LA-601MB 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LA-601MB is a single-character green 7-segment LED display manufactured by Rohm Semiconductor, packaged in a 10-DIP configuration. This component is classified as an active product and is designed for numeric and alphanumeric display applications requiring common anode configuration. The need for equivalent and substitute parts arises from inventory availability, lead time considerations, or specific application requirements that may benefit from alternative electrical or mechanical characteristics within the same functional category.

Substiute Parts

LA-601MB

Rohm SemiconductorIn Stock: 1055LA-601MB Datasheet

Current PartRFQ

TDSG5150

Vishay Semiconductor Opto DivisionIn Stock: 1122TDSG5150 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LA-601MB is determined by the following critical parameters:

• Display Type & Configuration: Must be 7-segment, single character, common anode
• Package Type: Must be 10-DIP to ensure mechanical and electrical compatibility with existing PCB layouts
• Color: Must be green to maintain visual consistency in applications
• Electrical Characteristics: Forward voltage (Vf) and test current must be within acceptable operating ranges for the application circuit
• Compliance & Status: Must maintain ROHS3 compliance and active product status

The TDSG5150 from Vishay Semiconductor Opto Division qualifies as a substitute based on matching display type, configuration, package format, and color. Variations in forward voltage, test current, and physical dimensions are within acceptable tolerances for component substitution in this category.

Parameter Comparison

Engineering Selection Recommendations

Both the LA-601MB and TDSG5150 maintain active product status and full ROHS3 compliance, qualifying them for use in applications requiring regulatory adherence. The selection between these parts should be based on circuit design requirements:

The LA-601MB operates at a lower forward voltage (2.1V typical) and lower test current (10mA), making it suitable for applications with tighter power budgets or lower supply voltage constraints. Its higher brightness rating (22mcd) provides greater luminous intensity.

The TDSG5150 operates at a higher forward voltage (2.4V typical) and higher test current (20mA), with lower brightness (9.5mcd). The 10-DIP package pitch difference (0.400" versus 0.600") must be verified for PCB layout compatibility before substitution.

Both parts maintain identical moisture sensitivity levels and REACH compliance status, ensuring equivalent environmental performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the TDSG5150 be used as a direct replacement for the LA-601MB on existing PCBs?

A: Mechanical compatibility must be verified. The TDSG5150 uses a 10-DIP package with 0.600" pitch, while the LA-601MB uses 0.400" pitch. PCB footprints must accommodate the different pin spacing before substitution.

Q: What are the electrical differences between these two parts?

A: The TDSG5150 requires higher forward voltage (2.4V vs. 2.1V) and higher test current (20mA vs. 10mA). Circuit design must account for these differences in current-limiting resistor calculations and power supply requirements.

Q: Are both parts suitable for applications requiring RoHS compliance?

A: Yes. Both the LA-601MB and TDSG5150 are ROHS3 compliant and maintain REACH unaffected status, meeting regulatory requirements for restricted substance use.

Q: How do the brightness levels compare?

A: The LA-601MB provides 22mcd brightness, while the TDSG5150 provides 9.5mcd. Application visibility requirements should guide selection based on ambient lighting conditions and viewing distance.

Q: Are there differences in physical dimensions that affect installation?

A: Yes. The LA-601MB measures 0.748" H x 0.492" W x 0.315" D, while the TDSG5150 measures 0.689" H x 0.482" W x 0.252" D. The TDSG5150 is slightly smaller in height and depth. Additionally, the 10-DIP package pitch difference (0.400" vs. 0.600") affects PCB hole spacing.

Q: What is the wavelength difference between these displays?

A: Both parts emit green light with peak wavelengths of 563nm (LA-601MB) and 565nm (TDSG5150), representing negligible visual difference in color perception.

Q: Can both parts be used interchangeably in the same circuit without modification?

A: No. Circuit modifications are required due to differences in forward voltage and test current. Current-limiting resistor values must be recalculated, and PCB layout compatibility must be verified before substitution.