LTP-757Y LED Matrix 5x7 Yellow Dot Display - Equivalent & Substitute Parts

Part Overview

The LTP-757Y is a 5x7 dot matrix display module manufactured by Lite-On Inc., featuring a yellow LED configuration with common anode row and common cathode column internal connections. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. The module operates at a forward voltage of 2.1V with a brightness rating of 2mcd and is housed in a compact 0.50" L x 0.70" W x 0.25" H form factor.

Substiute Parts

LTP-757Y

Lite-On Inc.In Stock: 992LTP-757Y Datasheet

Current PartRFQ

LDM-07357NI

Lumex Opto/Components Inc.In Stock: 1169LDM-07357NI Datasheet

DirectRFQ

TC07-11YWA

KingbrightIn Stock: 1171TC07-11YWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTP-757Y are qualified based on strict electrical and mechanical compatibility criteria. The following parameters must match or remain within acceptable tolerances for direct substitution:

• Configuration: 5 x 7 dot matrix (exact match required)
• Color: Yellow (exact match required)
• Internal Connection: Common Anode Row, Common Cathode Column (exact match required)
• Voltage - Forward (Vf): 2.1V (exact match required)
• Size / Dimension: 0.50" L x 0.70" W x 0.25" H with minor tolerance variations acceptable
• Moisture Sensitivity Level (MSL): 1 (Unlimited) or equivalent

The substitute parts identified below satisfy all mandatory electrical and mechanical parameters. Millicandela rating variations are permissible as this parameter does not affect circuit compatibility or form factor fit.

Parameter Comparison

Engineering Selection Recommendations

Both LDM-07357NI (Lumex Opto/Components Inc.) and TC07-11YWA (Kingbright) are qualified substitutes for the obsolete LTP-757Y. Both substitute parts are classified as active products with current manufacturing support.

The LDM-07357NI provides the closest brightness match to the original LTP-757Y at 2.5mcd, with ROHS3 compliance and REACH unaffected status. Dimensional tolerance remains within acceptable limits for direct PCB mounting.

The TC07-11YWA offers increased brightness at 6.4mcd with ROHS3 compliance and REACH unaffected status. The height dimension is 6.40mm compared to the original 6.30mm, representing a 0.10mm variation that remains within standard manufacturing tolerances for this component category.

Both parts maintain identical electrical specifications (2.1V forward voltage), internal connection topology, and MSL rating, ensuring circuit-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can the LDM-07357NI or TC07-11YWA be used as direct replacements for the LTP-757Y without circuit modification?

A: Yes. Both substitute parts maintain identical forward voltage (2.1V), internal connection configuration (Common Anode Row, Common Cathode Column), and form factor specifications. No circuit redesign is required for substitution.

Q: What is the significance of the millicandela rating difference between the original and substitute parts?

A: Millicandela rating indicates brightness output. The LDM-07357NI (2.5mcd) and TC07-11YWA (6.4mcd) both exceed or match the original LTP-757Y (2mcd). Higher brightness does not affect electrical compatibility or circuit operation; it only increases display visibility.

Q: Are there dimensional differences that could affect PCB mounting?

A: Dimensional variations are minimal. The LDM-07357NI matches the original dimensions exactly. The TC07-11YWA height is 6.40mm versus the original 6.30mm, a 0.10mm difference within standard manufacturing tolerance. Both parts fit standard 0.50" x 0.70" footprints without modification.

Q: What compliance certifications apply to the substitute parts?

A: Both LDM-07357NI and TC07-11YWA are ROHS3 compliant and REACH unaffected. The original LTP-757Y compliance status was not specified in available documentation.

Q: Why is the LTP-757Y classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitute parts from Lumex and Kingbright ensure continued design support and component availability for applications requiring 5x7 yellow dot matrix displays with common anode/cathode configuration.