ARJM11B1-502-AB-EW4 RJ45 Modular Connector Equivalent & Substitute Parts

Part Overview

The ARJM11B1-502-AB-EW4 is a 1-port RJ45 through-hole modular connector manufactured by Abracon LLC, designed for 10/100/1000 Base-T Ethernet applications with AutoMDIX support. This connector features a 90° right-angle orientation, solder termination, and integrated board lock mechanism with dual LED indicators (green-yellow). The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

ARJM11B1-502-AB-EW4

Abracon LLCIn Stock: 770ARJM11B1-502-AB-EW4 Datasheet

Current PartRFQ

ARJM11B1-502-AB-EW2

Abracon LLCIn Stock: 236669ARJM11B1-502-AB-EW2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ARJM11B1-502-AB-EW4 is determined by strict equivalence across the following critical parameters:

• Connector Type & Port Configuration: RJ45, single port, 8-core jack
• Mechanical Compatibility: Through-hole mounting, 90° right-angle orientation, 0.535" (14.69mm) height above board
• Electrical Performance: 10/100/1000 Base-T with AutoMDIX support
• Termination Method: Solder termination
• Physical Features: Shielded construction, board lock mechanism, LED indicators
• Environmental & Compliance: Operating temperature -40°C to 85°C, ROHS3 compliant, MSL 1

The identified substitute maintains functional and mechanical equivalence while differing only in packaging configuration and contact finish thickness, both of which do not affect electrical performance or board-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ARJM11B1-502-AB-EW2 is the direct functional equivalent for the obsolete ARJM11B1-502-AB-EW4. Both parts are manufactured by Abracon LLC within the same ARJM11 series and maintain identical electrical, mechanical, and environmental specifications. The substitute part is currently in active production status with significantly higher inventory availability.

The only technical difference is contact finish thickness (30.0µin versus 6.00µin), which does not affect electrical performance, signal integrity, or compliance certifications. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical operating temperature ranges.

For new designs or production requiring this connector type, the ARJM11B1-502-AB-EW2 is the recommended selection due to active product status and established supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can ARJM11B1-502-AB-EW2 be used as a direct replacement for ARJM11B1-502-AB-EW4 in existing designs?

A: Yes. Both connectors are mechanically and electrically identical. They share the same footprint, pin configuration, mounting height, and electrical performance specifications for 10/100/1000 Base-T applications. No PCB redesign is required.

Q: What is the significance of the different contact finish thickness values?

A: Contact finish thickness (30.0µin versus 6.00µin) affects durability under repeated mating cycles and environmental exposure. Both values meet industry standards for gold-plated contacts and do not impact electrical performance or initial signal integrity.

Q: Why is the main part listed as obsolete?

A: Product obsolescence typically reflects manufacturing discontinuation. The ARJM11B1-502-AB-EW2 remains in active production and provides full functional equivalence, making it the appropriate selection for ongoing applications.

Q: Are there packaging differences between these parts?

A: The main part packaging is not specified in available documentation. The substitute part is supplied in tray packaging. This difference affects only procurement and handling procedures, not component performance or compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.