WH1S024WA1 Equivalent & Substitute Parts

Part Overview

The WH1S024WA1 is a 24-position rectangular connector receptacle manufactured by JAE Electronics, designed for surface mount applications with center strip contacts and gold plating. This connector is classified as obsolete, making equivalent substitute parts necessary for new designs, repairs, and ongoing production support. The WH1 series connectors are commonly used in industrial and telecommunications equipment requiring reliable high-density interconnections.

Substiute Parts

WH1S024WA1

JAE ElectronicsIn Stock: 11239WH1S024WA1 Datasheet

Current PartRFQ

DF37NB-24DS-0.4V(51)

Hirose Electric Co LtdIn Stock: 1633DF37NB-24DS-0.4V(51) Datasheet

SimilarRFQ

DF40C-24DS-0.4V(51)

Hirose Electric Co LtdIn Stock: 16114DF40C-24DS-0.4V(51) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WH1S024WA1 are qualified based on the following critical parameters that ensure functional and mechanical compatibility:

• Connector Type: Receptacle with center strip contacts
• Position Count: 24 positions
• Pitch: 0.016" (0.40mm)
• Row Configuration: 2 rows
• Mounting Method: Surface mount
• Contact Material: Gold plating
• Moisture Sensitivity: MSL 1 (Unlimited)

The two substitute parts listed—DF37NB-24DS-0.4V(51) and DF40C-24DS-0.4V(51)—both meet these core electrical and mechanical requirements. Differences in contact finish thickness, mated stacking heights, and height above board are secondary parameters that may influence PCB layout and mating interface design but do not prevent functional substitution.

Parameter Comparison

Engineering Selection Recommendations

DF37NB-24DS-0.4V(51) is the preferred substitute when space constraints and minimal height above board are critical design factors. This part maintains dimensional compatibility closest to the original WH1S024WA1 with a mated stacking height of 0.98mm and height above board of 0.038" (0.97mm). The DF37NB series includes solder retention features and carries active product status with RoHS3 compliance, ensuring long-term availability and regulatory alignment.

DF40C-24DS-0.4V(51) is suitable for applications where the increased mated stacking height of 1.5mm and height above board of 0.057" (1.45mm) are acceptable. This part offers the highest current inventory availability and carries RoHS compliance status, supporting production continuity for high-volume applications.

Both substitute parts are manufactured by Hirose Electric Co Ltd, an established connector supplier with consistent quality standards. Selection between the two should be based on PCB layout requirements and vertical clearance constraints specific to your application.

Frequently Asked Questions (FAQ)

Q: Can DF37NB-24DS-0.4V(51) and DF40C-24DS-0.4V(51) be used interchangeably with WH1S024WA1?

A: Both parts share identical electrical specifications (24 positions, 0.40mm pitch, 2 rows, surface mount, gold contacts, MSL 1). The primary differences are physical dimensions. DF37NB-24DS-0.4V(51) has a lower profile (0.98mm mated stacking height), while DF40C-24DS-0.4V(51) has a taller profile (1.5mm mated stacking height). Interchangeability depends on your PCB layout and vertical clearance requirements.

Q: What is the impact of contact finish thickness differences?

A: The WH1S024WA1 has 4.00µin (0.100µm) gold plating, while both Hirose substitutes have 2.00µin (0.051µm). Both thicknesses provide adequate corrosion resistance and electrical conductivity for standard applications. The thinner plating on Hirose parts is within industry standards and does not compromise connector performance or reliability.

Q: Are there packaging differences between these parts?

A: The WH1S024WA1 packaging is not specified in available data. Both Hirose substitutes are supplied in Cut Tape (CT) and Digi-Reel® packaging, which are standard for high-volume production environments.

Q: What compliance certifications apply to these substitutes?

A: Both DF37NB-24DS-0.4V(51) and DF40C-24DS-0.4V(51) are REACH Unaffected and classified as EAR99 for export control purposes. DF37NB-24DS-0.4V(51) carries RoHS3 compliance, while DF40C-24DS-0.4V(51) carries RoHS compliance. Both meet MSL 1 (Unlimited) moisture sensitivity requirements.

Q: Which substitute should I choose for new designs?

A: For new designs, either part is acceptable based on your mechanical constraints. DF37NB-24DS-0.4V(51) is recommended if board space is limited. DF40C-24DS-0.4V(51) is recommended if inventory availability is a priority. Verify mated interface compatibility with your corresponding plug connector before final selection.