LTS-547AJD 7-Segment LED Display Equivalent & Substitute Parts

Part Overview

The LTS-547AJD is a single-character red 7-segment LED display module manufactured by Lite-On Inc. in a 10-DIP package configuration. This component is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. The LTS-547AJD serves as a standard numeric display element in industrial control panels, test equipment, and consumer electronics requiring visual feedback. Substitute parts become necessary when addressing component availability, lead time constraints, or specific performance requirements within the defined electrical and mechanical compatibility envelope.

Substiute Parts

LTS-547AJD

Lite-On Inc.In Stock: 1034LTS-547AJD Datasheet

Current PartRFQ

SC52-11SURKWA

KingbrightIn Stock: 1940SC52-11SURKWA Datasheet

MFR RecommendedRFQ

SC56-11SURKWA

KingbrightIn Stock: 2377SC56-11SURKWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTS-547AJD is determined by strict adherence to the following parameters:

Mandatory Compatibility Criteria:

• Display Type: 7-Segment (single character only)
• Common Pin Configuration: Common Cathode
• Color: Red
• Package / Case: 10-DIP (0.600", 15.24mm)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Digit/Alpha Size: 0.52" ± tolerance (substitute parts may vary within 0.52" to 0.56" range)
• Voltage - Forward (Vf): 1.85V to 2.1V (within typical operating range)
• Current - Test: 10mA to 20mA (within standard LED operating envelope)
• Wavelength - Peak: 645nm to 650nm (red spectrum consistency)
• Millicandela Rating: 0.7mcd to 110mcd (brightness variation acceptable for equivalent function)

The substitute parts SC52-11SURKWA and SC56-11SURKWA meet all mandatory criteria while operating within allowable electrical and mechanical tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status and full RoHS3 compliance, ensuring regulatory alignment with the original LTS-547AJD specification.

SC52-11SURKWA Selection Criteria: This substitute maintains identical digit size (0.52") and 10-DIP package footprint. The forward voltage is reduced to 1.85V with test current of 10mA, resulting in lower power consumption. Millicandela rating increases to 110mcd, providing enhanced brightness output. Wavelength peak shifts to 645nm, remaining within the red spectrum. This configuration is suitable for applications where reduced power dissipation and increased brightness are compatible with circuit design parameters.

SC56-11SURKWA Selection Criteria: This substitute features a larger digit size (0.56") while maintaining the 10-DIP package footprint. Forward voltage is 1.95V with test current of 20mA, matching the original current specification. Millicandela rating is 97mcd with power dissipation of 75mW. Wavelength peak is 645nm. This configuration is suitable for applications requiring larger character visibility while maintaining similar electrical operating parameters to the original part.

All substitute parts carry REACH Unaffected status where specified, confirming compliance with chemical substance regulations.

Frequently Asked Questions (FAQ)

Q: Can SC52-11SURKWA and SC56-11SURKWA be used interchangeably with LTS-547AJD?

A: Both parts are electrically and mechanically compatible as direct substitutes. The primary difference is digit size: SC52-11SURKWA maintains 0.52" size matching the original, while SC56-11SURKWA increases to 0.56". All three parts share identical 10-DIP package dimensions, common cathode configuration, and red color specification. Selection depends on visual display requirements and circuit current capacity.

Q: What are the electrical differences between these parts?

A: LTS-547AJD operates at 2.1V forward voltage with 20mA test current. SC52-11SURKWA reduces this to 1.85V and 10mA, lowering power consumption. SC56-11SURKWA operates at 1.95V with 20mA, closely matching the original current draw. All three parts function within standard red LED operating ranges. Circuit design must accommodate the specific voltage and current requirements of the selected substitute.

Q: Are there brightness differences?

A: Yes. LTS-547AJD provides 0.7mcd brightness. SC52-11SURKWA delivers 110mcd, and SC56-11SURKWA delivers 97mcd. Both substitutes provide significantly higher brightness output. Applications sensitive to display intensity should account for this difference in circuit design or optical filtering.

Q: Do all parts use the same 10-DIP package?

A: Yes. All three parts use 10-DIP (0.600", 15.24mm) package configuration, ensuring identical PCB footprint and pin spacing. Physical board-level compatibility is maintained across all three options.

Q: Are there compliance or regulatory differences?

A: All three parts are ROHS3 compliant with MSL rating of 1 (Unlimited). SC52-11SURKWA and SC56-11SURKWA carry REACH Unaffected status. No regulatory barriers exist for substitution in applications requiring these certifications.

Q: Which substitute should be selected for new designs?

A: Selection is based on specific application requirements. Choose SC52-11SURKWA for reduced power consumption with maintained digit size. Choose SC56-11SURKWA for larger character visibility with moderate power consumption. Both are active products with established supply availability.