TE Connectivity 66594-2 Socket Contact Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 66594-2 is a socket contact designed for the Multimate VI connector series. This stamped brass contact with gold finish is rated for 20-24 AWG wire gauges and utilizes crimp termination. The part is currently active in production status. Identification of equivalent and substitute parts is necessary to support procurement flexibility, manage inventory optimization, and ensure design continuity across manufacturing batches and supply chain variations.

Substiute Parts

66594-2

TE Connectivity AMP ConnectorsIn Stock: 104066594-2 Datasheet

Current PartRFQ

66594-4

TE Connectivity AMP ConnectorsIn Stock: 490266594-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between TE Connectivity 66594-2 and 66594-4 is based on functional equivalence across the following critical parameters:

Matching Parameters:

• Identical series designation (Multimate VI)
• Identical contact type (Socket)
• Identical wire gauge rating (20-24 AWG)
• Identical termination method (Crimp)
• Identical contact material (Brass)
• Identical contact finish (Gold)
• Identical contact finish thickness (30.0µin / 0.76µm)
• Identical manufacturing type (Stamped)
• Identical moisture sensitivity level (MSL 1)
• Identical base product number (66594)

Both parts are manufactured by TE Connectivity AMP Connectors and share the same functional specifications for connector socket applications. The parts are interchangeable for applications requiring Multimate VI series socket contacts with the specified electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

66594-2 Selection Criteria: The 66594-2 is suitable for applications where RoHS non-compliance is acceptable or where legacy system compatibility is required. This part maintains active production status and is available in bulk packaging.

66594-4 Selection Criteria: The 66594-4 is the preferred substitute for new designs and applications requiring regulatory compliance. This part is ROHS3 compliant, addressing environmental and regulatory requirements for electronic components in restricted substance applications. The 66594-4 maintains identical functional specifications to the 66594-2 while providing enhanced compliance posture. Inventory availability for 66594-4 is significantly higher (4835 pcs versus 986 pcs), supporting procurement reliability.

Compliance Consideration: The primary differentiator between these parts is RoHS compliance status. Both parts are functionally equivalent for Multimate VI socket contact applications. Selection between these parts should be based on regulatory requirements of the end application and system design constraints.

Frequently Asked Questions (FAQ)

Q: Are 66594-2 and 66594-4 mechanically interchangeable? A: Yes. Both parts are socket contacts for the Multimate VI series with identical stamped construction, brass material, and gold finish specifications. They share the same wire gauge rating (20-24 AWG) and crimp termination method.

Q: What is the primary difference between these two parts? A: The 66594-4 is ROHS3 compliant, while the 66594-2 is RoHS non-compliant. All other electrical and mechanical parameters are identical.

Q: Can I use 66594-4 as a direct replacement for 66594-2 in existing assemblies? A: Yes. The 66594-4 is functionally equivalent and can be used as a direct substitute. The ROHS3 compliance of the 66594-4 provides additional regulatory alignment without compromising performance characteristics.

Q: Are there any performance differences between these contacts? A: No. Both parts have identical contact finish thickness (30.0µin / 0.76µm), material composition (brass with gold finish), and moisture sensitivity rating (MSL 1). Performance in Multimate VI connector applications is equivalent.

Q: What packaging format is available for these parts? A: Both parts are supplied in bulk packaging, suitable for high-volume manufacturing and assembly operations.

Q: Which part should I specify for new product designs? A: For new designs, the 66594-4 is recommended due to ROHS3 compliance status, which aligns with current regulatory standards for electronic components. Both parts maintain active production status.

Q: Is the contact finish thickness the same on both parts? A: Yes. Both the 66594-2 and 66594-4 have a gold contact finish thickness of 30.0µin (0.76µm), ensuring equivalent electrical contact characteristics and corrosion resistance.