TE Connectivity 644083-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644083-3 is a 3-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 and is classified as a closed-end receptacle with free-hanging, right-angle mounting capability and locking ramp fastening. The part is currently active in production with 1106 units in stock. Substitute parts are identified to address inventory availability, packaging preferences, or compliance requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

644083-3

TE Connectivity AMP ConnectorsIn Stock: 1143644083-3 Datasheet

Current PartRFQ

3-644083-3

TE Connectivity AMP ConnectorsIn Stock: 100503-644083-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part 644083-3 and the identified equivalent 3-644083-3 is based on strict electrical and mechanical parameter alignment. Both connectors maintain identical specifications across all critical substitution criteria:

Key Parameters Determining Substitution Eligibility:

• Connector type, position count, and pitch (0.100")
• Contact type and gender (female socket)
• Cable termination method (IDC) and wire gauge (22 AWG)
• Mounting configuration (free hanging, right angle) and fastening mechanism (locking ramp)
• Physical features (closed end, black color)
• Series designation (MTA-100)
• Moisture sensitivity level (MSL 1)

The primary distinction between these parts is the contact finish specification and packaging format. The main part 644083-3 features tin-lead contact finish, while the substitute 3-644083-3 features tin contact finish. Both maintain the same contact finish thickness of 80.0µin (2.03µm), ensuring equivalent electrical performance and mating characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both 644083-3 and 3-644083-3 are active production parts from TE Connectivity AMP Connectors and are electrically and mechanically interchangeable for applications requiring 3-position, 0.100" pitch IDC rectangular receptacle connectors with 22 AWG wire termination.

Selection Criteria:

The substitute part 3-644083-3 offers RoHS compliance certification, whereas the main part 644083-3 carries a "Not applicable" RoHS status. For applications subject to RoHS regulatory requirements, the 3-644083-3 is the appropriate selection. Both parts maintain identical electrical performance, contact finish thickness, and mechanical compatibility.

The 3-644083-3 is supplied in bulk packaging with significantly higher inventory availability (9942 units versus 1106 units), making it suitable for high-volume production requirements or extended supply chain planning.

The contact finish difference (tin-lead versus tin) does not affect substitution eligibility, as both finishes provide equivalent contact resistance, mating durability, and electrical performance at the specified contact finish thickness of 80.0µin (2.03µm).

Frequently Asked Questions (FAQ)

Q: Are 644083-3 and 3-644083-3 directly interchangeable in circuit applications?

A: Yes. Both connectors are electrically and mechanically identical across all critical parameters including connector type, position count, pitch, contact type, termination method, wire gauge, and mounting configuration. They are direct substitutes for one another.

Q: What is the difference between tin-lead and tin contact finishes on these connectors?

A: The main part features tin-lead contact finish while the substitute features tin contact finish. Both maintain the same contact finish thickness of 80.0µin (2.03µm). The contact finish thickness is the primary determinant of electrical performance and mating durability. Both finishes are suitable for IDC termination with 22 AWG wire.

Q: Does the RoHS compliance difference affect part selection?

A: RoHS compliance is a regulatory and supply chain consideration rather than an electrical or mechanical one. The 3-644083-3 is RoHS compliant, while the 644083-3 carries "Not applicable" status. For applications or markets requiring RoHS compliance, the 3-644083-3 must be selected. Both parts perform identically in circuit operation.

Q: What does "Closed End" mean for these receptacle connectors?

A: Closed end indicates that the connector housing has a sealed or enclosed design at the mating face, preventing accidental contact with internal terminals and providing strain relief for the cable entry point.

Q: Can these connectors accommodate both discrete and ribbon cable?

A: Yes. Both connectors support IDC termination for discrete individual wires or flat ribbon cable, all at 22 AWG wire gauge. The IDC termination method allows the connector to pierce and grip the wire insulation without requiring pre-stripping.

Q: What is the significance of the 0.100" (2.54mm) pitch specification?

A: Pitch defines the center-to-center spacing between adjacent contact positions. The 0.100" pitch is a standard spacing for MTA-100 series connectors and determines physical compatibility with mating connectors and PCB layouts. Both substitute parts maintain this identical pitch.

Q: Why is the Moisture Sensitivity Level (MSL) rated as 1 (Unlimited)?

A: MSL 1 indicates the connector has unlimited shelf life and requires no special moisture control or baking procedures prior to assembly. This is the least restrictive moisture sensitivity classification and simplifies inventory management and production handling.

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

A: The main part 644083-3 has unspecified packaging, while the substitute 3-644083-3 is supplied in bulk packaging. Bulk packaging typically provides higher unit quantities per container, reducing packaging material and cost for high-volume applications.