SSW-125-03-S-D Equivalent & Substitute Parts

Part Overview

The SSW-125-03-S-D is a 50-position rectangular receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch spacing. This connector features through-hole solder termination, gold-plated mating contacts, and operates across -55°C to 125°C. The part is currently active in production with 962 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity.

Substiute Parts

SSW-125-03-S-D

Samtec Inc.In Stock: 1039SSW-125-03-S-D Datasheet

Current PartRFQ

SSW-125-03-SM-D

Samtec Inc.In Stock: 899SSW-125-03-SM-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSW-125-03-S-D is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Number of positions (50)
• Pitch spacing (0.100" / 2.54mm)
• Number of rows (2)
• Row spacing (0.100" / 2.54mm)
• Contact type (Forked)
• Mounting type (Through Hole)
• Termination method (Solder)
• Contact finish - mating (Gold)
• Contact finish thickness - mating (30.0µin / 0.76µm)
• Current rating (4.7A per Contact)
• Operating temperature range (-55°C ~ 125°C)
• Insulation material (Liquid Crystal Polymer)
• Material flammability rating (UL94 V-0)
• RoHS compliance (ROHS3)

The SSW-125-03-SM-D meets all these criteria and is classified as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both SSW-125-03-S-D and SSW-125-03-SM-D are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Both parts are ROHS3 compliant and carry UL94 V-0 flammability certification. Selection between these parts may be based on inventory availability, lead time, or procurement source requirements. The SSW-125-03-S-D currently has higher inventory availability at 962 units compared to 841 units for the SSW-125-03-SM-D.

Frequently Asked Questions (FAQ)

Q: Are SSW-125-03-S-D and SSW-125-03-SM-D fully interchangeable?

A: Yes. Both parts share identical electrical and mechanical parameters, including connector type, position count, pitch spacing, contact configuration, termination method, current rating, and operating temperature range. They are direct equivalents within the SSW series.

Q: What determines substitution eligibility for this connector?

A: Substitution is based on matching all critical parameters: 50-position receptacle configuration, 0.100" pitch spacing, 2-row layout, forked contact type, through-hole solder termination, gold mating contact finish at 30.0µin thickness, 4.7A per contact current rating, -55°C to 125°C operating range, LCP insulation material, UL94 V-0 flammability rating, and ROHS3 compliance.

Q: Can I use these connectors in high-temperature applications?

A: Both parts are rated for -55°C to 125°C operating temperature. Applications requiring operation beyond this range require alternative connector selection.

Q: Are there any packaging differences between these parts?

A: Both parts are supplied in bulk packaging. No packaging format differences exist between SSW-125-03-S-D and SSW-125-03-SM-D.

Q: What is the current-carrying capacity per contact?

A: Both parts are rated at 4.7A per contact, supporting applications requiring this current level across all 50 positions.