TE Connectivity 3-644329-6 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3-644329-6 is a 6-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG wire. This connector features a tin contact finish, closed-end design, and free-hanging in-line mounting configuration. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure long-term component availability for new designs and production support.

Substiute Parts

3-644329-6

TE Connectivity AMP ConnectorsIn Stock: 11553-644329-6 Datasheet

Current PartRFQ

3-644860-6

TE Connectivity AMP ConnectorsIn Stock: 15873-644860-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3-644329-6 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain identical for functional interchangeability:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (6)
• Pitch specification (0.156" / 3.96mm)
• Number of rows (1)
• Mounting type (Free Hanging In-Line)
• Fastening type (Locking Ramp)
• Cable termination method (IDC)
• Wire gauge compatibility (18 AWG)
• Contact finish material (Tin)
• Closed-end design feature
• MTA-156 series classification

The substitute part 3-644860-6 meets all these criteria and is therefore classified as a direct equivalent. The primary distinction between the main part and its substitute is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The 3-644860-6 is the direct equivalent substitute for the obsolete 3-644329-6. Both parts are manufactured by TE Connectivity and belong to the MTA-156 series with identical electrical and mechanical specifications.

Product Status Consideration: The 3-644329-6 is classified as obsolete, while the 3-644860-6 maintains active product status. This distinction is significant for long-term supply chain planning and component procurement strategies.

Compliance Status: The 3-644860-6 is RoHS Compliant, whereas the 3-644329-6 carries a "Not applicable" RoHS designation. For applications subject to RoHS requirements, the 3-644860-6 provides regulatory compliance assurance.

Packaging: The 3-644860-6 is supplied in bulk packaging, compared to the main part's unspecified packaging configuration. Packaging differences do not affect functional performance or electrical characteristics.

Both parts share identical moisture sensitivity levels (MSL 1 - Unlimited), export classifications (EAR99), and tariff codes (8536.69.8000), confirming full functional and regulatory interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the 3-644860-6 be used as a direct replacement for the 3-644329-6 in existing designs?

A: Yes. The 3-644860-6 is electrically and mechanically identical to the 3-644329-6 across all specified parameters, including connector type, position count, pitch, termination method, wire gauge, and contact finish. Direct substitution is supported without design modification.

Q: What is the significance of the obsolete status of the 3-644329-6?

A: Obsolete status indicates that the 3-644329-6 is no longer in active production and may face supply availability constraints. The 3-644860-6, with active product status, ensures continued component availability for production and support applications.

Q: Does the RoHS Compliant status of the 3-644860-6 affect compatibility with the 3-644329-6?

A: No. RoHS compliance is a regulatory and manufacturing process attribute that does not alter electrical or mechanical performance. The 3-644860-6 is fully compatible with applications designed for the 3-644329-6 and provides enhanced regulatory compliance for RoHS-regulated markets.

Q: Are there any differences in contact finish or plating between these two parts?

A: No. Both parts feature tin contact finish with identical thickness specifications of 80.0µin (2.03µm). Contact finish material and thickness are equivalent.

Q: What is the impact of packaging differences between these parts?

A: Packaging differences (bulk for the 3-644860-6 versus unspecified for the 3-644329-6) affect logistics and inventory management but do not influence connector performance, electrical characteristics, or mechanical fit. The connector itself remains identical.

Q: Are both parts suitable for IDC termination with 18 AWG wire?

A: Yes. Both the 3-644329-6 and 3-644860-6 are specified for IDC cable termination with 18 AWG discrete or ribbon cable. Termination compatibility is identical.

Q: What is the pitch specification, and does it affect interchangeability?

A: Both parts feature a 0.156" (3.96mm) pitch specification, which defines the center-to-center spacing between connector positions. Identical pitch ensures mechanical and electrical interchangeability with mating connectors and PCB layouts designed for the MTA-156 series.