LTP-2057AE Equivalent & Substitute Parts

Part Overview

The LTP-2057AE is a 5 x 7 dot matrix display module manufactured by Lite-On Inc., featuring a common cathode row and common anode column configuration with orange-red color output. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The module operates at 2V forward voltage with a brightness rating of 4.8mcd and is housed in a compact 1.50" L x 2.09" W x 0.34" H form factor.

Substiute Parts

LTP-2057AE

Lite-On Inc.In Stock: 1098LTP-2057AE Datasheet

Current PartRFQ

TA20-11EWA

KingbrightIn Stock: 747TA20-11EWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTP-2057AE are identified based on the following critical parameters that determine functional compatibility:

• Configuration: 5 x 7 matrix layout
• Internal Connection: Common Cathode Row, Common Anode Column topology
• Voltage - Forward (Vf): 2V nominal operation
• Size / Dimension: Physical form factor 1.50" L x 2.09" W x 0.34" H (±0.01" tolerance acceptable)
• Moisture Sensitivity Level: MSL 1 (Unlimited)

The TA20-11EWA from Kingbright meets all these core substitution criteria. While the color shifts from orange-red to red and brightness increases from 4.8mcd to 10mcd, these parameters do not prevent functional substitution in applications where the display module serves as a direct replacement. The height dimension varies by 0.01" (8.50mm vs 8.60mm), which remains within acceptable mechanical tolerance for standard PCB mounting.

Parameter Comparison

Engineering Selection Recommendations

The TA20-11EWA from Kingbright is a direct functional substitute for the obsolete LTP-2057AE. Selection of this substitute is supported by:

• Product Status: The TA20-11EWA maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete LTP-2057AE.
• Compliance: Both components share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, maintaining regulatory consistency.
• RoHS Status: The TA20-11EWA is ROHS3 compliant, meeting modern environmental standards.
• REACH Status: The TA20-11EWA is REACH unaffected, confirming compliance with chemical substance regulations.
• Electrical Compatibility: Identical 2V forward voltage and MSL 1 rating ensure direct pin-compatible operation without circuit modification.
• Mechanical Compatibility: Dimensional alignment within 0.01" tolerance permits direct PCB mounting without redesign.

Frequently Asked Questions (FAQ)

Q: Can the TA20-11EWA replace the LTP-2057AE in existing designs without circuit modification?

A: Yes. Both components operate at 2V forward voltage with identical common cathode row and common anode column configuration. Pin-to-pin compatibility is maintained, and mechanical form factor differences (0.01" height variance) do not require PCB redesign.

Q: What is the difference in brightness between these two components?

A: The TA20-11EWA provides 10mcd brightness compared to the LTP-2057AE at 4.8mcd. This represents approximately 2x increased luminous intensity. Applications requiring specific brightness levels should account for this difference in circuit design.

Q: Does the color shift from orange-red to red affect compatibility?

A: Color is a visual characteristic that does not affect electrical or mechanical compatibility. Applications where color specification is critical should evaluate whether red output meets functional requirements. The shift from orange-red to red represents a wavelength change but maintains operation within the red spectrum.

Q: Are there any supply chain advantages to using the TA20-11EWA?

A: Yes. The TA20-11EWA is in active production status with 696 units in current inventory, whereas the LTP-2057AE is obsolete. This ensures sustained availability and reduces long-term supply risk.

Q: What is the moisture sensitivity level for both components?

A: Both the LTP-2057AE and TA20-11EWA carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage, handling, or assembly.