TE Connectivity AMP Connectors 322157 Ring Terminal Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 322157 is an insulated ring terminal connector designed for 2 AWG wire gauge applications with a 1/4 inch stud connection. This circular terminal features crimp termination and is part of the Ampli-Bond series. The 322157 is classified as obsolete, making identification of suitable substitute components necessary for ongoing procurement and system maintenance. The part is constructed with copper contact material, tin finish, and vinyl insulation, rated for unlimited moisture sensitivity conditions.

Substiute Parts

322157

TE Connectivity AMP ConnectorsIn Stock: 1142322157 Datasheet

Current PartRFQ

324053

TE Connectivity AMP ConnectorsIn Stock: 1343324053 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 322157 is determined by strict equivalence across the following critical parameters: wire gauge (2 AWG), stud size (1/4 inch), terminal type (circular), termination method (crimp), contact material (copper), contact finish (tin), and mounting configuration (free hanging in-line). The substitute part must maintain insulated construction with serrated termination features. Dimensional tolerances for thickness, width, length, and insulation diameter are secondary considerations but are documented for complete system integration verification. The substitute part 324053 meets all primary substitution criteria while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 324053 serves as the direct functional equivalent to the obsolete 322157. Both components share identical electrical and mechanical specifications for wire gauge, stud size, terminal type, and crimp termination. The 324053 is classified as active product status, ensuring continued availability and supply chain reliability. The 324053 achieves ROHS3 compliance, whereas the 322157 is non-compliant, making the 324053 the preferred selection for applications subject to regulatory requirements. The insulation material differs between the two parts (vinyl versus polyamide/nylon), but both maintain equivalent electrical performance and moisture sensitivity ratings. The 324053 is available in bulk packaging with 1289 pieces in current inventory, compared to 1042 pieces of the obsolete 322157. Selection of the 324053 eliminates obsolescence risk while maintaining full functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 324053 directly replace the 322157 in existing applications?

A: Yes. Both components meet identical specifications for wire gauge (2 AWG), stud size (1/4 inch), terminal type (circular), crimp termination, contact material (copper), contact finish (tin), and mounting configuration. Electrical and mechanical performance are equivalent.

Q: What is the primary difference between these two parts?

A: The 322157 is obsolete and non-compliant with RoHS3 standards, while the 324053 is an active product with ROHS3 compliance. The insulation material differs (vinyl versus polyamide/nylon), but both provide equivalent functional performance.

Q: Are there dimensional differences between the 322157 and 324053?

A: Minor dimensional variations exist. The 324053 has a width of 0.679 inches (17.25mm) versus 0.675 inches (17.15mm) for the 322157, and an overall length of 2.045 inches (51.94mm) versus 2.112 inches (53.64mm). The insulation diameter is 0.468 inches (11.89mm) for the 324053 versus 0.632 inches (16.05mm) for the 322157. These variations do not affect functional compatibility in standard applications.

Q: What packaging options are available for the substitute part?

A: The 324053 is supplied in bulk packaging, with 1289 pieces currently in inventory. The 322157 was supplied in standard packaging with 1042 pieces available.

Q: Does the change in insulation material affect performance?

A: Both vinyl and polyamide (nylon) insulation materials provide equivalent electrical performance and moisture protection for this application. The polyamide insulation in the 324053 offers improved regulatory compliance without compromising functional characteristics.

Q: Are both parts rated for the same moisture sensitivity conditions?

A: Yes. Both the 322157 and 324053 carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: What is the basis for substitution compatibility?

A: Substitution is based on matching critical parameters: wire gauge, stud size, terminal type, termination method, contact material, contact finish, and mounting configuration. Both parts meet these criteria, establishing full functional equivalence.