TE Connectivity 644466-5 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644466-5 is a 5-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

644466-5

TE Connectivity AMP ConnectorsIn Stock: 831644466-5 Datasheet

Current PartRFQ

3-644466-5

TE Connectivity AMP ConnectorsIn Stock: 9833-644466-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 644466-5 is determined by strict equivalence across the following critical parameters:

Electrical and Mechanical Compatibility Parameters:

• Series designation (MTA-156)
• Connector type (Receptacle)
• Number of positions (5)
• Pitch specification (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge rating (20 AWG)
• Contact type (Female Socket)
• Mounting configuration (Free Hanging In-Line)
• Fastening mechanism (Locking Ramp)
• Functional features (Feed Through, Polarizing Key)

The substitute part 3-644466-5 maintains identical electrical and mechanical specifications to the main part. The primary distinction is the contact finish material: the substitute uses tin finish instead of tin-lead finish, and carries active product status with RoHS3 compliance, whereas the original part is obsolete and RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 3-644466-5

The part 3-644466-5 is the direct functional equivalent of 644466-5 and is the appropriate selection for all new designs and production applications. This substitute maintains complete electrical and mechanical compatibility across all critical parameters including connector type, position count, pitch, termination method, and wire gauge specifications.

Compliance and Status Advantages:

The substitute part carries active product status, ensuring long-term availability and supply chain continuity. The RoHS3 compliance of 3-644466-5 aligns with current regulatory requirements for electronic components in most markets, whereas the original 644466-5 is RoHS non-compliant and obsolete.

Contact Finish Consideration:

The substitute employs tin finish rather than tin-lead finish. Both finishes maintain the specified contact finish thickness of 80.0µin (2.03µm) and are suitable for IDC termination with 20 AWG cable. The tin finish of the substitute part reflects current manufacturing standards and environmental compliance practices.

Inventory and Availability:

The substitute part 3-644466-5 has 929 pieces in new original stock, compared to 755 pieces of the obsolete main part. Selection of the active substitute ensures access to current inventory and future replenishment capability.

Frequently Asked Questions (FAQ)

Q: Can 3-644466-5 be used as a direct replacement for 644466-5 in existing assemblies?

A: Yes. The 3-644466-5 maintains identical electrical and mechanical specifications across all critical parameters: 5-position MTA-156 series receptacle, 0.156" pitch, IDC termination, 20 AWG wire gauge, female socket contacts, locking ramp fastening, and feed-through with polarizing key features. Physical form factor and mating interface are identical.

Q: What is the difference between the tin-lead finish of 644466-5 and the tin finish of 3-644466-5?

A: Both finishes are applied at 80.0µin (2.03µm) thickness and are suitable for IDC contact termination. The tin finish of the substitute reflects current manufacturing and environmental compliance standards. Contact resistance and electrical performance remain equivalent.

Q: Why is 644466-5 classified as obsolete?

A: The 644466-5 is no longer in active production. The 3-644466-5 represents the current active equivalent in the TE Connectivity product line and is the recommended selection for all new applications.

Q: Are there packaging differences between these parts?

A: The main part 644466-5 has unspecified packaging, while the substitute 3-644466-5 is supplied in bulk packaging. Both parts are identical in form, fit, and function.

Q: Does the RoHS3 compliance of 3-644466-5 affect compatibility?

A: No. RoHS3 compliance of the substitute part indicates adherence to current environmental and regulatory standards. This does not affect electrical or mechanical compatibility with existing designs. The substitute is suitable for applications requiring RoHS-compliant components.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both the main part and substitute are rated for discrete or ribbon cable termination using the IDC method at 20 AWG wire gauge.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or use.