TE Connectivity 557566-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 557566-1 is a Jack Modular Connector 8p8c (RJ45, Ethernet) with 90° right-angle orientation, unshielded design, and Cat4 rating. This connector features through-hole solder termination, phosphor bronze contacts with gold finish, and polyamide housing suitable for networking and telecommunications applications.

The 557566-1 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and field service requirements.

Substiute Parts

557566-1

TE Connectivity AMP ConnectorsIn Stock: 1117557566-1 Datasheet

Current PartRFQ

5557566-1

TE Connectivity AMP ConnectorsIn Stock: 644825557566-1 Datasheet

DirectRFQ

5558525-1

TE Connectivity AMP ConnectorsIn Stock: 21885558525-1 Datasheet

SimilarRFQ

5558526-1

TE Connectivity AMP ConnectorsIn Stock: 10965558526-1 Datasheet

SimilarRFQ

0432238582

MolexIn Stock: 11050432238582 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 557566-1 is determined by the following critical parameters: connector type (Jack), contact count (8p8c RJ45), mounting method (through-hole solder), physical orientation (90° right-angle), and operating temperature range (-40°C ~ 85°C). These parameters define the mechanical and electrical interface compatibility.

Substitute parts are grouped into two categories:

Direct Functional Equivalent: Parts maintaining identical unshielded Cat4 specifications with active product status and improved compliance certifications.

Enhanced Specification Alternatives: Parts with shielded designs and Cat5 ratings that provide superior EMI protection and bandwidth capability while maintaining mechanical compatibility and core electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity 5557566-1

The 5557566-1 is the direct functional equivalent of the obsolete 557566-1. Both parts maintain identical electrical and mechanical specifications: 8p8c RJ45 jack configuration, 90° right-angle orientation, through-hole solder termination, unshielded design, and Cat4 rating. The 5557566-1 carries active product status and ROHS3 compliance, providing superior long-term availability and regulatory alignment compared to the obsolete main part. This substitute requires no design modifications and provides drop-in compatibility.

Secondary Substitutes: TE Connectivity 5558525-1 and 5558526-1

The 5558525-1 and 5558526-1 offer enhanced specifications with shielded designs and Cat5 ratings. Both maintain mechanical compatibility through identical connector type, contact count, mounting method, and orientation. The 5558526-1 provides 8 ports matching the main part configuration, while the 5558525-1 provides 6 ports. These alternatives introduce EMI shielding and increased bandwidth capability, suitable for applications requiring improved signal integrity. Both carry active product status and RoHS compliance.

Alternative Manufacturer: Molex 0432238582

The Molex 0432238582 provides cross-manufacturer compatibility with shielded design and Cat4 rating. This part maintains the same connector type, contact count, mounting method, and orientation as the main part. The 0432238582 features board lock retention instead of board guide and glass-filled polyamide housing. This part carries active product status and ROHS3 compliance, offering an alternative sourcing option with equivalent electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the 5557566-1 replace the obsolete 557566-1 without design changes?

A: Yes. The 5557566-1 is a direct functional equivalent with identical electrical and mechanical specifications. No design modifications are required. The primary difference is product status (active versus obsolete) and improved RoHS3 compliance.

Q: What is the difference between the unshielded 5557566-1 and the shielded alternatives?

A: The 5557566-1 maintains the unshielded Cat4 design of the original part. The 5558525-1 and 5558526-1 add EMI shielding and increase the rating to Cat5, providing enhanced noise immunity and bandwidth capability. Selection depends on application EMI requirements and signal integrity specifications.

Q: Why does the 5558525-1 specify 6 ports while other parts specify 8 ports?

A: The 5558525-1 is configured with 6 ports, which differs from the 8-port configuration of the main part and other substitutes. This parameter difference may affect board layout compatibility. Verify port count requirements before selection.

Q: Is the Molex 0432238582 mechanically compatible with the TE Connectivity parts?

A: Yes. The Molex 0432238582 maintains mechanical compatibility through identical connector type, contact count, mounting method, and 90° right-angle orientation. The primary differences are manufacturer, shielding design, and retention mechanism (board lock versus board guide).

Q: What compliance certifications apply to these substitute parts?

A: The 5557566-1 and Molex 0432238582 carry ROHS3 compliance. The 5558525-1 and 5558526-1 carry RoHS compliance. All parts are classified as EAR99 for export control purposes and carry identical HTSUS codes.

Q: Can these parts be used interchangeably in existing designs?

A: The 5557566-1 provides direct interchangeability. The shielded alternatives (5558525-1, 5558526-1) and Molex 0432238582 require verification of board layout compatibility, particularly regarding port count and shielding requirements. Electrical performance remains compatible across all substitutes within their respective ratings.