TE Connectivity 770522-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 770522-1 is a rectangular connector socket contact designed for power applications. This component is classified as a socket contact with crimp termination, rated for 18-24 AWG wire gauges, and features a tin-lead contact finish. The part is currently listed as obsolete, which necessitates identification of equivalent and substitute components for ongoing design and procurement requirements. Active alternatives are available within the same SL-156 series that maintain electrical and mechanical compatibility.

Substiute Parts

770522-1

TE Connectivity AMP ConnectorsIn Stock: 911770522-1 Datasheet

Current PartRFQ

3-770522-1

TE Connectivity AMP ConnectorsIn Stock: 1425623-770522-1 Datasheet

DirectRFQ

770476-1

TE Connectivity AMP ConnectorsIn Stock: 75108770476-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 770522-1 is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Series designation (SL-156)
• Socket contact type
• Crimp termination method
• Wire gauge range (18-24 AWG)
• Contact finish thickness (80.0µin / 2.03µm)
• Moisture sensitivity level (MSL 1)
• Power application classification

Acceptable Variation Parameters:

• Product status (obsolete to active transition)
• Contact finish composition (tin-lead to tin)
• RoHS compliance status
• Packaging format

The substitute parts identified maintain full electrical and mechanical compatibility through identical series classification, contact geometry, termination method, and wire gauge specifications. Variations in contact finish material and compliance certifications do not affect functional interchangeability in the SL-156 socket contact application.

Parameter Comparison

Engineering Selection Recommendations

3-770522-1 (Primary Substitute): This part is the direct equivalent to 770522-1 with active product status. It maintains identical electrical and mechanical specifications while offering ROHS3 compliance. The transition from tin-lead to tin contact finish does not affect functional performance in the SL-156 socket contact application. This part is recommended for new designs and ongoing procurement where RoHS compliance is required.

770476-1 (Secondary Substitute): This part provides functional equivalence with active product status and maintains the original tin-lead contact finish specification. It is suitable for applications where tin-lead contact material is specifically required or where existing designs have been validated with this finish composition. The part retains REACH Affected status consistent with the original 770522-1.

Both substitute parts are available in significantly higher inventory quantities compared to the obsolete 770522-1, supporting supply chain continuity and production scheduling.

Frequently Asked Questions (FAQ)

Q: Can 3-770522-1 be used as a direct replacement for 770522-1 in existing assemblies?

A: Yes. The 3-770522-1 maintains identical series designation, socket contact type, crimp termination, wire gauge range, and contact finish thickness. The change from tin-lead to tin contact finish does not affect electrical or mechanical compatibility in SL-156 power socket applications.

Q: What is the difference between 3-770522-1 and 770476-1?

A: Both parts are functionally equivalent socket contacts within the SL-156 series. The primary difference is contact finish material: 3-770522-1 uses tin finish with ROHS3 compliance, while 770476-1 retains the original tin-lead finish with RoHS non-compliant status. Both maintain identical wire gauge, termination method, and finish thickness specifications.

Q: Why is 770522-1 listed as obsolete?

A: The 770522-1 has been superseded by active alternatives within the SL-156 series. The 3-770522-1 variant provides equivalent functionality with improved compliance status and higher availability.

Q: Does packaging format affect substitution eligibility?

A: Packaging format (bulk, cut tape) does not affect electrical or mechanical compatibility. Selection between 3-770522-1 (bulk packaging) and 770476-1 (cut tape packaging) is based on procurement and assembly process requirements rather than functional performance.

Q: Are there any compliance considerations when substituting these parts?

A: The 3-770522-1 offers ROHS3 compliance, making it suitable for applications with RoHS requirements. The 770476-1 maintains the original RoHS non-compliant status. Both parts are subject to REACH regulations or vendor-defined status. Compliance requirements should be evaluated against specific application and regional standards.

Q: What wire gauge range is supported by these socket contacts?

A: All three parts (770522-1, 3-770522-1, and 770476-1) support 18-24 AWG wire gauges with crimp termination. This range accommodates standard power distribution applications within the SL-156 connector series.