LDS-A5204RI Equivalent & Substitute Parts

Part Overview

The LDS-A5204RI is a single-character red 7-segment LED display module manufactured by Lumex Opto/Components Inc. This common anode display operates at 2V forward voltage with a 10mA test current and delivers 3mcd brightness at a 635nm wavelength. The device is housed in a 10-DIP package measuring 0.689" H × 0.488" W × 0.276" D (17.50mm × 12.40mm × 7.00mm) with a 0.52" digit height. The product maintains Active status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute components are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameter ranges for this display category.

Substiute Parts

LDS-A5204RI

Lumex Opto/Components Inc.In Stock: 899LDS-A5204RI Datasheet

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LAP-601VB

Rohm SemiconductorIn Stock: 913LAP-601VB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LDS-A5204RI are qualified based on the following criteria:

Functional Equivalence Parameters:

• Display type must be 7-Segment
• Single character configuration
• Common anode pin arrangement
• Red color specification
• 10-DIP package family

Electrical Compatibility Parameters:

• Forward voltage (Vf) within acceptable operating range for common anode red LED displays (1.9V to 2.0V typical)
• Test current at 10mA standard
• Wavelength in red spectrum (630nm to 660nm range)

Mechanical Compatibility Parameters:

• 10-DIP package footprint compatibility
• Digit height within display module category standards
• Physical dimensions permitting PCB layout substitution

Compliance Parameters:

• RoHS3 compliance required
• Active product status
• REACH unaffected classification

The LAP-601VB from Rohm Semiconductor meets these substitution criteria while maintaining functional equivalence within the specified parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

LDS-A5204RI Selection Criteria:

• Primary choice for applications requiring MSL 1 (unlimited moisture sensitivity)
• Suitable for standard brightness applications (3mcd)
• Lower power dissipation profile (112mW maximum)
• Established Lumex supply chain

LAP-601VB Selection Criteria:

• Alternative for applications tolerating MSL 3 (168-hour moisture sensitivity window)
• High brightness applications requiring 36mcd output
• Slightly lower forward voltage (1.9V vs 2V) reduces driver circuit power requirements
• Larger digit height (0.57" vs 0.52") for enhanced visibility
• Both parts maintain Active product status and full RoHS3 compliance

Compatibility Considerations:

• 10-DIP package footprint compatibility confirmed for both parts
• Forward voltage differential (0.1V) within common anode red LED display operating margins
• Wavelength variation (635nm to 650nm) within red spectrum specification
• Physical dimension differences require PCB layout verification for space-constrained applications

Frequently Asked Questions (FAQ)

Q: Can LAP-601VB directly replace LDS-A5204RI without circuit modification?

A: Both parts share common anode configuration, 10-DIP package family, and 10mA test current. The 0.1V forward voltage difference (2V vs 1.9V) falls within typical common anode red LED display operating tolerances. PCB layout verification is required due to physical dimension differences (0.748" H vs 0.689" H and 0.315" D vs 0.276" D).

Q: What is the significance of the MSL rating difference?

A: LDS-A5204RI carries MSL 1 (unlimited moisture sensitivity), while LAP-601VB carries MSL 3 (168-hour moisture sensitivity). MSL 3 requires component storage in controlled humidity environments and limits shelf life after packaging opening. Applications with extended storage or high-humidity environments should prioritize MSL 1 rated components.

Q: How do brightness differences affect substitution?

A: LAP-601VB delivers 36mcd compared to LDS-A5204RI's 3mcd at identical 10mA test current. Higher brightness may require circuit current limiting adjustments in brightness-sensitive applications. Lower brightness applications can utilize LAP-601VB without modification.

Q: Are there package footprint compatibility concerns?

A: Both parts use 10-DIP package family. LDS-A5204RI measures 0.585" (14.85mm) pitch, while LAP-601VB measures 0.600" (15.24mm) pitch. Standard 10-DIP PCB layouts accommodate both specifications. Physical height and depth differences require verification in space-constrained designs.

Q: Do both parts meet current compliance requirements?

A: Both LDS-A5204RI and LAP-601VB maintain ROHS3 compliance, REACH unaffected status, and Active product status. Compliance documentation is equivalent for both parts.

Q: What power dissipation differences should be considered?

A: LDS-A5204RI maximum power dissipation is 112mW, while LAP-601VB is 448mW. Thermal design and PCB heat dissipation planning must account for this 4× difference in high-density applications.