LTC-4724Y Equivalent & Substitute Parts

Part Overview

The LTC-4724Y is a 7-segment LED display module manufactured by Lite-On Inc., featuring a 0.39" yellow character display in a 3-character common cathode configuration. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates at 2.1V forward voltage with a 20mA test current and is housed in a 15-DIP package with 12 leads.

Substiute Parts

LTC-4724Y

Lite-On Inc.In Stock: 1046LTC-4724Y Datasheet

Current PartRFQ

LTC-4724JS

Lite-On Inc.In Stock: 1136LTC-4724JS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTC-4724Y is determined by strict adherence to the following critical parameters:

• Display Configuration: 3-character, 7-segment, common cathode architecture
• Physical Compatibility: 0.39" character size with identical package footprint (15-DIP, 12 leads)
• Electrical Specifications: Forward voltage and test current ratings within acceptable operating ranges
• Color and Wavelength: Yellow emission spectrum (585nm nominal)
• Mechanical Envelope: Exact dimensional match (0.504" H x 1.182" W x 0.276" D)

The LTC-4724JS meets all substitution criteria as a direct replacement, maintaining identical mechanical and functional characteristics while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LTC-4724JS is the manufacturer-recommended substitute for the obsolete LTC-4724Y. Both components share identical mechanical packaging, pin configuration, and functional architecture, ensuring direct PCB compatibility without layout modifications.

The LTC-4724JS offers the following advantages:

• Active Product Status: Ensures long-term availability and supply chain continuity
• RoHS3 Compliance: Meets current environmental and regulatory requirements
• Reduced Power Dissipation: 40mW maximum versus 60mW, improving thermal efficiency
• Lower Forward Voltage: 2.05V typical operation reduces power supply stress

The LTC-4724JS exhibits lower luminous intensity (0.65mcd versus 2.2mcd) and a slightly longer peak wavelength (588nm versus 585nm). These differences remain within the yellow spectrum and are suitable for applications where the original part's brightness specifications are not critical design constraints.

Frequently Asked Questions (FAQ)

Q: Can the LTC-4724JS be used as a direct replacement for the LTC-4724Y without PCB modifications?

A: Yes. Both parts share identical 15-DIP package geometry, pin count, and lead spacing. No PCB layout changes are required for substitution.

Q: What are the key electrical differences between these parts?

A: The LTC-4724JS operates at 2.05V forward voltage compared to 2.1V for the LTC-4724Y, and exhibits lower luminous intensity (0.65mcd versus 2.2mcd). Both maintain 20mA test current specifications. The LTC-4724JS also consumes less power (40mW maximum versus 60mW).

Q: Is the LTC-4724JS suitable for brightness-critical applications?

A: The LTC-4724JS provides approximately 30% of the luminous intensity of the LTC-4724Y. Application suitability depends on specific brightness requirements. Designs requiring the original part's full brightness specification should evaluate alternative sources or brightness compensation through increased drive current within rated limits.

Q: What compliance certifications does the LTC-4724JS carry?

A: The LTC-4724JS is RoHS3 compliant. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity ratings and share identical ECCN and HTSUS classifications.

Q: Are there any wavelength differences that affect color perception?

A: The LTC-4724JS peak wavelength is 588nm compared to 585nm for the LTC-4724Y. Both wavelengths fall within the yellow spectrum and produce visually equivalent color output for standard display applications.