ARJ11D-MASB-B-A-FMU2 Equivalent & Substitute Parts

Part Overview

The ARJ11D-MASB-B-A-FMU2 is a 1-port RJ45 modular connector manufactured by Abracon LLC, designed for 10/100 Base-T Ethernet applications with AutoMDIX capability. This through-hole connector features a 90° right-angle orientation and integrated board lock mechanism. The part is currently active in production with 803 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to component availability, supply chain considerations, or design flexibility within the same functional category.

Substiute Parts

ARJ11D-MASB-B-A-FMU2

Abracon LLCIn Stock: 843ARJ11D-MASB-B-A-FMU2 Datasheet

Current PartRFQ

A63-113-213N491

Mercury United Electronics, Inc.In Stock: 1394A63-113-213N491 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ARJ11D-MASB-B-A-FMU2 is determined by strict equivalence across the following critical parameters:

• Connector Type & Port Configuration: RJ45, single port
• Mechanical Interface: Through-hole mounting, 90° right-angle orientation, solder termination
• Electrical Performance: 10/100 Base-T with AutoMDIX support
• Physical Protection: Shielded construction with EMI finger and board lock
• Environmental Compliance: ROHS3 compliance, MSL 1 rating, REACH unaffected status
• Operating Range: 0°C to 70°C temperature specification

The substitute part A63-113-213N491 meets all these criteria, enabling direct functional replacement in equivalent circuit designs and PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

Both the ARJ11D-MASB-B-A-FMU2 and A63-113-213N491 are active production components with equivalent functional specifications for 10/100 Base-T Ethernet applications. Selection between these parts should be based on:

• Supply Availability: A63-113-213N491 currently has 1361 units in stock versus 803 units for ARJ11D-MASB-B-A-FMU2
• Packaging Format: ARJ11D-MASB-B-A-FMU2 is supplied in standard packaging; A63-113-213N491 is supplied in tray packaging
• Mechanical Tolerance: Height above board differs by 0.015" (0.39mm), which may be relevant for designs with tight vertical clearance constraints
• Regulatory Compliance: Both parts meet ROHS3, REACH, and EAR99 requirements with identical MSL ratings

Frequently Asked Questions (FAQ)

Q: Can A63-113-213N491 be used as a direct replacement for ARJ11D-MASB-B-A-FMU2 in existing designs?

A: Yes. Both connectors share identical electrical specifications, mechanical mounting interfaces, and environmental ratings. The 0.015" height difference is within typical PCB design tolerances for 90° right-angle connectors.

Q: Are there differences in contact material or finish thickness between these parts?

A: Both use gold contact finish. ARJ11D-MASB-B-A-FMU2 specifies 6.00µin thickness; A63-113-213N491 specifies 15.0µin thickness. Both finishes meet 10/100 Base-T contact requirements.

Q: What is the significance of the packaging difference?

A: ARJ11D-MASB-B-A-FMU2 uses standard packaging; A63-113-213N491 uses tray packaging. This affects handling and storage procedures but does not impact electrical or mechanical performance.

Q: Do both parts support AutoMDIX functionality?

A: Yes. Both ARJ11D-MASB-B-A-FMU2 and A63-113-213N491 are specified for 10/100 Base-T with AutoMDIX capability.

Q: Are there any temperature or humidity limitations for these connectors?

A: Both parts operate within 0°C to 70°C and carry MSL 1 (Unlimited) ratings, indicating no moisture sensitivity restrictions during storage or handling.