TE Connectivity AMP Connectors 3-1437021-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-1437021-4 is a 34-position rectangular receptacle connector designed for IDC (Insulation Displacement Contact) termination with ribbon cable applications. This connector features gold-plated female socket contacts, polarizing key, and strain relief in a free-hanging in-line configuration. The part is currently active in production status. Identification of equivalent and substitute parts is necessary to support procurement flexibility, manage inventory across multiple suppliers, address component availability, and ensure design compatibility across product revisions.

Substiute Parts

3-1437021-4

TE Connectivity AMP ConnectorsIn Stock: 9713-1437021-4 Datasheet

Current PartRFQ

1-1658526-9

TE Connectivity AMP ConnectorsIn Stock: 18691-1658526-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity AMP Connectors 3-1437021-4 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility Parameters:

• 34-position configuration
• 0.100" (2.54mm) pitch spacing
• 2-row arrangement with 0.100" (2.54mm) row spacing
• Free hanging in-line mounting type
• Presence of polarizing key and strain relief features

Electrical Compatibility Parameters:

• Female socket contact type
• Gold contact finish at 30.0µin (0.76µm) thickness
• IDC ribbon cable termination method

Functional Equivalence: The substitute part 1-1658526-9 maintains identical mechanical and electrical characteristics across all critical parameters. The primary distinction is the specification of wire gauge (28-30 AWG) in the substitute part, which defines the compatible ribbon cable conductor size for IDC termination. This specification does not prevent substitution but rather clarifies the intended application range.

Parameter Comparison

Engineering Selection Recommendations

Compliance Considerations:

The substitute part 1-1658526-9 holds ROHS3 compliance status, whereas the main part 3-1437021-4 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the substitute part 1-1658526-9 is the appropriate selection. Both parts maintain identical electrical and mechanical specifications, ensuring functional interchangeability within the same circuit design.

Product Status:

Both parts maintain active production status with TE Connectivity AMP Connectors, confirming ongoing availability and support for either selection.

Packaging Consideration:

The main part is supplied in bulk packaging, while the substitute part is supplied in tray packaging. This distinction affects inventory management and handling procedures but does not impact electrical or mechanical performance.

Wire Gauge Specification:

The substitute part explicitly specifies 28-30 AWG wire gauge compatibility for IDC termination. The main part does not specify wire gauge in the provided parameters. When ribbon cable conductor size is a defined requirement in the application, the substitute part 1-1658526-9 provides explicit specification for this parameter.

Frequently Asked Questions (FAQ)

Q: Can the substitute part 1-1658526-9 be used in place of the main part 3-1437021-4?

A: Yes. Both parts are 34-position rectangular receptacle connectors with identical pitch, row spacing, mounting type, contact configuration, and gold plating specifications. All mechanical and electrical parameters required for connector mating and IDC ribbon cable termination are equivalent.

Q: What is the difference in RoHS compliance between these parts?

A: The main part 3-1437021-4 is RoHS non-compliant. The substitute part 1-1658526-9 is ROHS3 compliant. For applications requiring RoHS compliance, the substitute part must be selected.

Q: Does the wire gauge specification (28-30 AWG) on the substitute part restrict its use?

A: The wire gauge specification on the substitute part 1-1658526-9 defines the compatible ribbon cable conductor size for IDC termination. This specification clarifies the intended application range and does not prevent substitution. The connector will function with ribbon cable within this gauge range.

Q: Are there packaging differences between these parts?

A: Yes. The main part 3-1437021-4 is supplied in bulk packaging, while the substitute part 1-1658526-9 is supplied in tray packaging. This affects handling and inventory management but does not impact electrical or mechanical performance.

Q: What is the AMP-Latch series designation on the substitute part?

A: The AMP-Latch series designation on part 1-1658526-9 identifies the connector family within TE Connectivity's product line. This designation does not affect mechanical or electrical compatibility with the main part.

Q: Are both parts currently available?

A: Yes. Both parts maintain active production status. The main part 3-1437021-4 has 909 pieces in stock, and the substitute part 1-1658526-9 has 1833 pieces in stock.

Q: Can these connectors be used interchangeably in existing designs?

A: Yes. The identical pitch, position count, row spacing, mounting type, and contact specifications ensure mechanical and electrical interchangeability. Designs using either part will function identically in the same application.