ULCD-43DT Equivalent & Substitute Parts Reference

Part Overview

The ULCD-43DT is a 4.3-inch resistive graphic LCD display module manufactured by 4D Systems Pty Ltd. It features a transmissive TFT color display with 480 x 272 pixel resolution, TTL interface, and LED white backlight. The product is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for legacy system maintenance, repair operations, and continued support of existing installations.

Substiute Parts

ULCD-43DT

4D Systems Pty LtdIn Stock: 1040ULCD-43DT Datasheet

Current PartRFQ

GEN4-ULCD-43DT

4D Systems Pty LtdIn Stock: 715GEN4-ULCD-43DT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The GEN4-ULCD-43DT qualifies as a direct substitute based on the following critical parameters:

Matching Parameters:

• Diagonal screen size: 4.3" (109.22mm)
• Display type: TFT - Color
• Display mode: Transmissive
• Touchscreen type: Resistive
• Dot pixels: 480 x 272
• Graphics color: Red, Green, Blue (RGB)
• Backlight: LED - White
• Viewing area: 95.04mm W x 53.86mm H
• RoHS compliance: ROHS3 Compliant

Interface Compatibility: The ULCD-43DT operates exclusively on TTL interface. The GEN4-ULCD-43DT supports TTL in addition to I2C and SPI interfaces, making it backward compatible with existing TTL-based implementations.

Dot Pitch Variance: The ULCD-43DT has a dot pitch of 0.07mm W x 0.20mm H, while the GEN4-ULCD-43DT has 0.20mm W x 0.20mm H. Both configurations maintain the same 480 x 272 pixel resolution across the identical 95.04mm x 53.86mm viewing area.

Parameter Comparison

Engineering Selection Recommendations

The GEN4-ULCD-43DT is the designated substitute for the ULCD-43DT based on functional equivalence and regulatory compliance. Both modules maintain identical display specifications, resolution, and physical dimensions. The GEN4-ULCD-43DT carries Active product status, ensuring continued availability and support, whereas the ULCD-43DT is classified as Not For New Designs.

Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for electronic component deployment. The GEN4-ULCD-43DT's expanded interface support (I2C, SPI, TTL) provides additional flexibility while maintaining full backward compatibility with TTL-only implementations.

Frequently Asked Questions (FAQ)

Q: Can the GEN4-ULCD-43DT directly replace the ULCD-43DT in existing TTL-based systems?

A: Yes. The GEN4-ULCD-43DT supports TTL interface operation identical to the ULCD-43DT. Physical dimensions, viewing area, pixel resolution, and display characteristics are equivalent. TTL-based implementations require no modification.

Q: What is the significance of the dot pitch difference between these modules?

A: Both modules maintain 480 x 272 pixel resolution across the same 95.04mm x 53.86mm viewing area. The dot pitch variance reflects different pixel arrangement methods but does not affect display resolution, viewing area, or visual output characteristics.

Q: Are there packaging or mechanical compatibility concerns?

A: Both modules are supplied in Box packaging. Verify mechanical mounting specifications and connector pinout compatibility with your specific application before implementation.

Q: Why is the ULCD-43DT classified as Not For New Designs?

A: This classification indicates the product has reached end-of-life status. The GEN4-ULCD-43DT, with Active product status, is the recommended choice for new implementations and ongoing system support.

Q: Do both modules meet current regulatory requirements?

A: Yes. Both the ULCD-43DT and GEN4-ULCD-43DT are ROHS3 compliant and REACH Unaffected, meeting current regulatory standards for electronic component deployment.