TE Connectivity 1-644565-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644565-2 is a 12-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 28 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as obsolete. Due to its obsolete product status, identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production and field service applications.

Substiute Parts

1-644565-2

TE Connectivity AMP ConnectorsIn Stock: 7451-644565-2 Datasheet

Current PartRFQ

4-644565-2

TE Connectivity AMP ConnectorsIn Stock: 8134-644565-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-644565-2 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (12)
• Pitch (0.100" / 2.54mm)
• Cable termination method (IDC)
• Wire gauge compatibility (28 AWG)

Mechanical Parameters:

• Mounting configuration (Free Hanging In-Line, Right Angle)
• Fastening mechanism (Locking Ramp)
• Series designation (MTA-100)

Physical Parameters:

• Contact finish thickness (80.0µin / 2.03µm)
• Color (Green)

The substitute part 4-644565-2 maintains identical electrical and mechanical specifications while differing in contact finish composition (Tin versus Tin-Lead) and product status (Active versus Obsolete). This substitution is valid where RoHS compliance requirements permit the transition from tin-lead to tin contact finish.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 4-644565-2

The 4-644565-2 is the direct substitute for the obsolete 1-644565-2. Selection of this substitute is based on the following engineering criteria:

Product Status Consideration: The 1-644565-2 is classified as obsolete, making the active-status 4-644565-2 the appropriate replacement for ongoing procurement and design continuity.

Compliance Transition: The 4-644565-2 is RoHS compliant, whereas the 1-644565-2 is RoHS non-compliant. This transition from tin-lead to tin contact finish aligns with current regulatory requirements and industry standards for new designs and production runs.

Electrical and Mechanical Equivalence: All electrical parameters (connector type, contact type, position count, pitch, termination method, wire gauge) and mechanical parameters (mounting type, fastening mechanism, series designation) are identical between the two parts. This ensures direct functional interchangeability in circuit applications.

Contact Finish Difference: The change from tin-lead to tin contact finish does not affect the electrical performance or mechanical compatibility of the connector. Both finishes provide equivalent contact resistance and durability characteristics at the specified finish thickness of 80.0µin (2.03µm).

Use the 4-644565-2 for all new designs, production restocking, and field service applications where the 1-644565-2 is currently specified.

Frequently Asked Questions (FAQ)

Q: Can the 4-644565-2 be used as a direct replacement for the 1-644565-2 in existing assemblies?

A: Yes. The 4-644565-2 is electrically and mechanically equivalent to the 1-644565-2. All critical parameters including connector type, position count, pitch, termination method, wire gauge, mounting configuration, and fastening mechanism are identical. The connector will function identically in the same circuit application.

Q: What is the difference between the tin-lead finish on the 1-644565-2 and the tin finish on the 4-644565-2?

A: The primary difference is the contact finish composition. The 1-644565-2 uses tin-lead plating, while the 4-644565-2 uses tin plating. Both finishes are applied to the same thickness (80.0µin / 2.03µm) and provide equivalent electrical contact resistance and mechanical durability. The tin finish on the 4-644565-2 reflects compliance with RoHS regulations that restrict lead content in electronic components.

Q: Why is the 1-644565-2 listed as obsolete?

A: The 1-644565-2 is classified as obsolete due to its tin-lead contact finish, which does not comply with current RoHS standards. TE Connectivity has transitioned this product line to the RoHS-compliant 4-644565-2 variant with tin contact finish.

Q: Are there any compatibility issues when transitioning from 1-644565-2 to 4-644565-2?

A: No compatibility issues exist. The connectors are mechanically and electrically interchangeable. Both are MTA-100 series receptacles with identical pitch, position count, mounting type, and fastening mechanism. The change in contact finish does not affect performance in standard applications.

Q: What is the packaging difference between these two parts?

A: The 1-644565-2 packaging is not specified in the available documentation. The 4-644565-2 is supplied in bulk packaging. Confirm specific packaging requirements with your procurement department or TE Connectivity for the 1-644565-2 if needed for legacy applications.

Q: Can the 4-644565-2 be used in applications requiring RoHS compliance?

A: Yes. The 4-644565-2 is RoHS compliant, making it suitable for all applications subject to RoHS regulations. The 1-644565-2, being RoHS non-compliant, cannot be used in RoHS-regulated applications.

Q: Are both connectors compatible with 28 AWG discrete and ribbon cable?

A: Yes. Both the 1-644565-2 and 4-644565-2 support IDC termination with 28 AWG discrete or ribbon cable. The wire gauge and termination method are identical across both parts.