TE Connectivity 644466-6 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644466-6 is a 6-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 20 AWG discrete or ribbon cable. This connector features a tin-lead contact finish, feed-through capability, and polarizing key for secure mating. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

644466-6

TE Connectivity AMP ConnectorsIn Stock: 995644466-6 Datasheet

Current PartRFQ

3-644466-6

TE Connectivity AMP ConnectorsIn Stock: 16033-644466-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 644466-6 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type (Receptacle)
• Number of positions (6)
• Pitch specification (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge compatibility (20 AWG)
• Mounting configuration (Free Hanging In-Line)
• Fastening mechanism (Locking Ramp)
• Series designation (MTA-156)
• Contact finish thickness (80.0µin / 2.03µm)
• Functional features (Feed Through, Polarizing Key)

The substitute part 3-644466-6 maintains complete electrical and mechanical compatibility with the original 644466-6 across all specified parameters. The primary distinction is the contact finish material (tin versus tin-lead) and product status transition from obsolete to active production.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-644466-6 is the direct functional equivalent for the obsolete 644466-6 model. Selection of the substitute part is based on the following engineering criteria:

Product Status: The original 644466-6 is classified as obsolete, creating supply chain risk for ongoing production and field service requirements. The 3-644466-6 maintains active production status, ensuring long-term availability and supply continuity.

Regulatory Compliance: The substitute part 3-644466-6 is ROHS3 compliant, whereas the original 644466-6 is RoHS non-compliant. For applications subject to RoHS directives or customer specifications requiring RoHS compliance, the substitute part satisfies these regulatory requirements.

Contact Finish Material: The original part features tin-lead contact finish, while the substitute employs tin contact finish. Both finishes maintain the specified contact finish thickness of 80.0µin (2.03µm) and are compatible with IDC termination and 20 AWG wire gauge applications.

Electrical and Mechanical Compatibility: All critical electrical and mechanical parameters remain identical between the original and substitute parts, including connector type, position count, pitch, contact type, termination method, wire gauge, mounting configuration, and fastening mechanism. The substitute part is a direct replacement without design modification requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3-644466-6 be used as a direct replacement for the 644466-6 in existing designs?

A: Yes. The 3-644466-6 maintains complete electrical and mechanical compatibility with the 644466-6 across all specified parameters including connector type, position count, pitch, contact type, IDC termination, wire gauge, mounting type, and fastening mechanism. No design modifications are required.

Q: What is the primary difference between the 644466-6 and 3-644466-6?

A: The primary differences are product status and contact finish material. The 644466-6 is obsolete with tin-lead contact finish and RoHS non-compliant status. The 3-644466-6 is active production with tin contact finish and ROHS3 compliance. Both maintain identical contact finish thickness and all other electrical and mechanical specifications.

Q: Are there compatibility concerns with the tin versus tin-lead contact finish change?

A: No compatibility concerns exist. Both tin and tin-lead finishes are specified at 80.0µin (2.03µm) thickness and are compatible with IDC termination and 20 AWG discrete or ribbon cable applications. The contact finish material does not affect mating performance or electrical characteristics for this connector type.

Q: Does the RoHS3 compliance of the 3-644466-6 affect its performance compared to the non-compliant 644466-6?

A: No. RoHS3 compliance indicates regulatory adherence to restricted substance directives and does not impact electrical or mechanical performance. The substitute part maintains identical performance characteristics while satisfying modern regulatory requirements.

Q: What is the packaging difference between these parts?

A: The original 644466-6 packaging specification is not defined in the available data. The 3-644466-6 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Are both parts from the same manufacturer and series?

A: Yes. Both parts are manufactured by TE Connectivity AMP Connectors and belong to the MTA-156 series, ensuring design consistency and interchangeability.

Q: What is the moisture sensitivity level for both parts?

A: Both the 644466-6 and 3-644466-6 have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.