ARJ11B-MASAR-LU2 Equivalent & Substitute Parts

Part Overview

The ARJ11B-MASAR-LU2 is a 1 Port RJ45 Through Hole modular connector manufactured by Abracon LLC, designed for 10/100 Base-T Ethernet applications with AutoMDIX capability. This connector features a 90° right-angle orientation, solder termination, and board lock functionality. The part is Active in product status with 886 units currently in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to supply constraints, design flexibility, or manufacturing preferences while maintaining full functional compatibility.

Substiute Parts

ARJ11B-MASAR-LU2

Abracon LLCIn Stock: 951ARJ11B-MASAR-LU2 Datasheet

Current PartRFQ

A63-113-300P422

Mercury United Electronics, Inc.In Stock: 754A63-113-300P422 Datasheet

MFR RecommendedRFQ

ARJ11B-MASAA-MU2

Abracon LLCIn Stock: 842ARJ11B-MASAA-MU2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ARJ11B-MASAR-LU2 are qualified based on strict equivalence across the following critical parameters:

• Connector Type: RJ45
• Number of Ports: 1
• Number of Rows: 1
• Applications: 10/100 Base-T, AutoMDIX
• Mounting Type: Through Hole
• Orientation: 90° Angle (Right)
• Termination: Solder
• Shielding: Shielded, EMI Finger
• Features: Board Lock
• Tab Direction: Down
• Contact Finish: Gold
• Operating Temperature: 0°C ~ 70°C
• Number of Cores per Jack: 4
• LED Color: Does Not Contain LED
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

All identified substitute parts maintain full electrical and mechanical compatibility with the main part number across these parameters. Variations in height above board, contact finish thickness, and internal material specifications do not affect functional substitution for this application category.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status with full ROHS3 compliance and REACH unaffected certification. The ARJ11B-MASAR-LU2 and ARJ11B-MASAA-MU2 are both manufactured by Abracon LLC and differ only in packaging format (standard versus tray). The A63-113-300P422 from Mercury United Electronics, Inc. provides an alternative from a different manufacturer while maintaining identical electrical and mechanical specifications for 10/100 Base-T Ethernet applications.

Selection between these parts should be based on supply availability, packaging requirements, and established supplier relationships. All three parts are functionally equivalent for PCB integration and Ethernet connectivity applications within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can ARJ11B-MASAA-MU2 be used as a direct replacement for ARJ11B-MASAR-LU2?

A: Yes. Both parts are manufactured by Abracon LLC within the ARJ11B series and share identical electrical and mechanical specifications. The primary difference is packaging format. ARJ11B-MASAR-LU2 is supplied in standard packaging, while ARJ11B-MASAA-MU2 is supplied in tray packaging. Both are suitable for direct PCB substitution.

Q: Is the A63-113-300P422 from Mercury United Electronics compatible with designs specified for ARJ11B-MASAR-LU2?

A: Yes. The A63-113-300P422 meets all critical electrical and mechanical parameters required for 10/100 Base-T Ethernet applications. The connector maintains identical port configuration, orientation, termination method, and shielding specifications. The height above board difference of 0.014" (0.35mm) is within acceptable tolerance for standard PCB layouts.

Q: What is the significance of the contact finish thickness difference between ARJ11B-MASAR-LU2 and A63-113-300P422?

A: The ARJ11B-MASAR-LU2 has a contact finish thickness of 6.00µin (0.152µm), while the A63-113-300P422 has 15.0µin (0.38µm). Both thicknesses provide adequate gold plating for reliable electrical contact and corrosion resistance in 10/100 Base-T applications. The thicker finish on the A63-113-300P422 offers extended contact durability under repeated mating cycles.

Q: Are all three parts suitable for the same PCB footprint?

A: The ARJ11B-MASAR-LU2 and ARJ11B-MASAA-MU2 share identical dimensions and mounting specifications. The A63-113-300P422 has a height above board of 0.531" (13.49mm) compared to 0.545" (13.84mm) for the Abracon parts. This 0.014" difference is typically accommodated within standard PCB design tolerances for through-hole connectors.

Q: Do all substitute parts maintain the same environmental compliance?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and rated for MSL 1 (Unlimited) moisture sensitivity. Operating temperature ranges are identical at 0°C to 70°C across all parts.