TE Connectivity 644465-6 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644465-6 is a 6-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete or ribbon cable. This connector features a tin-lead contact finish, polarizing key, and feed-through capability, with free-hanging in-line mounting via locking ramp fastening. The part is currently active in production with 780 pieces in stock. Substitute parts are identified to address inventory availability, compliance requirements, or packaging preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

644465-6

TE Connectivity AMP ConnectorsIn Stock: 871644465-6 Datasheet

Current PartRFQ

3-644465-6

TE Connectivity AMP ConnectorsIn Stock: 51833-644465-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 3-644465-6 is classified as a direct equivalent based on the following critical parameters that determine substitution eligibility:

Matching Parameters:

• Connector type: Rectangular receptacle
• Number of positions: 6
• Pitch: 0.156" (3.96mm)
• Number of rows: 1
• Contact type: Female socket
• Cable termination: IDC
• Wire gauge: 18 AWG
• Mounting type: Free hanging (in-line)
• Fastening type: Locking ramp
• Contact finish thickness: 80.0µin (2.03µm)
• Features: Feed through, polarizing key
• Series: MTA-156
• Manufacturer: TE Connectivity AMP Connectors

Distinguishing Characteristics: The primary difference between the main part and substitute is the contact finish specification. The main part 644465-6 features a tin-lead contact finish, while the substitute part 3-644465-6 features a tin contact finish. Additionally, the substitute part carries RoHS compliance status, whereas the main part is RoHS non-compliant. The substitute part is available in bulk packaging with significantly higher inventory (5101 pieces).

Parameter Comparison

Engineering Selection Recommendations

For RoHS-Compliant Applications: Select part 3-644465-6. This substitute meets RoHS compliance requirements while maintaining all electrical and mechanical specifications of the main part. The tin contact finish is compliant with lead-free requirements.

For Legacy or Non-Regulated Applications: Either part 644465-6 or 3-644465-6 is acceptable. The main part 644465-6 with tin-lead contact finish may be preferred for applications with established qualification histories using tin-lead finishes.

For High-Volume Requirements: Part 3-644465-6 is recommended due to significantly higher inventory availability (5101 pieces versus 780 pieces) and bulk packaging option, reducing procurement lead times and handling costs.

For Moisture-Sensitive Environments: Both parts carry identical Moisture Sensitivity Level 1 (Unlimited) ratings, indicating equivalent performance in moisture-sensitive applications.

For Export or Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications, ensuring equivalent regulatory treatment.

Frequently Asked Questions (FAQ)

Q: Can 3-644465-6 be used as a direct replacement for 644465-6?

A: Yes. Both parts are electrically and mechanically equivalent within the MTA-156 series. They share identical connector geometry, contact configuration, pitch, termination method, and wire gauge specifications. The primary difference is the contact finish material (tin versus tin-lead) and RoHS compliance status.

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

A: The contact finish material affects compliance certifications and environmental regulations. Tin-lead finishes (644465-6) are non-compliant with RoHS directives. Tin finishes (3-644465-6) are RoHS-compliant. Both finishes provide equivalent electrical conductivity and contact resistance at the specified thickness of 80.0µin (2.03µm).

Q: Are there mechanical compatibility issues when substituting between these parts?

A: No. Both parts maintain identical mechanical specifications: 6-position configuration, 0.156" pitch, single-row layout, free-hanging in-line mounting, and locking ramp fastening. They are mechanically interchangeable in all applications.

Q: Does the packaging difference affect part performance?

A: No. The packaging difference (standard versus bulk) is a logistics consideration only. Part 3-644465-6 is available in bulk packaging with higher inventory, but the connector itself performs identically to 644465-6 in all electrical and mechanical applications.

Q: Are both parts suitable for IDC termination with 18 AWG cable?

A: Yes. Both parts are specified for IDC termination with 18 AWG discrete or ribbon cable. The IDC contact design and wire gauge compatibility are identical between the two parts.

Q: What is the Moisture Sensitivity Level, and does it differ between parts?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating they do not require special moisture control during storage, handling, or assembly. This specification is identical for both parts.

Q: Which part should be selected for new designs?

A: Part 3-644465-6 is recommended for new designs due to RoHS compliance status, higher inventory availability, and bulk packaging options. This part meets current regulatory requirements and provides better supply chain continuity.