LTS-5701AY Equivalent & Substitute Parts

Part Overview

The LTS-5701AY is a 0.56" yellow 7-segment LED display module manufactured by Lite-On Inc., configured as a single character common anode display in a 10-DIP package. This component is actively produced and widely used in numeric display applications requiring standard brightness and compact form factor. Substitute parts become necessary when addressing supply chain constraints, inventory availability, or specific performance requirements within the allowable electrical and mechanical parameter ranges for this display category.

Substiute Parts

LTS-5701AY

Lite-On Inc.In Stock: 1140LTS-5701AY Datasheet

Current PartRFQ

HDSP-5701

Broadcom LimitedIn Stock: 3736HDSP-5701 Datasheet

MFR RecommendedRFQ

SA56-11YWA

KingbrightIn Stock: 2451SA56-11YWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LTS-5701AY is determined by strict equivalence across the following critical parameters:

• Display Configuration: 7-segment, single character, common anode topology
• Electrical Specifications: Forward voltage 2.1V typical, test current 20mA
• Physical Package: 10-DIP (0.600", 15.24mm) footprint
• Digit Size: 0.56" (14.22mm) character height
• Color: Yellow LED emission
• Compliance: ROHS3 compliant, MSL 1 rating

The identified substitute parts HDSP-5701 (Broadcom Limited) and SA56-11YWA (Kingbright) meet all core electrical and mechanical requirements. Variations in millicandela rating, wavelength peak, power dissipation, and physical dimensions within tolerance ranges do not preclude functional substitution in standard applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and full ROHS3 compliance with MSL 1 rating, confirming suitability for standard industrial and commercial applications without moisture sensitivity constraints.

HDSP-5701 (Broadcom Limited) is the manufacturer-recommended primary substitute. It provides direct electrical equivalence with identical forward voltage and test current specifications. The reduced millicandela rating (1.8mcd versus 2.4mcd) results in lower brightness output; this is acceptable in applications where display visibility is not brightness-critical. The slightly increased maximum power dissipation (80mW versus 60mW) remains within typical circuit design margins for 10-DIP LED displays.

SA56-11YWA (Kingbright) is the secondary substitute option. It delivers higher brightness (6.5mcd) compared to the LTS-5701AY, making it suitable for applications requiring enhanced visibility. Physical dimensions are marginally larger (0.750" H x 0.500" W versus 0.673" H x 0.488" W), which may require verification of PCB layout clearances in space-constrained designs. Maximum power dissipation (75mW) remains within acceptable ranges.

Selection between substitutes depends on brightness requirements and available PCB space. Both maintain full electrical compatibility with the LTS-5701AY in standard 10-DIP socket applications.

Frequently Asked Questions (FAQ)

Q: Can HDSP-5701 and SA56-11YWA be used interchangeably with LTS-5701AY in the same circuit?

A: Both substitutes are electrically compatible with identical forward voltage (2.1V) and test current (20mA) specifications. Pin configuration and 10-DIP package footprint are identical. Brightness differences and minor physical dimension variations do not affect electrical substitution. Verify PCB layout clearances for SA56-11YWA due to slightly larger housing dimensions.

Q: What is the significance of the millicandela rating differences?

A: Millicandela rating indicates LED brightness output. HDSP-5701 (1.8mcd) produces lower brightness than LTS-5701AY (2.4mcd), while SA56-11YWA (6.5mcd) produces significantly higher brightness. Selection depends on application visibility requirements. Lower brightness reduces power consumption and heat generation; higher brightness improves visibility in bright ambient conditions.

Q: Are there packaging differences between these parts?

A: LTS-5701AY and SA56-11YWA are supplied in tube packaging; HDSP-5701 is supplied in bulk packaging. This affects handling and storage but does not impact electrical or mechanical compatibility. All three use identical 10-DIP (0.600", 15.24mm) package footprint.

Q: Do all three parts meet the same compliance standards?

A: All three parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All maintain active production status. Compliance certifications are equivalent across all three options.

Q: What are the physical dimension tolerances for PCB layout?

A: LTS-5701AY: 0.673" H x 0.488" W x 0.315" D; HDSP-5701: 0.673" H x 0.495" W x 0.315" D; SA56-11YWA: 0.750" H x 0.500" W x 0.315" D. Verify PCB mounting hole spacing and clearances, particularly for SA56-11YWA which has the largest height dimension.