LTS-6660E 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LTS-6660E is a single-character 7-segment LED display module manufactured by Lite-On Inc., featuring a 0.56" orange-red display in a 10-DIP package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The display operates at 2V forward voltage with 20mA test current and is suitable for numeric and alphanumeric applications requiring common anode configuration.

Substiute Parts

LTS-6660E

Lite-On Inc.In Stock: 1079LTS-6660E Datasheet

Current PartRFQ

LTS-6960HR

Lite-On Inc.In Stock: 4944LTS-6960HR Datasheet

DirectRFQ

SA56-11EWA

KingbrightIn Stock: 3507SA56-11EWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LTS-6660E is determined by the following critical parameters that must remain consistent:

• Display Type & Configuration: 7-segment, single character, common anode
• Digit Size: 0.56" (14.22mm)
• Electrical Specifications: 2V forward voltage, 20mA test current
• Package Type: 10-DIP (0.600", 15.24mm)
• Physical Envelope: Compatible with 0.750" H x 0.496" W x 0.315" D mounting space

The substitute parts identified maintain these core parameters. Variations in color (orange-red to red), wavelength, and brightness (millicandela rating) are acceptable within the functional constraints of 7-segment display applications, provided the electrical and mechanical interfaces remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

LTS-6960HR (Lite-On Inc.) is the primary substitute for the LTS-6660E. Both components are manufactured by Lite-On Inc. and share identical electrical specifications, package configuration, and physical dimensions. The LTS-6960HR is currently in active production status and carries ROHS3 compliance certification, addressing regulatory requirements for new designs. The color shift from orange-red to red and the wavelength change from 630nm to 635nm represent acceptable variations within the 7-segment display category.

SA56-11EWA (Kingbright) serves as an alternative substitute manufactured by Kingbright. This component maintains all critical electrical and mechanical parameters, including 2V forward voltage, 20mA test current, 10-DIP package, and common anode configuration. The SA56-11EWA features a higher millicandela rating (6.4mcd versus 2.4mcd) and operates at a slightly different peak wavelength (627nm). Physical dimensions show a minor width variation (0.500" versus 0.496"), which remains within typical PCB layout tolerances. The SA56-11EWA is ROHS3 compliant and currently in active production.

Both substitute parts are suitable for direct replacement in applications where the LTS-6660E is specified, provided the design accommodates the noted parameter variations.

Frequently Asked Questions (FAQ)

Q: Can the LTS-6960HR directly replace the LTS-6660E without circuit modifications?

A: Yes. The LTS-6960HR maintains identical electrical specifications (2V forward voltage, 20mA test current) and package configuration (10-DIP). The color change from orange-red to red and wavelength shift from 630nm to 635nm do not require circuit modifications, though visual appearance will differ.

Q: What is the significance of the millicandela rating difference between LTS-6960HR and SA56-11EWA?

A: The SA56-11EWA provides higher brightness (6.4mcd) compared to both the LTS-6660E and LTS-6960HR (2.4mcd each). This increased brightness may be advantageous in high-ambient-light environments but does not affect electrical compatibility or circuit operation.

Q: Are there physical mounting differences between these three parts?

A: The LTS-6660E and LTS-6960HR share identical physical dimensions (0.750" H x 0.496" W x 0.315" D). The SA56-11EWA has a width of 0.500" instead of 0.496", a 0.004" difference that typically does not impact PCB layout or mechanical assembly.

Q: What compliance certifications apply to the substitute parts?

A: Both LTS-6960HR and SA56-11EWA are ROHS3 compliant. The SA56-11EWA is REACH unaffected, while the LTS-6960HR is REACH affected. Both components carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Why is the LTS-6660E listed as obsolete?

A: The LTS-6660E is no longer in active production. The LTS-6960HR and SA56-11EWA represent current-generation alternatives that maintain functional compatibility while offering active production status and modern compliance certifications.