LTS-5301AP 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LTS-5301AP is a single-character red 7-segment LED display module manufactured by Lite-On Inc., designed for numeric and alphanumeric display applications. This common anode configuration operates at 2.1V forward voltage with a 20mA test current, housed in a standard 10-DIP package measuring 0.673" H × 0.488" W × 0.315" D. The product is currently active and ROHS3 compliant. Substitute parts may be required due to inventory availability, manufacturing discontinuation, or specific application performance requirements while maintaining package and functional compatibility.

Substiute Parts

LTS-5301AP

Lite-On Inc.In Stock: 915LTS-5301AP Datasheet

Current PartRFQ

HDSP-5551

Broadcom LimitedIn Stock: 3468HDSP-5551 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTS-5301AP is determined by the following critical parameters:

• Display Configuration: Single-character, 7-segment, common anode topology
• Physical Compatibility: 0.56" digit size and 10-DIP package footprint
• Electrical Interface: Common anode pin arrangement and DIP pin spacing (0.600", 15.24mm)
• Color and Wavelength: Red LED emission
• Compliance: ROHS3 compliance and MSL rating

The HDSP-5551 manufactured by Broadcom Limited meets all substitution criteria. Both parts share identical display type, character count, digit size, common anode configuration, color specification, and 10-DIP package geometry. Electrical parameters (forward voltage and test current) differ within acceptable operational ranges for typical display applications, and both maintain ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the LTS-5301AP and HDSP-5551 are active products with ROHS3 compliance and MSL rating of 1 (Unlimited), indicating equivalent regulatory and environmental qualification status. Selection between these parts should be based on application-specific electrical requirements and inventory availability. The LTS-5301AP operates at higher forward voltage (2.1V) and test current (20mA) with lower brightness (0.95mcd), while the HDSP-5551 operates at lower forward voltage (1.7V) and test current (5mA) with higher brightness (1.48mcd). Both parts maintain identical mechanical compatibility and common anode configuration, ensuring direct substitution in 10-DIP socket applications without circuit board modification.

Frequently Asked Questions (FAQ)

Q: Can the HDSP-5551 directly replace the LTS-5301AP in existing designs?

A: Yes. Both parts share identical 10-DIP package geometry, common anode pin configuration, 0.56" digit size, and 7-segment display topology. Direct socket substitution is mechanically and functionally compatible.

Q: What are the electrical differences between these parts?

A: The HDSP-5551 operates at lower forward voltage (1.7V vs. 2.1V) and lower test current (5mA vs. 20mA), resulting in reduced power dissipation per segment. The HDSP-5551 provides higher brightness (1.48mcd vs. 0.95mcd) at lower current levels.

Q: Are there wavelength differences?

A: Yes. The LTS-5301AP emits at 697nm (standard red), while the HDSP-5551 emits at 635nm (pure red). Both are red LED displays; the wavelength difference reflects different phosphor compositions and may result in slightly different color perception.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LTS-5301AP and HDSP-5551 are ROHS3 compliant with MSL rating of 1 (Unlimited), indicating equivalent environmental and regulatory qualification.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. The HDSP-5551 offers lower power consumption and higher brightness, making it suitable for battery-powered or brightness-critical applications. The LTS-5301AP may be preferred if existing driver circuits are optimized for 2.1V forward voltage and 20mA current levels.