What Are the Differences Between SP14Q002-C1 and SP14Q003-C1

The SP14Q002-C1 and SP14Q003-C1 are both LCD display modules from Hitachi, primarily used in industrial applications.  Here, we’ll compare their features, specifications, and potential for substitution.

Common Features

Both SP14Q002-C1 and SP14Q003-C1 share several characteristics:

  • Display Size: Both modules have a 5.7-inch diagonal display.
  • Resolution: Each module supports a resolution of 320 x 240 pixels (QVGA).
  • Type: They are STN (Super Twisted Nematic) monochrome displays.
  • Backlight: Both utilize a CCFL (Cold Cathode Fluorescent Lamp) for backlighting.
  • Viewing Angle: Both displays offer a similar viewing angle typical for STN LCDs.
  • Operating Temperature: Both modules operate within a temperature range of 0°C to 50°C.
  • Storage Temperature: Both can be stored in temperatures ranging from -20°C to 60°C.

What Are the Differences Between SP14Q002-C1 and SP14Q003-C1


Despite their similarities, the SP14Q002-C1 and SP14Q003-C1 have distinct differences in their electrical and mechanical specifications:

  • Contrast Ratio: The SP14Q003-C1 typically has a higher contrast ratio compared to the SP14Q002-C1, providing better clarity and readability in various lighting conditions.
  • Brightness: The SP14Q003-C1 usually offers higher brightness levels, which can be crucial in environments with higher ambient light.
  • Power Consumption: There can be differences in power consumption due to variations in backlight efficiency and overall module design.
  • Connector Type: The physical connectors and pin configurations might differ, impacting how they interface with existing systems.
  • Mechanical Dimensions: There could be slight variations in the overall dimensions or mounting hole locations, affecting the ease of replacement in existing setups.

What Are the Differences Between SP14Q002-C1 and SP14Q003-C1

Detailed Specifications

Feature SP14Q002-C1 SP14Q003-C1
Display Size 5.7 inches 5.7 inches
Resolution 320 x 240 pixels (QVGA) 320 x 240 pixels (QVGA)
Display Type STN monochrome STN monochrome
Contrast Ratio Standard (Lower than SP14Q003-C1) Higher contrast
Brightness Standard (Lower than SP14Q003-C1) Higher brightness
Backlight CCFL CCFL
Viewing Angle Standard for STN Standard for STN
Operating Temperature 0°C to 50°C 0°C to 50°C
Storage Temperature -20°C to 60°C -20°C to 60°C
Power Consumption Lower (Depending on model) Higher (Depending on model)
Connector Type May differ May differ
Mechanical Dimensions Slight variations possible Slight variations possible


When considering whether the SP14Q002-C1 and SP14Q003-C1 can be used interchangeably, the following points should be evaluated:

  • Electrical Compatibility: Ensure that the power requirements and connector configurations match. Differences in power consumption and pinout configurations could necessitate hardware modifications.
  • Mechanical Fit: Verify that the dimensions and mounting holes align with the existing design. Slight differences in size or mounting could prevent a straightforward swap.
  • Performance Requirements: Assess if the performance characteristics such as brightness and contrast meet the application’s needs. If the SP14Q003-C1’s enhanced brightness and contrast are essential, replacing it with an SP14Q002-C1 might not be viable.

In conclusion, while the SP14Q002-C1 and SP14Q003-C1 share several fundamental attributes, the differences in brightness, contrast, and possibly mechanical and electrical specifications mean they are not always directly interchangeable. Careful consideration of these factors is necessary to determine if one can replace the other without compromising the functionality or reliability of the application.


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