TE Connectivity 644460-7 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644460-7 is a 7-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG wire. This connector features a gold-plated contact finish, closed-end design with polarizing key, and free-hanging in-line mounting configuration. The part is currently active in production status with 960 units in stock.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging configurations are required, or when compliance requirements differ between procurement specifications and application needs.

Substiute Parts

644460-7

TE Connectivity AMP ConnectorsIn Stock: 1050644460-7 Datasheet

Current PartRFQ

3-644460-7

TE Connectivity AMP ConnectorsIn Stock: 9253-644460-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 644460-7 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain identical for a part to function as a direct substitute:

Critical Parameters (Must Match Exactly):

• Connector type (Receptacle)
• Number of positions (7)
• Pitch specification (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge rating (18 AWG)
• Contact finish material (Gold)
• Mounting configuration (Free Hanging In-Line)
• Fastening mechanism (Locking Ramp)
• Series designation (MTA-156)
• Design features (Closed End, Polarizing Key)
• Contact finish thickness (30.0µin / 0.76µm)

Non-Critical Parameters (May Vary):

• Packaging configuration
• Color designation
• Inventory availability
• RoHS compliance status
• Moisture sensitivity level designation

The substitute part 3-644460-7 maintains identical electrical and mechanical specifications while differing only in packaging format (Bulk versus standard) and RoHS compliance classification.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-644460-7 is electrically and mechanically equivalent to the primary part number 644460-7. Both parts share identical specifications across all critical connector parameters including position count, pitch, contact configuration, termination method, and wire gauge rating.

Selection Basis:

The primary distinction between these parts is packaging configuration and RoHS compliance status. The 3-644460-7 is supplied in bulk packaging and carries RoHS Compliant certification, whereas the 644460-7 uses standard packaging and is RoHS non-compliant.

Selection between these equivalent parts should be based on:

1. Compliance Requirements: Applications requiring RoHS compliance must use part number 3-644460-7. Applications with no RoHS requirement may use either part.

2. Packaging Needs: Bulk packaging (3-644460-7) is suitable for high-volume manufacturing operations. Standard packaging (644460-7) is appropriate for lower-volume applications or when individual unit handling is preferred.

3. Inventory Availability: Both parts maintain active production status with adequate stock levels (960 units and 904 units respectively).

Both parts are manufactured by TE Connectivity AMP Connectors and maintain identical electrical performance, mechanical fit, and functional characteristics within the MTA-156 series connector family.

Frequently Asked Questions (FAQ)

Q: Can 3-644460-7 be used as a direct replacement for 644460-7 in existing designs?

A: Yes. The 3-644460-7 is a direct functional equivalent. All electrical and mechanical specifications are identical, including connector type, position count, pitch, contact configuration, termination method, and wire gauge. The parts are interchangeable from a circuit design and assembly perspective.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format and RoHS compliance status. The 3-644460-7 is supplied in bulk packaging and is RoHS Compliant, while the 644460-7 uses standard packaging and is RoHS non-compliant. All connector specifications remain identical.

Q: Does the bulk packaging of 3-644460-7 affect connector performance?

A: No. Packaging format does not affect electrical or mechanical performance. Bulk packaging is a supply and handling consideration only. The connector specifications, contact finish, and functional characteristics are identical regardless of packaging type.

Q: Are there any compatibility issues when mixing 644460-7 and 3-644460-7 in the same assembly?

A: No. Both parts are fully compatible. They share identical pitch, position count, contact type, and mounting configuration. They can be used interchangeably within the same circuit or assembly without modification.

Q: Which part should be selected for new designs?

A: For new designs, the selection depends on compliance requirements. If RoHS compliance is mandatory, use 3-644460-7. If RoHS compliance is not required, either part is acceptable. Both parts are active in production with stable availability.

Q: Is the gold contact finish identical on both parts?

A: Yes. Both parts feature gold contact finish with identical thickness specification of 30.0µin (0.76µm). Contact finish quality and durability are equivalent.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both 644460-7 and 3-644460-7 support IDC termination with discrete or ribbon cable at 18 AWG wire gauge. The cable type does not affect connector compatibility.

Q: What is the significance of the polarizing key feature?

A: The polarizing key prevents incorrect mating orientation. Both parts include this feature, ensuring proper connector alignment during assembly and reducing installation errors.

Q: Are there any environmental or storage differences between these parts?

A: No. Both parts carry identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special storage or handling requirements. Environmental performance and shelf life are equivalent.