SSW-129-21-S-S Equivalent & Substitute Parts

Part Overview

The SSW-129-21-S-S is a 29-position receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch through-hole mounting. This connector features gold-plated mating contacts, tin-plated posts, and is rated for 4.7A per contact with an operating temperature range of -55°C to 125°C. The part is currently active in production and ROHS3 compliant. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and component availability across manufacturing cycles.

Substiute Parts

SSW-129-21-S-S

Samtec Inc.In Stock: 981SSW-129-21-S-S Datasheet

Current PartRFQ

SSW-129-01-S-S

Samtec Inc.In Stock: 948SSW-129-01-S-S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSW-129-21-S-S is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Number of positions (29)
• Pitch specification (0.100" / 2.54mm)
• Mounting method (Through Hole)
• Contact configuration (Forked contacts)
• Mating contact finish (Gold plating at 30.0µin / 0.76µm)
• Post contact finish (Tin)
• Current rating (4.7A per contact minimum)
• Operating temperature range (-55°C to 125°C)
• Flammability compliance (UL94 V-0)
• RoHS compliance status (ROHS3)

Parts meeting all these criteria are classified as direct electrical and mechanical equivalents suitable for interchangeable use in the same application circuit.

Parameter Comparison

Engineering Selection Recommendations

The SSW-129-01-S-S is a direct equivalent substitute for the SSW-129-21-S-S. Both parts are manufactured by Samtec Inc. within the same SSW series and maintain identical electrical and mechanical specifications across all critical parameters. Both parts carry active product status and full ROHS3 compliance certification. Selection between these parts may be based on inventory availability: SSW-129-21-S-S has 947 pieces in stock, while SSW-129-01-S-S has 893 pieces available. No functional or compliance trade-offs exist between these alternatives.

Frequently Asked Questions (FAQ)

Q: Can SSW-129-01-S-S be used as a direct replacement for SSW-129-21-S-S?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical connector type, position count, pitch, mounting method, contact configuration, plating specifications, current rating, temperature range, and compliance certifications.

Q: Are there any differences in contact plating between these parts?

A: No. Both parts feature gold-plated mating contacts at 30.0µin (0.76µm) thickness and tin-plated posts. Contact material, shape, and finish specifications are identical.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both SSW-129-21-S-S and SSW-129-01-S-S are ROHS3 compliant, carry UL94 V-0 flammability rating, and share the same ECCN (EAR99) and HTSUS code classifications.

Q: What is the difference between these part numbers if they are equivalent?

A: The difference lies in the suffix designation within the part number scheme. Both parts belong to the same base product number (SSW-129) and series, but the suffix variation (21 versus 01) may reflect internal manufacturing or packaging lot differentiation. Electrical and mechanical performance remains identical.

Q: Can these connectors handle the same current and temperature specifications?

A: Yes. Both parts are rated for 4.7A per contact and operate across the identical temperature range of -55°C to 125°C.