SSW-125-02-F-D-RA Equivalent & Substitute Parts

Part Overview

The SSW-125-02-F-D-RA is a 50-position rectangular receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications. This connector features 0.100" (2.54mm) pitch through-hole mounting with right-angle orientation and gold-plated mating contacts. The product is currently active and maintains 777 units in stock. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain compatibility across production batches.

Substiute Parts

SSW-125-02-F-D-RA

Samtec Inc.In Stock: 809SSW-125-02-F-D-RA Datasheet

Current PartRFQ

SSW-125-02-S-D-RA

Samtec Inc.In Stock: 1009SSW-125-02-S-D-RA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSW-125-02-F-D-RA is determined by strict alignment of the following critical parameters:

• Connector Type & Style: Receptacle, board-to-board or cable configuration
• Position Count & Pitch: 50 positions at 0.100" (2.54mm) mating pitch
• Row Configuration: 2 rows with 0.100" (2.54mm) row spacing
• Mounting & Orientation: Through-hole, right-angle mounting
• Contact System: Forked contact type with square contact shape
• Electrical Performance: 4.7A per contact current rating
• Environmental Compliance: UL94 V-0 flammability rating, ROHS3 compliance, -55°C to 125°C operating range
• Contact Materials & Finish: Phosphor bronze contacts with gold mating finish and tin post finish

The SSW-125-02-S-D-RA qualifies as a direct substitute based on identical alignment across all critical parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

Both SSW-125-02-F-D-RA and SSW-125-02-S-D-RA are active products with ROHS3 compliance and UL94 V-0 flammability certification. The primary distinction between these parts is the mating contact finish thickness: the SSW-125-02-F-D-RA specifies 3.00µin (0.076µm), while the SSW-125-02-S-D-RA specifies 30.0µin (0.76µm). This tenfold difference in gold plating thickness on mating contacts may influence durability in high-cycle mating applications or corrosive environments. Both parts maintain identical electrical performance, mechanical dimensions, and environmental operating ranges. Selection between these parts should be based on application-specific requirements regarding contact durability and mating cycle expectations, as well as current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can SSW-125-02-S-D-RA be used as a direct replacement for SSW-125-02-F-D-RA?

A: Yes. Both connectors share identical position count, pitch, row configuration, mounting type, contact system, current rating, and environmental compliance specifications. The mating contact finish thickness differs, with SSW-125-02-S-D-RA providing 10 times greater gold plating thickness.

Q: What is the significance of the contact finish thickness difference?

A: Contact finish thickness affects wear resistance during mating cycles and corrosion protection in harsh environments. The SSW-125-02-S-D-RA's thicker gold plating (30.0µin) provides enhanced durability compared to the SSW-125-02-F-D-RA (3.00µin) for applications requiring frequent disconnection or exposure to corrosive conditions.

Q: Are both parts RoHS compliant?

A: Yes. Both SSW-125-02-F-D-RA and SSW-125-02-S-D-RA are ROHS3 compliant and carry UL94 V-0 flammability certification.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across -55°C to 125°C, suitable for industrial and commercial applications.

Q: Are there any packaging or inventory differences?

A: Both parts are supplied in bulk packaging. SSW-125-02-S-D-RA currently has higher inventory availability (985 pcs) compared to SSW-125-02-F-D-RA (777 pcs).

Q: What is the current rating per contact?

A: Both connectors are rated for 4.7A per contact, supporting identical electrical load capacity.