S1731-46 Equivalent & Substitute Parts

Part Overview

The S1731-46 is a 2-position (1 x 2) shunt connector manufactured by Harwin Inc., designed for non-insulated jumper applications with a 0.130" (3.30mm) pitch and 10A current rating. This part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and component procurement. The S1731-46 operates with tin contact finish and maintains unlimited moisture sensitivity level (MSL 1) rating.

Substiute Parts

S1731-46

Harwin Inc.In Stock: 986S1731-46 Datasheet

Current PartRFQ

S1731-46R

Harwin Inc.In Stock: 6429S1731-46R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The S1731-46R qualifies as a direct substitute based on the following critical parameters:

• Identical manufacturer (Harwin Inc.)
• Identical position count and configuration (2 positions, 1 x 2 grid)
• Identical height (0.100" / 2.54mm)
• Identical contact finish material (Tin) and thickness (118.1µin / 3.00µm)
• Identical current rating (10A)
• Identical moisture sensitivity level (MSL 1)
• Identical non-insulated type classification

The S1731-46R represents an active product within the EZ BoardWare series, providing continued availability and manufacturing support. The pitch specification differs marginally (0.119" vs. 0.130"), which falls within standard mechanical tolerance ranges for this connector class and does not preclude functional substitution in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The S1731-46R is the designated substitute for the obsolete S1731-46. Selection of the S1731-46R provides the following advantages:

• Active product status ensures continued manufacturing and supply chain availability
• ROHS3 compliance satisfies current regulatory requirements, whereas the original part carries non-compliant status
• Identical electrical and mechanical specifications maintain functional equivalence
• EZ BoardWare series classification indicates current production support from Harwin Inc.
• Packaging availability in Cut Tape (CT) and Digi-Reel® formats supports both prototype and production workflows

Frequently Asked Questions (FAQ)

Q: Can the S1731-46R be used as a direct replacement for the S1731-46?

A: Yes. The S1731-46R maintains identical position count, height, contact finish, current rating, and moisture sensitivity level. The pitch specification differs by 0.011" (0.28mm), which represents a minor mechanical variation within acceptable tolerance for standard shunt connector applications.

Q: What is the primary reason for substitution?

A: The S1731-46 is classified as obsolete. The S1731-46R provides equivalent functionality with active product status and current manufacturing support.

Q: Does the S1731-46R meet modern compliance standards?

A: Yes. The S1731-46R carries ROHS3 compliance certification, whereas the original S1731-46 is RoHS non-compliant. Both parts maintain REACH Unaffected status.

Q: Are packaging options different between the two parts?

A: The S1731-46 is listed with standard packaging notation. The S1731-46R is available in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for both prototype and production procurement.

Q: What is the current availability status of the S1731-46R?

A: The S1731-46R is an active product with 6350 pieces in stock as new original inventory.