Request Quote
(Ships tomorrow)
ULCD-43D Equivalent & Substitute Parts
Part Overview
The ULCD-43D is a Graphic LCD Display Module manufactured by 4D Systems Pty Ltd, featuring a 4.3" transmissive TFT color display with 480 x 272 pixel resolution and TTL interface. This module is classified as Not For New Designs, indicating it has reached end-of-life status. For new applications requiring equivalent display functionality, substitute parts with active product status and expanded interface options are available.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Diagonal Screen Size | 4.3" (109.22mm) |
| Display Resolution | 480 x 272 pixels |
| Display Type | TFT - Color |
| Display Mode | Transmissive |
| Graphics Color | Red, Green, Blue (RGB) |
| Backlight | LED - White |
| Interface | TTL |
| Viewing Area | 95.04mm W x 53.86mm H |
| RoHS Status | ROHS3 Compliant |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
The GEN4-ULCD-43D qualifies as a direct substitute based on the following alignment of critical parameters:
- Display Specifications: Identical 4.3" diagonal screen size, 480 x 272 pixel resolution, TFT color transmissive technology, and RGB graphics capability
- Physical Dimensions: Matching viewing area of 95.04mm W x 53.86mm H
- Backlight: Identical LED white backlight configuration
- Compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status
- Interface Compatibility: The substitute supports TTL interface (matching the original) plus additional I2C and SPI options for enhanced design flexibility
- Packaging: Both supplied in Box packaging format
The primary distinction is product status: the ULCD-43D is Not For New Designs, while the GEN4-ULCD-43D maintains Active status, making it the recommended selection for ongoing production and new development.
Parameter Comparison
| Parameter | ULCD-43D | GEN4-ULCD-43D |
|---|---|---|
| Manufacturer | 4D Systems Pty Ltd | 4D Systems Pty Ltd |
| Diagonal Screen Size | 4.3" (109.22mm) | 4.3" (109.22mm) |
| Display Resolution | 480 x 272 | 480 x 272 |
| Display Type | TFT - Color | TFT - Color |
| Display Mode | Transmissive | Transmissive |
| Graphics Color | Red, Green, Blue (RGB) | Red, Green, Blue (RGB) |
| Backlight | LED - White | LED - White |
| Interface | TTL | I2C, SPI, TTL |
| Viewing Area | 95.04mm W x 53.86mm H | 95.04mm W x 53.86mm H |
| Dot Pitch | 0.07mm W x 0.20mm H | 0.20mm W x 0.20mm H |
| Product Status | Not For New Designs | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
For applications currently using the ULCD-43D, transition to the GEN4-ULCD-43D is recommended based on the following engineering criteria:
- Product Lifecycle: The ULCD-43D carries Not For New Designs status, restricting its use in new development. The GEN4-ULCD-43D maintains Active status, ensuring continued availability and support.
- Regulatory Compliance: Both parts maintain identical ROHS3 and REACH compliance certifications, satisfying regulatory requirements without modification.
- Interface Flexibility: The GEN4-ULCD-43D supports TTL, I2C, and SPI interfaces, providing design flexibility beyond the TTL-only capability of the original part. Existing TTL implementations remain fully compatible.
- Physical Compatibility: Identical viewing area and screen dimensions ensure mechanical fit in existing enclosures and mounting structures.
Frequently Asked Questions (FAQ)
Q: Can the GEN4-ULCD-43D directly replace the ULCD-43D in existing designs?
A: Yes. Both parts share identical display specifications (4.3" diagonal, 480 x 272 resolution, TFT color transmissive), viewing area dimensions, and TTL interface support. The substitute maintains full backward compatibility for TTL-based implementations.
Q: What is the significance of the dot pitch difference between these parts?
A: The dot pitch values (0.07mm W x 0.20mm H for ULCD-43D versus 0.20mm W x 0.20mm H for GEN4-ULCD-43D) represent pixel spacing. Both configurations deliver the same 480 x 272 resolution across the identical 95.04mm x 53.86mm viewing area, resulting in equivalent visual performance.
Q: Are there compliance differences between the two parts?
A: No. Both the ULCD-43D and GEN4-ULCD-43D maintain identical ROHS3 compliance and REACH Unaffected status. No compliance modifications are required when transitioning between these parts.
Q: What additional interfaces does the GEN4-ULCD-43D provide?
A: The GEN4-ULCD-43D supports I2C and SPI interfaces in addition to TTL. These additional options enable alternative communication protocols for new designs, while TTL compatibility ensures existing implementations function without modification.
Q: Why is the ULCD-43D marked as Not For New Designs?
A: This designation indicates the part has reached end-of-life status and is no longer recommended for new product development. The GEN4-ULCD-43D, with Active status, is the current production equivalent and should be specified for all new applications.
Q: Are the packaging formats identical?
A: Yes. Both parts are supplied in Box packaging format, maintaining consistent handling and storage requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts