RJSNEJF85A8 Modular Connector - Equivalent & Substitute Parts

Part Overview

The RJSNEJF85A8 is a shielded modular jack connector manufactured by Amphenol ICC, designed for 8p8c (RJ45/Ethernet) applications with 90° right-angle orientation and through-hole solder termination. This connector features board lock functionality, green LED indicators, and phosphor bronze gold-plated contacts rated for -40°C to 85°C operation.

The RJSNEJF85A8 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector type.

Substiute Parts

RJSNEJF85A8

Amphenol ICC (Commercial Products)In Stock: 862RJSNEJF85A8 Datasheet

Current PartRFQ

RJSAE-5385-08

Amphenol ICC (Commercial Products)In Stock: 849RJSAE-5385-08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RJSNEJF85A8 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Jack
• Contact Configuration: 8p8c (RJ45, Ethernet)
• Orientation: 90° Angle (Right)
• Mounting Type: Through Hole
• Termination Method: Solder
• Shielding: Shielded
• Number of Ports: 8
• Number of Rows: 2
• Contact Material: Phosphor Bronze
• Contact Finish: Gold
• Housing Material: Thermoplastic
• Tab Direction: Up and Down
• LED Color: Green - Green

Allowable Variations:

• Contact Finish Thickness: May vary (original: 30.0µin / 0.76µm)
• Operating Temperature Range: May extend beyond original range (original: -40°C ~ 85°C)
• Packaging Format: May differ from original specification
• Product Status: Active status preferred over obsolete

The RJSAE-5385-08 qualifies as a substitute part based on full alignment with all mandatory parameters while offering enhanced specifications in contact finish thickness and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RJSAE-5385-08

The RJSAE-5385-08 is the qualified substitute for the obsolete RJSNEJF85A8. Selection rationale is based on the following engineering factors:

Product Status: The RJSAE-5385-08 maintains active product status with Amphenol ICC, ensuring ongoing availability, manufacturing support, and supply chain continuity. The original RJSNEJF85A8 is classified as obsolete, creating supply risk for new production or maintenance applications.

Electrical and Mechanical Equivalence: Both connectors share identical specifications across all critical functional parameters: 8p8c jack configuration, 90° right-angle orientation, through-hole solder termination, shielded design, phosphor bronze gold-plated contacts, and thermoplastic housing. Pin-to-pin compatibility and board layout requirements are identical.

Enhanced Specifications: The RJSAE-5385-08 provides superior contact finish thickness (50.0µin versus 30.0µin) and extended operating temperature range (-55°C to 85°C versus -40°C to 85°C). These enhancements do not create incompatibility; they represent performance improvements suitable for the same application space.

Compliance Alignment: Both parts maintain RoHS compliance, identical MSL ratings, and matching ECCN/HTSUS classifications, ensuring regulatory and procurement consistency.

Packaging Consideration: The RJSAE-5385-08 is supplied in tray packaging. Verify packaging format compatibility with your assembly and logistics requirements.

Frequently Asked Questions (FAQ)

Q: Can the RJSAE-5385-08 be used as a direct replacement for the RJSNEJF85A8 in existing designs?

A: Yes. The RJSAE-5385-08 is electrically and mechanically equivalent to the RJSNEJF85A8. All pin assignments, contact configurations, mounting hole patterns, and solder pad layouts are identical. No PCB redesign or assembly process modification is required.

Q: What is the significance of the EMI Finger feature on the RJSAE-5385-08?

A: The EMI Finger is an enhanced shielding element integrated into the RJSAE-5385-08 design. Both the original RJSNEJF85A8 and substitute RJSAE-5385-08 are classified as shielded connectors. The EMI Finger on the substitute represents an additional shielding enhancement that does not affect compatibility or create any functional conflict with the original design.

Q: Does the thicker gold plating on the RJSAE-5385-08 affect compatibility?

A: No. The increased contact finish thickness (50.0µin on the substitute versus 30.0µin on the original) represents an enhancement that improves contact durability and wear resistance. This variation does not affect electrical performance, impedance characteristics, or mechanical fit. The connector remains fully compatible with standard RJ45 plug interfaces.

Q: What is the impact of the extended operating temperature range on the RJSAE-5385-08?

A: The RJSAE-5385-08 operates across -55°C to 85°C, compared to the original -40°C to 85°C range. This extended lower temperature limit provides additional operational margin and is fully backward compatible. If your application operates within the original -40°C to 85°C range, the substitute performs identically. If your application requires operation below -40°C, the substitute provides additional capability.

Q: Are there any packaging or supply chain differences between these parts?

A: The RJSNEJF85A8 packaging specification is not detailed in the original documentation. The RJSAE-5385-08 is supplied in tray packaging. Verify that tray packaging is compatible with your receiving, storage, and assembly processes. Contact your supplier to confirm packaging format requirements for your specific application.

Q: Why is the RJSNEJF85A8 classified as obsolete?

A: Obsolescence classification indicates that Amphenol ICC has discontinued active manufacturing and support for this part number. The RJSAE-5385-08 represents the current active equivalent, ensuring access to ongoing manufacturing capacity, technical support, and supply chain reliability.

Q: Are both parts RoHS compliant?

A: Yes. Both the RJSNEJF85A8 and RJSAE-5385-08 are RoHS compliant with MSL rating 1 (unlimited moisture sensitivity level), ensuring compatibility with lead-free assembly processes and environmental regulations.

Q: What is the inventory status for these parts?

A: The RJSNEJF85A8 has 830 pieces in stock (new original). The RJSAE-5385-08 has 771 pieces in stock (new original). Verify current inventory availability with your supplier, as stock levels are subject to change.