RJSNEJF81A8

Part Overview

The RJSNEJF81A8 is a Jack Modular Connector (8p8c RJ45/Ethernet) manufactured by Amphenol ICC (Commercial Products) with a 90° right-angle shielded configuration. This connector features board lock functionality, through-hole solder termination, and phosphor bronze gold-plated contacts. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system support and production requirements. The availability of active alternatives ensures continued access to functionally equivalent connectivity solutions.

Substiute Parts

RJSNEJF81A8

Amphenol ICC (Commercial Products)In Stock: 691RJSNEJF81A8 Datasheet

Current PartRFQ

RJSAE-5381-08

Amphenol ICC (Commercial Products)In Stock: 3942RJSAE-5381-08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RJSNEJF81A8 is determined by the following critical parameters that must match or exceed the original specification:

Essential Matching Parameters:

• Connector Type: Jack (modular, 8p8c configuration)
• Number of Positions/Contacts: 8p8c (RJ45 Ethernet standard)
• Orientation: 90° right-angle configuration
• Mounting Type: Through Hole
• Termination: Solder
• Shielding: Shielded (minimum requirement)
• Contact Material: Phosphor Bronze or equivalent
• Contact Finish: Gold plating

Compliance Parameters:

• RoHS Compliance: Required
• Moisture Sensitivity Level: MSL 1 or better

The RJSAE-5381-08 meets all substitution criteria as an active product offering identical electrical and mechanical interface characteristics with enhanced shielding (EMI Finger) and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The RJSAE-5381-08 is a qualified substitute for the obsolete RJSNEJF81A8. Both connectors maintain identical electrical and mechanical interfaces as RJ45 modular jacks with through-hole solder termination. The substitute part is manufactured by the same supplier (Amphenol ICC) and carries the same regulatory approvals (RoHS Compliant, ECCN EAR99, identical HTSUS classification).

The RJSAE-5381-08 provides operational advantages over the original specification: an extended operating temperature range (-55°C to 85°C versus -40°C to 85°C) and thicker gold contact plating (50.0µin versus 30.0µin), both of which enhance reliability without introducing compatibility concerns. The EMI Finger shielding enhancement offers improved electromagnetic interference rejection in high-noise environments.

Active product status of the RJSAE-5381-08 ensures sustained supply chain availability, documented technical support, and compliance with current manufacturing standards. Design implementations using the RJSNEJF81A8 may transition directly to the RJSAE-5381-08 without circuit or mechanical modifications.

Frequently Asked Questions (FAQ)

Q: Can the RJSAE-5381-08 directly replace the RJSNEJF81A8 in existing designs?

A: Yes. Both connectors are 8p8c RJ45 jack types with identical 90° right-angle through-hole solder termination. Mechanical and electrical pinout compatibility is preserved, requiring no design changes.

Q: What is the significance of the EMI Finger in the RJSAE-5381-08?

A: The EMI Finger is an additional shielding element that provides enhanced electromagnetic interference rejection. The original RJSNEJF81A8 specification does not include this feature, but its presence in the substitute represents a performance enhancement that maintains full compatibility.

Q: Why does the RJSAE-5381-08 have thicker gold plating?

A: The increased contact finish thickness (50.0µin versus 30.0µin) provides extended contact life and improved corrosion resistance. This exceeds the original specification and represents a reliability improvement without affecting interchangeability.

Q: Does the extended operating temperature range of the RJSAE-5381-08 affect compatibility?

A: No. The RJSAE-5381-08 operates across -55°C to 85°C, exceeding the original -40°C to 85°C range. This broader specification is fully backward compatible and beneficial for applications requiring operation at lower temperatures.

Q: Are both parts RoHS compliant?

A: Yes. Both the RJSNEJF81A8 and RJSAE-5381-08 are RoHS Compliant with identical regulatory classifications (ECCN: EAR99, HTSUS: 8536.69.4040).

Q: What is the inventory status difference between these parts?

A: The RJSNEJF81A8 (obsolete) has 658 pcs in stock. The RJSAE-5381-08 (active) has 3,906 pcs available in tray packaging. The active status of the substitute ensures continued supply availability for future production runs.