SS74401-003F Equivalent & Substitute Parts

Part Overview

The SS74401-003F is a Jack Modular Connector (RJ45/Ethernet) manufactured by Stewart Connector, featuring 8 positions/contacts (8p8c) with 90° right-angle orientation and shielding with EMI finger. This connector is designed for through-hole solder termination applications requiring board-level integration.

The SS74401-003F has reached obsolete product status. 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

SS74401-003F

Stewart ConnectorIn Stock: 1093SS74401-003F Datasheet

Current PartRFQ

RJE71-188-1451

Amphenol ICC (Commercial Products)In Stock: 1751RJE71-188-1451 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS74401-003F is determined by strict alignment of the following electrical and mechanical parameters:

• Connector Type & Contact Configuration: Jack connector with 8p8c (RJ45/Ethernet) contact arrangement
• Orientation & Mounting: 90° right-angle orientation with through-hole solder termination capability
• Shielding & EMI Protection: Shielded design with EMI finger for electromagnetic interference mitigation
• Contact Properties: Phosphor bronze contact material with gold finish at 50.0µin thickness
• Housing Material: Thermoplastic or PBT-based construction
• Tab Direction: Up-facing tab orientation
• LED Indicator: Green LED color specification

The RJE71-188-1451 (Amphenol ICC) meets all critical substitution criteria. This part maintains functional and mechanical compatibility while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

The RJE71-188-1451 is the qualified substitute for the obsolete SS74401-003F based on the following factors:

Product Status: The RJE71-188-1451 maintains active product status with confirmed inventory availability (1723 pcs), ensuring long-term supply chain continuity compared to the obsolete SS74401-003F.

Compliance & Certifications: The RJE71-188-1451 is RoHS Compliant with EAR99 ECCN classification, meeting current regulatory requirements. The substitute provides defined operating temperature range (-40°C ~ 85°C) and MSL rating (1 - Unlimited), supporting reliable deployment in controlled manufacturing and storage environments.

Functional Equivalence: Both connectors maintain identical contact configuration (8p8c RJ45), orientation (90° right-angle), termination method (solder), shielding design (EMI finger), contact material (phosphor bronze), contact finish (gold, 50.0µin), tab direction (up), and LED color (green). The RJE71-188-1451 additionally supports Cat6 rating, providing enhanced performance capability.

Mechanical Compatibility: The RJE71-188-1451 supports through-hole mounting as the primary configuration, with additional board edge and panel mount options, ensuring direct mechanical substitution in existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the RJE71-188-1451 directly replace the SS74401-003F in existing designs?

A: Yes. Both connectors share identical contact configuration (8p8c RJ45), orientation (90° right-angle), solder termination, shielding with EMI finger, contact material (phosphor bronze), contact finish (gold, 50.0µin), tab direction (up), and LED color (green). The RJE71-188-1451 supports through-hole mounting as specified for the original part.

Q: What are the key differences between these two connectors?

A: The primary differences are product status (RJE71-188-1451 is active vs. SS74401-003F is obsolete), housing material (thermoplastic vs. PBT glass-filled), Cat6 rating availability (RJE71-188-1451 only), defined operating temperature range (-40°C ~ 85°C for RJE71-188-1451), and RoHS compliance status (RJE71-188-1451 is RoHS Compliant). These differences do not affect functional substitution for through-hole solder applications.

Q: Are there packaging considerations when switching to the RJE71-188-1451?

A: The RJE71-188-1451 is supplied in Tray packaging, compared to the original part's unspecified packaging. Verify tray specifications align with your assembly and storage requirements. The connector's physical footprint and through-hole pin configuration remain compatible with existing PCB designs.

Q: Does the RJE71-188-1451 support the same electrical performance as the SS74401-003F?

A: Both connectors maintain identical contact material (phosphor bronze), contact finish (gold, 50.0µin), and shielding design (EMI finger). The RJE71-188-1451 provides Cat6 rating, supporting enhanced data transmission performance for Ethernet applications.

Q: What is the MSL rating difference, and does it affect substitution?

A: The SS74401-003F lists MSL as Not Applicable, while the RJE71-188-1451 specifies MSL 1 (Unlimited). MSL 1 indicates unlimited shelf life under controlled storage conditions (≤30°C, ≤85% RH), providing superior moisture protection and storage flexibility for the substitute part.