LB-603VP 7-Segment Display - Equivalent & Substitute Parts

Part Overview

The LB-603VP is a red 7-segment LED display module manufactured by Rohm Semiconductor, designed for numeric and character display applications. This 3-character common cathode display operates at 2V forward voltage with 10mA test current and is housed in a 28-DIP package. The product is currently active and widely used in industrial control panels, instrumentation, and consumer electronics requiring compact alphanumeric display solutions. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when inventory constraints require component flexibility.

Substiute Parts

LB-603VP

Rohm SemiconductorIn Stock: 1311LB-603VP Datasheet

Current PartRFQ

LDT-C514RI

Lumex Opto/Components Inc.In Stock: 1711LDT-C514RI Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LB-603VP is determined by strict alignment of the following critical parameters:

• Display Configuration: 3-character, 7-segment, common cathode architecture
• Electrical Specifications: 2V forward voltage and 10mA test current
• Package Type: 28-DIP (0.600", 15.24mm) form factor
• Color: Red LED emission
• Digit Size: 0.56" nominal character height
• Compliance: ROHS3 compliance and active product status

The LDT-C514RI from Lumex Opto/Components Inc. meets all substitution criteria. Both parts share identical electrical operating parameters, package configuration, and display architecture, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the LB-603VP and LDT-C514RI are active products with full ROHS3 compliance and REACH unaffected status, making either suitable for new designs and existing applications. Selection between these parts should be based on availability, lead time, and inventory position. The LB-603VP is currently stocked at 1227 units, while the LDT-C514RI is available at 1647 units. Both parts meet identical electrical and mechanical specifications required for 28-DIP common cathode 7-segment display applications.

Frequently Asked Questions (FAQ)

Q: Can the LDT-C514RI directly replace the LB-603VP in existing designs?

A: Yes. Both parts share identical electrical specifications (2V forward voltage, 10mA test current), common cathode configuration, 28-DIP package footprint, and 0.56" digit size. No circuit modifications are required.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The LB-603VP measures 0.709" H x 1.476" W x 0.315" D (18.00mm x 37.50mm x 8.00mm), while the LDT-C514RI measures 0.748" H x 1.488" W x 0.315" D (19.00mm x 37.80mm x 8.00mm). Both fit the 28-DIP (0.600", 15.24mm) package specification and are mechanically compatible with standard DIP sockets.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the LB-603VP and LDT-C514RI are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the difference in brightness between these parts?

A: The LB-603VP has a millicandela rating of 16mcd at 650nm peak wavelength, while the LDT-C514RI has a rating of 5.6mcd at 635nm peak wavelength. These are provided specifications and should be considered for applications with specific brightness requirements.