TE Connectivity AMP Connectors 66683-4 Socket Contact Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 66683-4 is an active socket contact designed for the AMPLIMITE HDP-20 connector series. This stamped phosphor bronze contact with gold crimp termination accommodates wire gauges from 24 to 28 AWG. The part is supplied in bulk packaging and maintains Moisture Sensitivity Level 1 (unlimited shelf life). Socket contacts of this specification are essential components in high-density connector assemblies where reliable electrical termination and consistent contact resistance are required across multiple mating cycles.

Substitute parts are identified to address packaging format variations and inventory availability while maintaining electrical and mechanical compatibility within the AMPLIMITE HDP-20 series.

Substiute Parts

66683-4

TE Connectivity AMP ConnectorsIn Stock: 97666683-4 Datasheet

Current PartRFQ

66683-2

TE Connectivity AMP ConnectorsIn Stock: 4248466683-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the TE Connectivity AMP Connectors 66683 base product family is determined by strict equivalence across all critical electrical and mechanical parameters. The 66683-4 and 66683-2 share identical specifications for series designation, contact type (socket), wire gauge range (24-28 AWG), termination method (crimp), base material (phosphor bronze), surface finish (gold), and finish thickness (30.0µin). Both parts are classified as stamped contacts and maintain the same Moisture Sensitivity Level 1 rating.

The primary distinction between these parts is packaging format: 66683-4 is supplied in bulk packaging, while 66683-2 is supplied in cut tape (CT) packaging. This packaging difference does not affect the electrical or mechanical performance of the individual contact. Both parts maintain active product status and are manufactured to identical dimensional and performance specifications within the AMPLIMITE HDP-20 connector series.

Substitution is valid when packaging format flexibility is acceptable to the application or assembly process.

Parameter Comparison

Engineering Selection Recommendations

Both 66683-4 and 66683-2 are active products manufactured by TE Connectivity AMP Connectors and are suitable for AMPLIMITE HDP-20 connector applications requiring 24-28 AWG socket contacts with gold-plated crimp termination.

66683-4 (Bulk Packaging): Select this part number when bulk packaging is required for high-volume assembly operations or when inventory management systems accommodate loose contact storage and handling.

66683-2 (Cut Tape Packaging): Select this part number when cut tape packaging is preferred for automated pick-and-place assembly equipment, tape-based component handling systems, or when smaller quantity dispensing is required per assembly cycle. This part carries ROHS3 compliance certification, which may be required for specific end-use applications or regional regulatory requirements.

Both parts maintain identical electrical performance, mechanical compatibility, and environmental ratings. Selection between these part numbers is determined by packaging format requirements and assembly process compatibility rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can 66683-2 (cut tape) be used as a direct replacement for 66683-4 (bulk)?

A: Yes. Both parts are electrically and mechanically identical socket contacts within the AMPLIMITE HDP-20 series. The difference is packaging format only. Substitution is valid when the receiving assembly process can accommodate cut tape packaging.

Q: What is the significance of the different RoHS status between these parts?

A: The 66683-4 lists RoHS status as "Not applicable," while 66683-2 is "ROHS3 Compliant." This difference reflects the packaging and certification documentation provided by the manufacturer. For applications requiring ROHS3 compliance documentation, 66683-2 is the appropriate selection.

Q: Are the electrical specifications identical between 66683-4 and 66683-2?

A: Yes. Both parts feature identical contact material (phosphor bronze), finish (gold at 30.0µin thickness), wire gauge accommodation (24-28 AWG), termination method (crimp), and series designation (AMPLIMITE HDP-20). Electrical performance and contact resistance characteristics are equivalent.

Q: What does the base product number 66683 represent?

A: The base product number 66683 identifies the core contact design within the TE Connectivity AMP Connectors portfolio. The suffix numbers (-4 and -2) differentiate packaging formats and associated certifications while maintaining the same underlying contact specification.

Q: Can these contacts be used with wire gauges outside the 24-28 AWG range?

A: No. Both 66683-4 and 66683-2 are specified for 24-28 AWG wire only. Using wire outside this gauge range will result in improper crimp formation and unreliable electrical connection.

Q: What is Moisture Sensitivity Level 1 (Unlimited)?

A: MSL 1 (Unlimited) indicates that these contacts have no moisture sensitivity restrictions and do not require special storage conditions or floor life limitations. They can be stored and handled under standard industrial conditions indefinitely.

Q: Are these parts suitable for high-density connector applications?

A: Yes. Both parts are designed for the AMPLIMITE HDP-20 series, which is engineered for high-density connector applications. The stamped construction and gold-plated finish support reliable performance in compact connector assemblies with multiple mating cycles.