TE Connectivity AMP Connectors 644383-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644383-2 is a 2 Position Rectangular Receptacle Connector designed for IDC (Insulation Displacement Contact) termination with 22 AWG wire. This connector features a tin-lead contact finish and is part of the MTA-156 series. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

644383-2

TE Connectivity AMP ConnectorsIn Stock: 792644383-2 Datasheet

Current PartRFQ

3-644383-2

TE Connectivity AMP ConnectorsIn Stock: 12383-644383-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 644383-2 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility Parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (2)
• Pitch (0.156" / 3.96mm)
• Number of rows (1)
• Mounting type (Free Hanging In-Line)
• Fastening type (Locking Ramp)

Electrical & Termination Parameters:

• Cable termination method (IDC)
• Wire gauge (22 AWG)
• Wire type (Discrete or Ribbon Cable)
• Contact finish thickness (80.0µin / 2.03µm)

Physical & Environmental Parameters:

• Features (Closed End, Polarizing Key)
• Color (Black)
• Moisture Sensitivity Level (1 - Unlimited)

The substitute part 3-644383-2 maintains full equivalence across all mechanical, electrical, and environmental parameters. The primary distinction is the contact finish material (tin versus tin-lead) and the product status transition from obsolete to active.

Parameter Comparison

Engineering Selection Recommendations

The 3-644383-2 serves as the direct active equivalent to the obsolete 644383-2. Selection of the substitute part is based on the following engineering criteria:

Product Status: The 644383-2 is classified as obsolete, while the 3-644383-2 is active. Active product status ensures ongoing manufacturer support, availability, and compliance with current industry standards.

Regulatory Compliance: The 3-644383-2 is RoHS Compliant, whereas the 644383-2 is RoHS non-compliant. This distinction is significant for applications subject to RoHS directives and environmental regulations. The substitute part meets current regulatory requirements for restricted substances.

Mechanical & Electrical Equivalence: All mechanical parameters (connector type, position count, pitch, mounting configuration, fastening mechanism) and electrical parameters (termination method, wire gauge, contact finish thickness) are identical between the main part and substitute. This ensures direct form, fit, and function compatibility.

Contact Finish Consideration: The primary technical difference is the contact finish material. The main part features tin-lead plating, while the substitute features tin plating. Both maintain the specified contact finish thickness of 80.0µin (2.03µm). The tin finish of the substitute part aligns with modern manufacturing practices and RoHS compliance requirements.

For new designs and ongoing production requiring the 644383-2 specification, the 3-644383-2 is the appropriate selection. For legacy systems currently using 644383-2 components, the 3-644383-2 provides functional equivalence with enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 3-644383-2 be used as a direct replacement for the 644383-2 in existing assemblies?

A: Yes. The 3-644383-2 maintains full mechanical and electrical equivalence to the 644383-2. All critical parameters including connector type, position count, pitch, mounting configuration, termination method, and wire gauge are identical. The substitute part is compatible with existing mating connectors and cable assemblies designed for the 644383-2.

Q: What is the significance of the contact finish difference between tin-lead and tin?

A: Both contact finishes maintain the specified thickness of 80.0µin (2.03µm) and provide equivalent electrical performance. The tin finish of the 3-644383-2 represents current manufacturing standards and is RoHS compliant, whereas the tin-lead finish of the 644383-2 is non-compliant with RoHS directives. The tin finish does not compromise electrical conductivity or contact reliability.

Q: Why is the 644383-2 classified as obsolete?

A: The 644383-2 is obsolete due to its RoHS non-compliant tin-lead contact finish. Manufacturers have transitioned to RoHS-compliant alternatives such as the 3-644383-2 to meet regulatory requirements and industry standards. The 3-644383-2 provides the same functionality with current compliance status.

Q: Are there any packaging or inventory differences between these parts?

A: Both parts are supplied with packaging designation listed as not specified in the provided data. The 644383-2 has 682 pieces in stock, while the 3-644383-2 has 1128 pieces in stock. The higher inventory level of the substitute part reflects its active product status.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence across mechanical parameters (connector type, position count, pitch, mounting type, fastening type), electrical parameters (termination method, wire gauge, contact finish thickness), and environmental parameters (moisture sensitivity level, color, features). The 3-644383-2 meets all these criteria for the 644383-2.

Q: Is the 3-644383-2 suitable for applications requiring RoHS compliance?

A: Yes. The 3-644383-2 is RoHS Compliant, making it suitable for applications and markets with RoHS requirements. The 644383-2, being RoHS non-compliant, is not appropriate for such applications.

Q: What is the Moisture Sensitivity Level (MSL) for both parts?

A: Both the 644383-2 and 3-644383-2 have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or assembly.