TE Connectivity 644083-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644083-4 is a 4-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish, closed-end design, and locking ramp fastening. The part is currently active in production with 1030 units in stock.

Substitute parts are identified when equivalent electrical and mechanical specifications are maintained across connector geometry, contact configuration, termination method, and wire gauge compatibility. Alternative part numbers may offer different packaging, compliance certifications, or contact finish specifications while preserving core functional compatibility.

Substiute Parts

644083-4

TE Connectivity AMP ConnectorsIn Stock: 1064644083-4 Datasheet

Current PartRFQ

3-644083-4

TE Connectivity AMP ConnectorsIn Stock: 22803-644083-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 644083-4 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• 4-position configuration with 0.100" (2.54mm) pitch
• Female socket contact type
• 22 AWG wire gauge capacity
• IDC termination method

Mechanical Compatibility Parameters:

• Single-row rectangular receptacle geometry
• Free hanging (in-line) and right-angle mounting capability
• Locking ramp fastening mechanism
• Closed-end design
• Black color housing

Material & Environmental Parameters:

• Contact finish thickness of 80.0µin (2.03µm)
• Moisture Sensitivity Level 1 (unlimited exposure tolerance)
• MTA-100 series classification

Substitute parts maintain all electrical and mechanical specifications while potentially differing in contact finish composition (tin versus tin-lead), packaging configuration, or regulatory compliance certifications. These variations do not affect functional interchangeability in applications requiring 4-position IDC receptacle connectors rated for 22 AWG cable.

Parameter Comparison

Engineering Selection Recommendations

Both the 644083-4 and 3-644083-4 are active production parts from TE Connectivity AMP Connectors within the MTA-100 series. Selection between these parts is determined by application-specific compliance requirements and contact finish specifications.

644083-4 Selection Criteria:

• Applications requiring tin-lead contact finish
• Environments where RoHS compliance is not mandated
• Legacy system compatibility where tin-lead specifications are established

3-644083-4 Selection Criteria:

• Applications requiring ROHS3 compliance
• New designs subject to European Union Restriction of Hazardous Substances regulations
• Tin contact finish specifications
• Higher inventory availability (2178 units versus 1030 units)

Both parts maintain identical electrical and mechanical specifications, including 4-position configuration, 0.100" pitch, IDC termination for 22 AWG cable, locking ramp fastening, and closed-end design. The primary differentiation is contact finish composition and regulatory compliance certification. Functional interchangeability is established across all connector geometry, contact configuration, and termination parameters.

Frequently Asked Questions (FAQ)

Q: Are the 644083-4 and 3-644083-4 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 4-position configuration, 0.100" (2.54mm) pitch, single-row rectangular receptacle geometry, free hanging (in-line) and right-angle mounting capability, locking ramp fastening, and closed-end design. Physical dimensions and mounting interfaces are equivalent.

Q: What is the difference between tin-lead and tin contact finish in these connectors?

A: The 644083-4 features tin-lead contact finish while the 3-644083-4 features tin contact finish. Both maintain 80.0µin (2.03µm) finish thickness. The contact finish composition affects regulatory compliance and environmental suitability but does not alter electrical performance or mechanical compatibility in IDC termination applications.

Q: Can the 3-644083-4 substitute for the 644083-4 in existing designs?

A: The 3-644083-4 is functionally equivalent to the 644083-4 across all electrical and mechanical parameters. Substitution is valid when ROHS3 compliance is acceptable or required. Applications with explicit tin-lead specifications require the original 644083-4 part number.

Q: What does IDC termination mean for these connectors?

A: IDC (Insulation Displacement Contact) termination allows direct connection of 22 AWG discrete or ribbon cable without stripping insulation. The connector contacts pierce the cable insulation during insertion, establishing electrical connection. Both parts support this termination method.

Q: Are these connectors suitable for ribbon cable applications?

A: Yes. Both the 644083-4 and 3-644083-4 accept discrete or ribbon cable at 22 AWG wire gauge. The IDC termination method accommodates standard ribbon cable configurations within the specified gauge range.

Q: What is the significance of Moisture Sensitivity Level 1?

A: MSL 1 indicates unlimited moisture exposure tolerance. These connectors do not require special moisture control during storage, handling, or installation. No baking or desiccant storage procedures are necessary.

Q: Why does the 3-644083-4 have higher inventory availability?

A: The 3-644083-4 is packaged in bulk configuration with 2178 units in stock compared to 1030 units for the 644083-4. Bulk packaging typically supports higher volume production and distribution channels.

Q: Can these connectors be used in applications requiring lead-free compliance?

A: The 3-644083-4 is ROHS3 compliant with tin contact finish, suitable for lead-free applications. The 644083-4 with tin-lead finish is not applicable for RoHS compliance. Application requirements determine which part number is appropriate.