TE Connectivity AMP Connectors 521253-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 521253-2 is a 2 Position Housing Connector Female Receptacle in red, designed for 0.250" (6.35mm) Quick Connect/Disconnect applications. This component is classified as Obsolete, necessitating identification of active equivalent parts for ongoing procurement and system maintenance. The housing is constructed from Polyamide (PA66) Nylon 6/6 material and operates as a free-hanging in-line connector without integrated contacts.

Substiute Parts

521253-2

TE Connectivity AMP ConnectorsIn Stock: 938521253-2 Datasheet

Current PartRFQ

1-521253-2

TE Connectivity AMP ConnectorsIn Stock: 7571-521253-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 521253-2 is determined by strict equivalence across the following critical parameters:

• Terminal Type: Quick Connect, Disconnect functionality
• Gender Configuration: Female, Receptacle orientation
• Terminal Size: 0.250" (6.35mm) standardized dimension
• Position Count: 2-position housing configuration
• Material Composition: Polyamide (PA66) Nylon 6/6
• Color Specification: Red housing
• Mounting Configuration: Free Hanging (In-Line) installation method
• Compliance Standards: ROHS3 Compliant, EAR99 ECCN classification

The substitute part 1-521253-2 maintains identical electrical and mechanical specifications across all parameters, with the primary distinction being product status transition from Obsolete to Active and packaging format change from standard to Bulk.

Parameter Comparison

Engineering Selection Recommendations

The part 1-521253-2 serves as the direct functional equivalent to the obsolete 521253-2. Selection of the substitute part is supported by the following engineering criteria:

Product Status: The substitute part maintains Active product status, ensuring continued manufacturer support, availability, and compliance with current regulatory requirements. The original part's Obsolete classification restricts future procurement viability.

Regulatory Compliance: Both parts maintain identical ROHS3 Compliant certification and EAR99 ECCN classification, confirming equivalent environmental and export regulatory standing.

Electrical and Mechanical Equivalence: All terminal specifications, housing dimensions, material composition, and mounting characteristics are identical between the main part and substitute, ensuring direct form-fit-function compatibility.

Packaging Consideration: The substitute part is supplied in Bulk packaging format rather than standard packaging. This distinction affects order quantity and storage requirements but does not alter component functionality or performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can 1-521253-2 be used as a direct replacement for 521253-2 in existing designs?

A: Yes. The 1-521253-2 maintains identical electrical and mechanical specifications across all critical parameters including terminal type, gender configuration, terminal size, position count, material composition, color, and mounting method. Direct substitution is supported without design modification.

Q: What is the significance of the product status change from Obsolete to Active?

A: The Obsolete status of 521253-2 indicates discontinued manufacturing and limited future availability. The Active status of 1-521253-2 confirms ongoing production, manufacturer support, and reliable long-term procurement. For new designs and ongoing production, the Active part is the appropriate selection.

Q: Are there compliance differences between the two parts?

A: No. Both parts maintain identical ROHS3 Compliant certification, MSL Rating 1 (Unlimited), and EAR99 ECCN classification. Regulatory and environmental compliance status is equivalent.

Q: How does the Bulk packaging of 1-521253-2 differ from the standard packaging of 521253-2?

A: Bulk packaging typically indicates larger quantity shipments without individual component packaging. This affects order quantity minimums and storage considerations but does not alter the component's electrical or mechanical performance.

Q: Are contacts included with either part?

A: No. Both 521253-2 and 1-521253-2 are housing-only components supplied without integrated contacts. Contacts must be sourced separately for 0.250" (6.35mm) Quick Connect applications.

Q: What applications are compatible with this 2-position connector housing?

A: This housing is designed for use with 0.250" (6.35mm) Quick Connect/Disconnect terminals in applications requiring free-hanging in-line female receptacle connections with side-to-side stacking configuration.