SSW-128-21-F-D Equivalent & Substitute Parts

Part Overview

The SSW-128-21-F-D is a 56-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 with 997 units in stock and maintains ROHS3 compliance.

Equivalent and substitute parts are identified based on matching electrical and mechanical specifications that ensure functional interchangeability in the same application context.

Substiute Parts

SSW-128-21-F-D

Samtec Inc.In Stock: 1095SSW-128-21-F-D Datasheet

Current PartRFQ

SSW-128-01-F-D

Samtec Inc.In Stock: 1029SSW-128-01-F-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSW-128-21-F-D is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Position count (56 positions)
• Mating pitch (0.100" / 2.54mm)
• Row configuration (2 rows with 0.100" spacing)
• Mounting method (Through Hole)
• Termination type (Solder)
• Contact finish specifications (Gold mating, Tin post)
• Current rating (4.7A per contact)
• Operating temperature range (-55°C ~ 125°C)
• Flammability and compliance certifications (UL94 V-0, ROHS3)

The SSW-128-21-F-D shares the same base product number (SSW-128) with its substitute, confirming design family compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the SSW-128-21-F-D and SSW-128-01-F-D are active production parts manufactured by Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on inventory availability and procurement lead times.

The SSW-128-21-F-D currently maintains higher stock levels (997 units) compared to the SSW-128-01-F-D (989 units). Both parts carry ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Are SSW-128-21-F-D and SSW-128-01-F-D fully interchangeable?

A: Yes. Both parts share identical electrical and mechanical specifications, including connector type, position count, pitch, mounting method, contact finishes, current rating, and operating temperature range. They are functionally equivalent for board-to-board and cable applications.

Q: What determines substitution eligibility for this connector family?

A: Substitution is based on matching the following parameters: 56-position receptacle configuration, 0.100" (2.54mm) mating pitch, 2-row layout with 0.100" row spacing, through-hole solder termination, gold mating contacts with tin-plated posts, 4.7A per contact current rating, and -55°C to 125°C operating temperature range.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SSW-128-21-F-D and SSW-128-01-F-D are ROHS3 compliant and carry UL94 V-0 flammability certification. They share the same ECCN (EAR99) and HTSUS classification.

Q: What is the difference between these two part numbers?

A: The parts are functionally identical. The difference in part numbers reflects internal Samtec product line designation but does not affect electrical or mechanical performance in the application.

Q: Can I mix these connectors in the same assembly?

A: Yes. Since both parts are electrically and mechanically equivalent, they can be used interchangeably within the same assembly or system design.