ARJ14A-MISA-MU2 Equivalent & Substitute Parts

Part Overview

The ARJ14A-MISA-MU2 is a 4-port RJ45 modular connector manufactured by Abracon LLC, designed for 10/100 Base-T Ethernet applications with AutoMDIX capability. This through-hole mounted connector features a 90° right-angle orientation and board lock mechanism for secure PCB integration. The part is currently active in production with 757 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when supply chain optimization is required.

Substiute Parts

ARJ14A-MISA-MU2

Abracon LLCIn Stock: 847ARJ14A-MISA-MU2 Datasheet

Current PartRFQ

A63-143-300N161

Mercury United Electronics, Inc.In Stock: 1023A63-143-300N161 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ARJ14A-MISA-MU2 is determined by strict alignment of the following critical parameters:

• Connector Type: RJ45
• Number of Ports: 4
• Number of Rows: 1
• Mounting Type: Through Hole
• Orientation: 90° Angle (Right)
• Termination: Solder
• Applications: 10/100 Base-T, AutoMDIX
• Shielding: Shielded
• Features: Board Lock
• Tab Direction: Down
• Contact Finish: Gold
• Operating Temperature Range: 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

The substitute part A63-143-300N161 meets all critical functional and electrical parameters required for direct substitution in 10/100 Base-T Ethernet PCB applications.

Parameter Comparison

Engineering Selection Recommendations

Both the ARJ14A-MISA-MU2 and A63-143-300N161 are active production parts with full regulatory compliance. Selection between these parts should be based on:

• Availability and lead time requirements
• Packaging format (ARJ14A-MISA-MU2 supplied in standard packaging; A63-143-300N161 supplied in tray packaging)
• Contact finish thickness specification (ARJ14A-MISA-MU2: 6.00µin; A63-143-300N161: 15.0µin)
• Height tolerance requirements (ARJ14A-MISA-MU2: 0.512"; A63-143-300N161: 0.516")
• Housing material composition (A63-143-300N161 specifies Polyamide (PA), Nylon, Polyester)

Both parts satisfy ROHS3 compliance and REACH unaffected status for regulated markets.

Frequently Asked Questions (FAQ)

Q: Can A63-143-300N161 be used as a direct replacement for ARJ14A-MISA-MU2 in 10/100 Base-T applications?

A: Yes. Both parts share identical functional specifications for connector type, port configuration, mounting method, orientation, termination, and application support. The 0.004" height difference and contact finish thickness variation fall within acceptable tolerances for standard PCB integration.

Q: What is the difference in packaging between these two parts?

A: ARJ14A-MISA-MU2 is supplied in standard packaging, while A63-143-300N161 is supplied in tray packaging. This affects handling, storage, and bulk ordering considerations but does not impact electrical or mechanical performance.

Q: Are both parts suitable for automated assembly processes?

A: Both parts feature identical through-hole solder termination and board lock mechanisms, making them compatible with standard PCB assembly workflows. Packaging format may influence pick-and-place equipment compatibility.

Q: Do these connectors support AutoMDIX functionality?

A: Yes. Both ARJ14A-MISA-MU2 and A63-143-300N161 are specified for 10/100 Base-T AutoMDIX applications, enabling automatic medium-dependent interface crossover detection.

Q: What is the significance of the contact finish thickness difference?

A: ARJ14A-MISA-MU2 specifies 6.00µin gold plating, while A63-143-300N161 specifies 15.0µin gold plating. The thicker finish on A63-143-300N161 provides enhanced durability and contact longevity in high-cycle mating applications.