TE Connectivity 520257-2 Modular Connector Jack 4P4C Equivalent & Substitute Parts

Part Overview

The TE Connectivity 520257-2 is a modular connector jack with 4 positions and 4 contacts (4P4C), commonly designated as RJ9, RJ10, or RJ22 connector type. This vertical unshielded jack connector is designed for through-hole mounting with solder termination and operates across the Category 3 rating specification. The 520257-2 is classified as an obsolete product, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and service applications.

Substiute Parts

520257-2

TE Connectivity AMP ConnectorsIn Stock: 1095520257-2 Datasheet

Current PartRFQ

5520257-2

TE Connectivity AMP ConnectorsIn Stock: 23615520257-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 520257-2 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications for connector type, contact configuration (4P4C), mounting methodology (through-hole vertical), termination approach (solder), shielding classification (unshielded), and operational ratings (Cat3). Contact material composition, finish specification, housing material, and operating temperature range must remain unchanged. The primary distinction between the main part and its substitute relates to product status classification and regulatory compliance status, not functional or physical characteristics.

The substitute part 5520257-2 satisfies all substitution criteria through complete parameter alignment with the 520257-2 across all specified electrical and mechanical dimensions.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 5520257-2 serves as the direct active equivalent to the obsolete 520257-2 model. Both parts maintain complete functional and physical equivalence across all electrical and mechanical parameters. The 5520257-2 is classified as an active product with current manufacturing status, ensuring ongoing availability and supply chain continuity.

The 5520257-2 achieves RoHS compliance status, whereas the 520257-2 is classified as RoHS non-compliant. This compliance improvement represents a regulatory advancement without modification to the connector's core electrical or mechanical performance characteristics. Organizations subject to RoHS requirements or implementing RoHS-compliant component strategies should prioritize the 5520257-2 for new designs and production applications.

Packaging differs between the two parts, with the 5520257-2 supplied in tray format. This packaging specification does not affect connector functionality or performance and relates solely to logistics and handling procedures.

Frequently Asked Questions (FAQ)

Q: Are the 520257-2 and 5520257-2 electrically and mechanically interchangeable?

A: Yes. Both connectors maintain identical specifications across all electrical and mechanical parameters, including contact configuration (4P4C), mounting type (through-hole vertical), termination method (solder), shielding classification (unshielded), and operating temperature range (-40°C ~ 85°C). Direct substitution is supported without circuit or mechanical redesign.

Q: What is the primary reason to transition from 520257-2 to 5520257-2?

A: The 520257-2 is classified as an obsolete product, creating supply and availability constraints. The 5520257-2 is an active product with current manufacturing status, ensuring reliable component sourcing for ongoing production and service requirements. Additionally, the 5520257-2 achieves RoHS compliance, whereas the 520257-2 does not.

Q: Does the tray packaging of the 5520257-2 affect connector performance?

A: No. Packaging format relates to logistics, storage, and handling procedures only. The tray packaging of the 5520257-2 does not alter the connector's electrical performance, mechanical characteristics, or functional capabilities.

Q: Can the 5520257-2 be used in applications originally designed for the 520257-2?

A: Yes. The 5520257-2 is a direct functional equivalent with identical connector type, contact configuration, mounting methodology, and operational specifications. Existing circuit designs and mechanical layouts require no modification for component substitution.

Q: What is the significance of RoHS compliance for the 5520257-2?

A: RoHS compliance indicates that the 5520257-2 meets regulatory restrictions on hazardous substances in electrical and electronic equipment. Organizations operating under RoHS requirements or implementing compliant component strategies should utilize the 5520257-2 for new designs and production applications.

Q: Are there any performance differences between the 520257-2 and 5520257-2?

A: No performance differences exist. Both connectors maintain identical electrical ratings (Cat3), contact material composition (phosphor bronze with gold finish), housing material (PBT polyester), and operating temperature specifications (-40°C ~ 85°C).