA
  • nature Enviromental


    Operating Temperatures min max
    Celsius -20° 70°
    Fahrenheit -4° 158°
    Storage Temperatures min max
    Celsius -30° 80°
    Fahrenheit -22° 176°
  • cable Electronics


    Controller Documents Sitronix ST7066U
    Dot Matrix LCD Controller/Driver
    Sitronix ST7066U

    Sitronix ST7066U
    Dot Matrix LCD Controller/Driver
    Interface 4-bit Parallel, 8-bit Parallel
  • picture_as_pdf Datasheets
  • download Files and Downloads
  • assured_workload Compliance Documents

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Quantity Price
1 $42.06
5 $38.82
10 $34.20
20 $33.19
50 $31.98
100 $31.58
200 $31.38
300 $29.61
500 * $29.42
1000 * $27.88
* Pricing is subject to change. Contact us about potential lead times.
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Part Change Notice

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  • text_snippet
    Part Change Notice #11255: 40x4 Sunlight Readable Character LCD Display is now available
    New Product: CFAH4004A1-YYH-JT
    Date Issued: February 12, 2024
    Summary: 40x4 Sunlight Readable Character LCD Display is now available
    Description: CFAH4004A1-YYH-JT has been released on our website ( and is now available for sale. Orders can be placed directly from our website or by submitting a purchase order to Contact for any technical questions.

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