HR31-SC-111 Equivalent & Substitute Parts Reference

Part Overview

The HR31-SC-111 is a socket contact connector manufactured by Hirose Electric Co Ltd, designed for 14-16 AWG wire gauges with crimp termination and gold plating. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain supply chain continuity and ensure long-term availability for new designs and production runs.

Substiute Parts

HR31-SC-111

Hirose Electric Co LtdIn Stock: 852HR31-SC-111 Datasheet

Current PartRFQ

HR31-SC-111(71)

Hirose Electric Co., Ltd.In Stock: 1097HR31-SC-111(71) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HR31-SC-111 is determined by strict equivalence across the following electrical and mechanical parameters:

• Series designation (HR31)
• Contact type (Socket)
• Contact termination method (Crimp)
• Wire gauge compatibility (14-16 AWG)
• Contact finish material (Gold)
• Connector category (Rectangular Connectors)

The HR31-SC-111(71) qualifies as a direct substitute because it maintains identical specifications across all critical parameters while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The HR31-SC-111(71) is the direct equivalent for the obsolete HR31-SC-111. Selection of the HR31-SC-111(71) is supported by:

• Identical electrical and mechanical specifications across all functional parameters
• Active product status ensuring ongoing availability and supply chain reliability
• RoHS compliance, meeting current environmental and regulatory requirements
• Higher inventory availability (1033 Pcs vs 745 Pcs)
• Bulk packaging option for production environments

For applications where RoHS non-compliance is a requirement, the original HR31-SC-111 remains available in current inventory. However, for new designs and long-term production, the HR31-SC-111(71) is the recommended selection.

Frequently Asked Questions (FAQ)

Q: Are HR31-SC-111 and HR31-SC-111(71) mechanically interchangeable?

A: Yes. Both components are socket contacts within the HR31 series with identical wire gauge (14-16 AWG), crimp termination, and gold contact finish. They are mechanically and electrically interchangeable.

Q: What is the difference between HR31-SC-111 and HR31-SC-111(71)?

A: The primary differences are product status (Obsolete vs Active), RoHS compliance status (non-compliant vs Compliant), and packaging designation (standard vs Bulk). Functional specifications are identical.

Q: Why is HR31-SC-111 marked as obsolete?

A: Obsolescence indicates the manufacturer has discontinued active production. The HR31-SC-111(71) represents the current active equivalent within the same series.

Q: Can I use HR31-SC-111(71) in place of HR31-SC-111 in existing designs?

A: Yes, provided your application does not specifically require RoHS non-compliance. The HR31-SC-111(71) maintains full functional equivalence and is recommended for all new applications.

Q: What does the "(71)" designation indicate?

A: The "(71)" suffix indicates a packaging or variant designation within the HR31-SC-111 product line. It does not affect electrical or mechanical performance.

Q: Are there any other substitutes for HR31-SC-111 outside the HR31 series?

A: No alternative substitutes are provided in the reference data. Substitution outside the HR31 series would require different wire gauge, termination method, or contact finish specifications.