LTS-546AY Equivalent & Substitute Parts

Part Overview

The LTS-546AY is a 7-segment LED display module manufactured by Lite-On Inc., featuring a single yellow character with common anode configuration in a 10-DIP package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The display operates at 2.1V forward voltage with a 20mA test current and provides 2.2mcd brightness output at a 585nm wavelength peak.

Substiute Parts

LTS-546AY

Lite-On Inc.In Stock: 1136LTS-546AY Datasheet

Current PartRFQ

XDUY13A

SunLEDIn Stock: 1124XDUY13A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LTS-546AY is determined by strict alignment of the following parameters:

• Display Type: 7-Segment configuration
• Number of Characters: Single character
• Common Pin Configuration: Common Anode
• Color: Yellow
• Package / Case: 10-DIP (0.600", 15.24mm)
• Digit/Alpha Size: 0.52" (13.21mm)

The XDUY13A from SunLED meets all these core substitution criteria. While variations exist in forward voltage (1.95V vs 2.1V), test current (10mA vs 20mA), brightness (2mcd vs 2.2mcd), and wavelength peak (590nm vs 585nm), these differences remain within acceptable operational ranges for 7-segment display applications. The physical package dimensions and electrical interface remain compatible.

Parameter Comparison

Engineering Selection Recommendations

The XDUY13A serves as the primary substitute for the obsolete LTS-546AY. The SunLED component maintains active product status, ensuring long-term availability and supply chain continuity. Both parts share identical package specifications, pin configurations, and display characteristics, enabling direct replacement in existing PCB layouts.

The XDUY13A carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution. The LTS-546AY lacks documented compliance certifications in the provided specifications.

Electrical parameter variations between the two parts are within acceptable tolerances for 7-segment display applications. The lower forward voltage and test current of the XDUY13A result in reduced power dissipation during operation, providing potential efficiency improvements in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the XDUY13A directly replace the LTS-546AY in existing designs?

A: Yes. Both components share identical 10-DIP package dimensions, common anode configuration, and 0.52" digit size. PCB footprints and pin assignments are compatible.

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

A: The XDUY13A operates at 1.95V forward voltage compared to the LTS-546AY at 2.1V. Test current is 10mA versus 20mA. These differences reflect manufacturing variations between Lite-On and SunLED but remain within acceptable operating ranges for 7-segment display circuits.

Q: Why is the LTS-546AY classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The XDUY13A provides an active alternative with equivalent functional specifications.

Q: Are there compliance differences between the two parts?

A: The XDUY13A is ROHS3 compliant and REACH unaffected. Compliance documentation for the LTS-546AY is not provided in the available specifications.

Q: What packaging options are available for the XDUY13A?

A: The XDUY13A is supplied in tube packaging, suitable for automated assembly and manual component handling.