TE Connectivity 747303-2 D-Sub Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity 747303-2 is a 25-position D-Sub receptacle connector with female sockets, designed for IDC ribbon cable termination. This connector is part of the AMPLIMITE HDF-20 series and features a free-hanging, in-line mounting configuration with a DB/B shell size layout.

The 747303-2 carries an obsolete product status. Locating equivalent and substitute components is necessary to support legacy system maintenance, repair, and continued field deployment where this connector type remains in use.

Substiute Parts

747303-2

TE Connectivity AMP ConnectorsIn Stock: 1226747303-2 Datasheet

Current PartRFQ

1658612-2

TE Connectivity AMP ConnectorsIn Stock: 13771658612-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 747303-2 is determined by strict equivalence across the following critical parameters:

Connector Architecture: Connector style (D-Sub), connector type (receptacle with female sockets), position count (25), row configuration (2), and shell size layout (3/DB/B) must be identical.

Termination Compatibility: The termination method must support IDC ribbon cable connection to ensure mechanical and electrical compatibility with existing cable assemblies.

Mounting Configuration: Free-hanging, in-line mounting type must be maintained for proper installation in legacy systems.

Electrical and Material Specifications: Contact material (phosphor bronze), contact finish (gold at 30.0µin thickness), shell material (steel, tin plated), current rating (1.25A), and operating temperature range (-55°C to 105°C) establish the functional performance envelope.

Certification and Compliance: Material flammability rating (UL94 V-0) and series designation (AMPLIMITE HDF-20) confirm regulatory and design compatibility.

The substitute part 1658612-2 meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 1658612-2 is a direct functional equivalent to the 747303-2 across all critical electrical, mechanical, and material parameters. Both connectors share identical specifications for connector architecture, termination method, shell construction, contact materials, and operating performance.

The primary distinction between these parts is product status and regulatory compliance. The 747303-2 is obsolete, while the 1658612-2 carries active product status. Additionally, the 1658612-2 is RoHS compliant, whereas the 747303-2 is RoHS non-compliant. For new designs or systems requiring regulatory compliance with current environmental standards, the 1658612-2 is the appropriate selection.

For legacy system support where the 747303-2 is currently deployed, the 1658612-2 provides a direct replacement with identical form, fit, and function. The active product status of the 1658612-2 ensures continued availability and supply chain support.

Frequently Asked Questions (FAQ)

Q: Can the 1658612-2 be used as a direct replacement for the 747303-2 in existing assemblies?

A: Yes. The 1658612-2 is a direct functional equivalent. All electrical, mechanical, and material specifications are identical, including connector type, position count, shell size, termination method, contact materials, and operating temperature range. The connector will integrate seamlessly into existing ribbon cable assemblies and mounting configurations.

Q: What is the difference between the 747303-2 and 1658612-2?

A: The connectors are functionally identical. The 747303-2 is obsolete with RoHS non-compliant status. The 1658612-2 is an active product with RoHS compliant certification. Both are part of the AMPLIMITE HDF-20 series and share identical specifications for all critical parameters.

Q: Why is the 747303-2 listed as obsolete?

A: The 747303-2 has reached end-of-life status in the manufacturer's product portfolio. The 1658612-2 represents the current active equivalent within the AMPLIMITE HDF-20 series.

Q: Are there packaging differences between these parts?

A: The 747303-2 packaging specification is not provided in the available data. The 1658612-2 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both connectors deliver identical electrical specifications, including current rating (1.25A), contact finish (gold), and operating temperature range (-55°C to 105°C).

Q: Can I use the 1658612-2 in applications where the 747303-2 was originally specified?

A: Yes. The 1658612-2 meets all functional requirements of the 747303-2. It is suitable for all applications where the original connector was used, with the added benefit of active product status and RoHS compliance.

Q: What wire gauge is compatible with the 1658612-2?

A: The 1658612-2 supports 26-28 AWG wire, stranded or solid. This specification is provided for the substitute part and ensures compatibility with standard ribbon cable assemblies.