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

Part Overview

The LA-601VB is a single-character red 7-segment LED display module manufactured by Rohm Semiconductor. This common anode display is designed for numeric and alphanumeric applications requiring compact form factor and standard DIP packaging. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to address inventory availability, performance optimization, or specific application requirements while maintaining mechanical and electrical compatibility.

Substiute Parts

LA-601VB

Rohm SemiconductorIn Stock: 997LA-601VB Datasheet

Current PartRFQ

LA-601AB

Rohm SemiconductorIn Stock: 1144LA-601AB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LA-601VB is determined by strict equivalence across the following critical parameters:

• Package Type: Must be 10-DIP (0.400", 10.16mm) for PCB compatibility
• Display Configuration: Must be single-character, 7-segment, common anode
• Physical Dimensions: Must match 0.748" H x 0.492" W x 0.315" D (19.00mm x 12.50mm x 8.00mm)
• Digit Size: Must be 0.58" (14.60mm)
• Color: Must be red
• Electrical Ratings: Forward voltage, test current, and power dissipation must fall within acceptable operating ranges for the target application
• Compliance: Must maintain RoHS3 compliance and MSL 1 rating

The LA-601AB qualifies as a direct substitute based on identical package, display type, configuration, physical dimensions, and digit size. Variations in forward voltage (2.05V vs 2V), brightness (90mcd vs 14mcd), wavelength (626nm vs 650nm), and maximum power dissipation (65mW vs 60mW) remain within acceptable tolerance for common anode 7-segment display applications.

Parameter Comparison

Engineering Selection Recommendations

Both the LA-601VB and LA-601AB are active production parts with identical RoHS3 compliance and MSL 1 ratings. Selection between these parts should be based on application-specific requirements:

The LA-601VB operates at 2V forward voltage with 14mcd brightness and 650nm peak wavelength. The LA-601AB operates at 2.05V forward voltage with 90mcd brightness and 626nm peak wavelength. Both parts share identical package, pinout, and mechanical specifications, ensuring direct PCB compatibility.

Applications requiring lower forward voltage operation or specific wavelength characteristics may prefer the LA-601VB. Applications requiring higher brightness output may benefit from the LA-601AB. Both parts maintain full compliance with RoHS3 and REACH requirements.

Frequently Asked Questions (FAQ)

Q: Can LA-601AB be used as a direct replacement for LA-601VB on existing PCBs?

A: Yes. Both parts use identical 10-DIP packaging, pinout, and mechanical dimensions. No PCB modifications are required for substitution.

Q: What are the key differences between LA-601VB and LA-601AB?

A: The primary differences are forward voltage (2V vs 2.05V), brightness (14mcd vs 90mcd), wavelength (650nm vs 626nm), and maximum power dissipation (60mW vs 65mW). All other electrical and mechanical specifications are identical.

Q: Does the higher brightness of LA-601AB affect circuit design?

A: The higher brightness rating of LA-601AB does not require circuit modifications for standard applications. Both parts operate at the same test current (10mA) and use identical packaging. Circuit design should be validated for the specific application requirements.

Q: Are both parts suitable for high-temperature or moisture-sensitive environments?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations. Thermal performance should be evaluated based on specific application operating conditions and the maximum power dissipation ratings provided.

Q: What is the significance of the wavelength difference between these parts?

A: LA-601VB operates at 650nm (standard red), while LA-601AB operates at 626nm (orange-red). The wavelength difference may be perceptible in visual applications but does not affect electrical compatibility or circuit operation.