TE Connectivity AMP Connectors 1-746288-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-746288-3 is a 44 Position Rectangular Receptacle Connector designed for IDC (Insulation Displacement Contact) termination with ribbon cable in the 26-28 AWG wire gauge range. This connector features a forked contact design, gold plating, and polarizing key functionality for secure mating in free-hanging inline applications.

The 1-746288-3 carries an Obsolete product status, indicating it is no longer in active production. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing system maintenance and repairs.

Substiute Parts

1-746288-3

TE Connectivity AMP ConnectorsIn Stock: 7381-746288-3 Datasheet

Current PartRFQ

1-1658622-3

TE Connectivity AMP ConnectorsIn Stock: 76351-1658622-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1-746288-3 are identified based on strict electrical and mechanical parameter equivalence within the AMP-Latch rectangular connector series. The substitution criteria are:

Critical Matching Parameters:

• Connector Type: Receptacle
• Number of Positions: 44
• Pitch: 0.100" (2.54mm)
• Number of Rows: 2
• Row Spacing: 0.100" (2.54mm)
• Contact Type: Forked
• Cable Termination: IDC
• Wire Gauge: 26-28 AWG
• Wire Type: Ribbon Cable
• Mounting Type: Free Hanging (In-Line)
• Features: Feed Through, Polarizing Key
• Contact Finish Thickness: 30.0µin (0.76µm)
• Series: AMP-Latch

The substitute part 1-1658622-3 meets all critical matching parameters and maintains full functional and mechanical compatibility with the original 1-746288-3 connector.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 1-1658622-3 provides direct functional replacement for the obsolete 1-746288-3 connector. Both parts maintain identical electrical and mechanical specifications across all critical parameters including connector geometry, contact configuration, termination method, and wire gauge compatibility.

Product Status Consideration: The 1-746288-3 is classified as Obsolete, while the 1-1658622-3 maintains Active product status. This distinction ensures continued availability, manufacturing support, and supply chain reliability for the substitute part.

Compliance Advantage: The 1-1658622-3 achieves ROHS3 compliance, whereas the original 1-746288-3 is RoHS non-compliant. Selection of the substitute part aligns with current regulatory requirements for electronic component manufacturing and distribution.

Contact Finish Flexibility: The 1-1658622-3 offers Gold or Gold-Palladium contact finish options while maintaining the specified 30.0µin (0.76µm) thickness. This flexibility accommodates varying application requirements without compromising electrical performance or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Are the 1-746288-3 and 1-1658622-3 connectors mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.100"), row configuration (2 rows with 0.100" spacing), position count (44), and mounting type (free hanging inline). The forked contact design and polarizing key features are identical, ensuring direct mechanical compatibility.

Q: Can the 1-1658622-3 terminate the same ribbon cable specifications as the 1-746288-3?

A: Yes. Both connectors use IDC termination for 26-28 AWG ribbon cable. The contact geometry and termination mechanism are equivalent, supporting identical wire gauge and cable type applications.

Q: What is the significance of the contact finish difference between Gold and Gold-Palladium?

A: Both finishes maintain the specified 30.0µin (0.76µm) thickness and provide equivalent electrical performance. The Gold-Palladium option in the 1-1658622-3 offers enhanced durability in certain environmental conditions while maintaining full compatibility with the original Gold finish specification.

Q: Why is the 1-1658622-3 preferred over the 1-746288-3 for new designs?

A: The 1-1658622-3 carries Active product status and ROHS3 compliance, ensuring ongoing manufacturing support and regulatory alignment. The 1-746288-3 is Obsolete and RoHS non-compliant, making it unsuitable for new applications and subject to supply discontinuation.

Q: Are there any electrical performance differences between these connectors?

A: No. Both connectors maintain identical electrical specifications including contact finish thickness, contact type, and termination method. Electrical performance is equivalent across all operating parameters.

Q: What packaging options are available for the substitute part?

A: The 1-1658622-3 is supplied in Bulk packaging, whereas the original 1-746288-3 packaging specification is not defined. Bulk packaging accommodates high-volume manufacturing and assembly operations.