SSW-127-21-G-S Equivalent & Substitute Parts

Part Overview

The SSW-127-21-G-S is a 27-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 forked contacts, solder termination, and push-pull fastening, operating across -55°C to 125°C. The part is Active status and ROHS3 compliant, making it suitable for industrial and commercial applications requiring reliable interconnection with high current capacity per contact.

Alternative models become necessary when inventory constraints occur, when specific packaging requirements change, or when design revisions require connector variants within the same series that maintain electrical and mechanical compatibility.

Substiute Parts

SSW-127-21-G-S

Samtec Inc.In Stock: 699SSW-127-21-G-S Datasheet

Current PartRFQ

SSW-127-01-G-S

Samtec Inc.In Stock: 1008SSW-127-01-G-S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SSW-127-21-G-S is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Both main and substitute parts must be 27-position receptacles
• Pitch & Mounting: 0.100" (2.54mm) pitch with through-hole solder termination
• Contact Configuration: Forked contact type with gold mating finish
• Electrical Performance: 4.7A per contact current rating
• Environmental Compliance: UL94 V-0 flammability rating, ROHS3 compliance, operating range -55°C to 125°C
• Material & Construction: Liquid Crystal Polymer insulation, phosphor bronze contacts with specified gold plating thickness

The SSW-127-01-G-S qualifies as a direct substitute because it maintains identical specifications across all critical parameters. Both parts belong to the SSW series base product family (SSW-127) and share the same connector architecture, ensuring mechanical and electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both SSW-127-21-G-S and SSW-127-01-G-S are Active status products with full ROHS3 compliance and identical electrical, mechanical, and environmental specifications. Selection between these parts should be based on inventory availability and packaging requirements, as both connectors are functionally equivalent for all applications requiring 27-position, 0.100" pitch receptacle connectors with gold-plated forked contacts and solder termination.

The SSW-127-01-G-S currently maintains higher inventory availability (960 Pcs) compared to SSW-127-21-G-S (673 Pcs), making it a viable alternative when supply constraints are a consideration.

Frequently Asked Questions (FAQ)

Q: Are SSW-127-21-G-S and SSW-127-01-G-S mechanically interchangeable?

A: Yes. Both connectors share identical mechanical dimensions, including insulation height (0.335"), contact length (0.104"), and pitch spacing (0.100"). They mount identically in through-hole applications with solder termination.

Q: Do these connectors have the same electrical performance?

A: Yes. Both parts carry 4.7A per contact and operate across -55°C to 125°C. Contact material, finish type, and finish thickness are identical, ensuring equivalent electrical performance in all applications.

Q: What is the difference between SSW-127-21-G-S and SSW-127-01-G-S?

A: The parts are functionally equivalent. The difference in part number suffix (-21 vs -01) reflects internal Samtec product line designation but does not indicate functional or performance differences. All critical specifications are identical.

Q: Can I substitute SSW-127-01-G-S for SSW-127-21-G-S in existing designs?

A: Yes. No design changes are required. The connectors are direct substitutes with identical pinout, mechanical footprint, and electrical characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both SSW-127-21-G-S and SSW-127-01-G-S are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What insulation material is used in these connectors?

A: Both connectors use Liquid Crystal Polymer (LCP) insulation with UL94 V-0 flammability rating, providing excellent thermal and chemical resistance.