LTS-5003AJD 7-Segment Display Equivalent & Substitute Parts

Part Overview

The LTS-5003AJD 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 and is commonly used in numeric display applications requiring compact form factor and standard logic-level interfacing. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this display category.

Substiute Parts

LTS-5003AJD

Lite-On Inc.In Stock: 1086LTS-5003AJD Datasheet

Current PartRFQ

SC56-21EWA

KingbrightIn Stock: 1691SC56-21EWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTS-5003AJD is determined by the following critical parameters:

• Display Type & Configuration: Must be 7-segment LED, single character, common cathode
• Digit Size: 0.56" (14.22mm) nominal dimension
• Package: 10-DIP (0.600", 15.24mm) pin spacing
• Color: Red spectrum
• Electrical Compatibility: Forward voltage within acceptable operating range (2.0V–2.1V), test current 20mA
• Regulatory Compliance: ROHS3 compliant, active product status

The SC56-21EWA from Kingbright meets all substitution criteria within these parameter boundaries. Both parts share identical digit size, package configuration, common cathode topology, and regulatory compliance status. Electrical parameters remain within compatible operating ranges for standard logic-level driver circuits.

Parameter Comparison

Engineering Selection Recommendations

Both the LTS-5003AJD and SC56-21EWA are active products with ROHS3 compliance and identical mechanical compatibility. Selection between these parts is based on the following factors:

LTS-5003AJD (Lite-On): Primary choice when peak wavelength specification of 656nm is required. Forward voltage of 2.1V is suitable for standard 5V logic-level driver circuits with current-limiting resistors.

SC56-21EWA (Kingbright): Suitable alternative when 627nm wavelength is acceptable. Forward voltage of 2.0V provides slightly lower voltage drop. Both parts operate at identical test current (20mA) and share the same 10-DIP package footprint.

Pin-to-pin compatibility is confirmed for both parts in the 10-DIP configuration. No circuit redesign is required when substituting between these models in applications where wavelength tolerance permits the 29nm difference.

Frequently Asked Questions (FAQ)

Q: Are the LTS-5003AJD and SC56-21EWA pin-compatible?

A: Yes. Both parts use the 10-DIP (0.600", 15.24mm) package with identical pin spacing and common cathode configuration. Direct substitution on PCB layouts is possible without modification.

Q: What is the difference in wavelength between these parts?

A: The LTS-5003AJD has a peak wavelength of 656nm (standard red), while the SC56-21EWA is 627nm (orange-red). The 29nm difference may be perceptible in side-by-side comparison but both are classified as red spectrum displays.

Q: Can I use SC56-21EWA as a drop-in replacement for LTS-5003AJD?

A: Yes, provided your application does not have strict wavelength requirements. Both parts meet the same electrical specifications (20mA test current, common cathode configuration) and package requirements (10-DIP). Forward voltage differs by 0.1V (2.1V vs 2.0V), which is within standard driver circuit tolerance.

Q: Are both parts RoHS compliant?

A: Yes. Both LTS-5003AJD and SC56-21EWA are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the physical size difference between these displays?

A: The digit size is identical at 0.56" (14.22mm). Overall module dimensions differ slightly: LTS-5003AJD is 0.673" H × 0.488" W × 0.315" D, while SC56-21EWA is 0.750" H × 0.500" W × 0.315" D. These differences are minimal and do not affect standard 10-DIP socket compatibility.

Q: Which part should I select for new designs?

A: Both parts are active products suitable for new designs. Selection depends on wavelength requirements and manufacturer preference. Verify availability and lead times with your component supplier.