TE Connectivity AMP Connectors 1-66358-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-66358-4 is a socket contact designed for use in the Multimate III+ connector series. This component is a stamped brass socket contact with tin-lead finish, rated for 14-18 AWG wire gauges and terminated via crimp connection. The part is classified as obsolete, necessitating identification of active equivalent and substitute components to maintain design continuity and ensure procurement availability for new and legacy applications.

Substiute Parts

1-66358-4

TE Connectivity AMP ConnectorsIn Stock: 8041-66358-4 Datasheet

Current PartRFQ

1-66358-6

TE Connectivity AMP ConnectorsIn Stock: 202231-66358-6 Datasheet

DirectRFQ

0945180201

MolexIn Stock: 450270945180201 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-66358-4 is determined by alignment of the following critical parameters:

Primary Substitution Criteria:

• Wire gauge compatibility: 14-18 AWG
• Contact termination method: Crimp
• Contact type: Socket
• Contact material: Brass
• Contact finish thickness: 50.0µin (1.27µm)
• Moisture sensitivity level: 1 (Unlimited)

Direct Equivalent Classification: The 1-66358-6 qualifies as a direct equivalent within the same Multimate III+ series. This part maintains identical wire gauge, termination method, contact type, material, and finish thickness specifications. The primary distinction is the contact finish composition (tin versus tin-lead) and active product status.

Similar Substitute Classification: The Molex 0945180201 functions as a similar substitute based on shared wire gauge, termination method, contact material, and finish thickness parameters. This part operates within a different connector series (High Normal Force) and employs a blade-type contact configuration rather than a socket configuration. The contact finish thickness differs at 100.0µin (2.54µm).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Series Application): The 1-66358-6 is the primary substitute for the obsolete 1-66358-4. Both components operate within the Multimate III+ connector series and maintain identical electrical and mechanical specifications for wire gauge, termination, contact material, and finish thickness. The 1-66358-6 holds active product status and achieves ROHS3 compliance, addressing regulatory requirements that the original part does not satisfy. The transition from tin-lead to tin finish does not alter functional performance within the specified parameters.

For Cross-Series Application: The Molex 0945180201 serves as a similar substitute when connector series compatibility permits. This component maintains the same wire gauge, termination method, contact material, and MSL rating. The contact finish thickness is increased to 100.0µin (2.54µm), and the contact configuration differs (blade-type female socket versus stamped socket). This part achieves ROHS3 compliance and holds active product status. Cross-series substitution requires verification of mechanical fit and connector housing compatibility.

Compliance Considerations: Applications requiring RoHS compliance must utilize either the 1-66358-6 or 0945180201, as the original 1-66358-4 is RoHS non-compliant. Both substitute parts achieve ROHS3 compliance and maintain EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the 1-66358-6 directly replace the 1-66358-4 in existing designs? A: Yes. Both parts share identical wire gauge (14-18 AWG), termination method (crimp), contact material (brass), and finish thickness (50.0µin). The 1-66358-6 is the active equivalent within the same Multimate III+ series. The finish composition change from tin-lead to tin does not affect electrical or mechanical performance within the specified parameters.

Q: What is the primary difference between the 1-66358-4 and 1-66358-6? A: The 1-66358-4 is obsolete with tin-lead finish and RoHS non-compliant status. The 1-66358-6 is active with tin finish and ROHS3 compliance. Both maintain identical wire gauge, termination, contact material, and finish thickness specifications.

Q: When should the Molex 0945180201 be considered as a substitute? A: The 0945180201 functions as a similar substitute when the application permits cross-series connector use. This part maintains 14-18 AWG wire gauge, crimp termination, brass material, and MSL 1 rating. The contact configuration differs (blade-type versus stamped socket), and the finish thickness is increased to 100.0µin. Mechanical fit verification is required for cross-series applications.

Q: Does the increased contact finish thickness of the 0945180201 affect compatibility? A: The 0945180201 features 100.0µin (2.54µm) finish thickness compared to 50.0µin (1.27µm) for the original part. This parameter difference reflects the distinct connector series design. Compatibility depends on connector housing specifications and mechanical fit requirements, which must be verified for the specific application.

Q: Are both substitute parts available in the same packaging format? A: The 1-66358-6 is available in Cut Tape (CT) packaging. The 0945180201 is also available in Cut Tape (CT) packaging. Packaging specifications should be confirmed based on procurement and assembly requirements.

Q: What is the inventory status for these substitute parts? A: The 1-66358-6 has 20,129 pieces in stock. The 0945180201 has 44,989 pieces in stock. Both parts maintain active product status with established supply availability.

Q: Do the substitute parts maintain the same moisture sensitivity level? A: Yes. All three parts—1-66358-4, 1-66358-6, and 0945180201—maintain MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.