TE Connectivity 520259-4 Modular Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 520259-4 is a Jack Modular Connector with 8p8c (RJ45, Ethernet) configuration, designed for vertical through-hole mounting in unshielded Cat3 applications. This connector features board lock and panel stop functionality with phosphor bronze contacts finished in gold.

The 520259-4 is classified as obsolete. Locating active production alternatives is necessary to ensure supply chain continuity and access to current manufacturing stock for new designs and production requirements.

Substiute Parts

520259-4

TE Connectivity AMP ConnectorsIn Stock: 1111520259-4 Datasheet

Current PartRFQ

5520259-4

TE Connectivity AMP ConnectorsIn Stock: 4158065520259-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 520259-4 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Electrical Parameters:

• Connector type (Jack)
• Contact count and configuration (8p8c RJ45 Ethernet)
• Contact material and finish (Phosphor Bronze, Gold 50.0µin)
• Shielding classification (Unshielded)
• Category rating (Cat3)

Mechanical Parameters:

• Mounting method (Through Hole)
• Orientation (Vertical)
• Termination type (Solder)
• Housing material (PBT, Polyester)
• Functional features (Board Lock, Panel Stops, User Selectable Tab Direction)

Environmental Parameters:

• Operating temperature range (-40°C ~ 85°C)

The substitute part 5520259-4 meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 5520259-4

The 5520259-4 is the direct substitute for the obsolete 520259-4. All electrical and mechanical parameters are identical. The substitute part is currently in active production status with substantial inventory availability (415,741 pieces in stock).

Compliance Considerations:

The 5520259-4 carries RoHS Compliant certification, whereas the 520259-4 is RoHS non-compliant. For applications subject to RoHS requirements or future regulatory compliance mandates, the 5520259-4 is the appropriate selection.

Both parts share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, indicating equivalent export control and tariff treatment.

Packaging Difference:

The substitute part 5520259-4 is supplied in Tray packaging, whereas the main part 520259-4 packaging specification is not provided. Packaging format does not affect electrical or mechanical compatibility and is a procurement consideration only.

Supply Chain Status:

The 520259-4 is obsolete with limited remaining inventory (1,068 pieces). The 5520259-4 is active production with robust stock levels, ensuring long-term supply availability for current and future production requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5520259-4 be used as a direct replacement for the 520259-4 in existing designs?

A: Yes. The 5520259-4 is electrically and mechanically identical to the 520259-4 across all specified parameters. No design modifications are required for substitution.

Q: What is the difference between the 520259-4 and 5520259-4?

A: The parts are functionally equivalent. The primary differences are product status (obsolete versus active), RoHS compliance status, and packaging format (unspecified versus Tray). The base connector specifications are identical.

Q: Does the RoHS compliance difference affect compatibility?

A: RoHS compliance is a regulatory and material composition classification. It does not affect electrical performance or mechanical compatibility. Selection between RoHS compliant and non-compliant versions depends on application regulatory requirements.

Q: Are there any performance differences between these connectors?

A: No. Both connectors maintain identical electrical ratings (Cat3), contact specifications (Phosphor Bronze with 50.0µin gold finish), operating temperature range (-40°C ~ 85°C), and mechanical features (Board Lock, Panel Stops, User Selectable Tab Direction).

Q: What is the significance of the packaging difference?

A: Packaging format (Tray versus unspecified) affects logistics, storage, and handling procedures but does not impact connector performance or compatibility. Packaging selection is determined by procurement and assembly process requirements.

Q: Why is the 520259-4 listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 5520259-4 serves as the current production equivalent and is recommended for all new designs and ongoing production requirements.

Q: Can the 5520259-4 be used in Cat3 and higher category applications?

A: The 5520259-4 is rated for Cat3 applications. Use in higher category applications (Cat5, Cat5e, Cat6) requires verification against the specific category requirements of the target application.

Q: Is the 5520259-4 suitable for shielded or unshielded cable installations?

A: The 5520259-4 is an unshielded connector. It is designed for unshielded twisted pair (UTP) cable installations. Shielded applications require a shielded connector variant.