TE Connectivity 557561-1 Modular Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 557561-1 is a modular jack connector designed for 8-position 8-contact (8p8c) RJ45 Ethernet applications. This connector features a 90° right-angle orientation, through-hole solder termination, and unshielded construction rated for Cat4 performance. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts maintain identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

557561-1

TE Connectivity AMP ConnectorsIn Stock: 775557561-1 Datasheet

Current PartRFQ

5557561-1

TE Connectivity AMP ConnectorsIn Stock: 28095557561-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 557561-1 is based on strict electrical and mechanical parameter equivalence. The substitute part 5557561-1 maintains identical specifications across all critical functional parameters: connector type, contact configuration (8p8c RJ45), port count, orientation (90° right-angle), mounting method (through-hole), termination type (solder), shielding classification (unshielded), performance rating (Cat4), contact material and finish specifications, housing material, operating temperature range, and board guide feature.

The primary distinction between the main part and substitute is product status and compliance certification. The 557561-1 is classified as obsolete with RoHS non-compliant status, while the substitute 5557561-1 carries active product status with RoHS compliance. Both parts share identical base product number derivation and equivalent ECCN and HTSUS classifications.

Substitution eligibility is determined by the following key parameters:

• Contact configuration and port count
• Mechanical orientation and mounting interface
• Termination method and solder compatibility
• Electrical performance rating (Cat4)
• Operating temperature specifications
• Contact material and finish composition

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 5557561-1 is the direct substitute for the obsolete 557561-1 modular connector. Selection of the substitute part is based on the following engineering criteria:

Product Status: The 557561-1 is classified as obsolete, limiting availability for new production and long-term supply chain reliability. The 5557561-1 maintains active product status, ensuring continued manufacturing support and component availability.

Regulatory Compliance: The 557561-1 carries RoHS non-compliant status, which may conflict with regulatory requirements in applications subject to RoHS directives. The 5557561-1 is RoHS compliant, satisfying environmental and regulatory compliance requirements for modern electronic equipment.

Functional Equivalence: All electrical and mechanical parameters are identical between the main part and substitute. The 8p8c RJ45 jack configuration, 90° right-angle orientation, through-hole solder termination, Cat4 performance rating, and operating temperature range (-40°C to 85°C) are maintained without modification.

Packaging Consideration: The substitute part is supplied in tray packaging, which is standard for production environments and supports automated assembly processes.

For applications currently using the 557561-1, direct substitution with the 5557561-1 is supported without circuit design modification or PCB layout revision.

Frequently Asked Questions (FAQ)

Q: Can the 5557561-1 substitute directly for the 557561-1 in existing designs?

A: Yes. The 5557561-1 maintains identical electrical and mechanical specifications. No circuit design changes or PCB layout modifications are required for direct substitution.

Q: What is the primary reason for substitution?

A: The 557561-1 is classified as obsolete. The 5557561-1 is an active product with improved compliance status (RoHS compliant), ensuring long-term availability and regulatory alignment.

Q: Are the contact configurations identical?

A: Yes. Both parts feature 8-position 8-contact (8p8c) RJ45 Ethernet configuration with three ports, identical contact material (phosphor bronze), and identical gold finish specifications (50.0µin / 1.27µm).

Q: Do both parts support the same mounting method?

A: Yes. Both parts use through-hole solder termination with identical 90° right-angle orientation and board guide features.

Q: What is the difference in packaging?

A: The 557561-1 packaging is not specified in available documentation. The 5557561-1 is supplied in tray packaging, which is standard for production environments.

Q: Are the operating temperature ranges the same?

A: Yes. Both parts operate across the identical temperature range of -40°C to 85°C.

Q: Does the substitute part meet RoHS requirements?

A: Yes. The 5557561-1 is RoHS compliant, whereas the 557561-1 is RoHS non-compliant. This is a key advantage of the substitute part for applications subject to RoHS directives.

Q: Is the Cat4 performance rating maintained?

A: Yes. Both parts are rated for Cat4 Ethernet performance with identical unshielded construction.