SSQ-103-21-S-S Equivalent & Substitute Parts

Part Overview

The SSQ-103-21-S-S is a 3-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 -55°C to 125°C operation with UL94 V-0 flammability compliance. The part is currently active in production with 665 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

SSQ-103-21-S-S

Samtec Inc.In Stock: 708SSQ-103-21-S-S Datasheet

Current PartRFQ

SSQ-103-01-S-S

Samtec Inc.In Stock: 1055SSQ-103-01-S-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSQ-103-21-S-S is determined by strict equivalence across the following critical parameters: connector type (receptacle), number of positions (3), mating pitch (0.100"), mounting method (through hole), contact configuration (forked), contact finish specifications (gold mating, tin post), voltage rating (465VAC / 655VDC), operating temperature range (-55°C to 125°C), flammability rating (UL94 V-0), and insulation material (LCP). The substitute part SSQ-103-01-S-S meets all these criteria and belongs to the same SSQ series from Samtec Inc. Both parts share the base product number SSQ-103, confirming mechanical and electrical compatibility. Substitution is valid only when all specified parameters match exactly.

Parameter Comparison

Engineering Selection Recommendations

Both SSQ-103-21-S-S and SSQ-103-01-S-S are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts is based on inventory availability and procurement lead time. The SSQ-103-21-S-S currently has 665 units in stock, while the SSQ-103-01-S-S has 999 units available. Both parts carry ROHS3 compliance and EAR99 export classification. For applications requiring immediate availability, the SSQ-103-01-S-S offers higher stock levels. Both connectors are suitable for the same circuit applications without design modification.

Frequently Asked Questions (FAQ)

Q: Are SSQ-103-21-S-S and SSQ-103-01-S-S fully interchangeable? A: Yes. Both parts are electrically and mechanically equivalent. They share identical contact configurations, pitch, voltage ratings, temperature ranges, and physical dimensions. Direct substitution is valid without circuit redesign.

Q: What determines if a part can substitute for the SSQ-103-21-S-S? A: Substitute parts must match all critical parameters: 3-position receptacle configuration, 0.100" mating pitch, through-hole mounting, forked contact type, gold mating finish (30.0µin), tin post finish, 465VAC/655VDC voltage rating, -55°C to 125°C operating range, UL94 V-0 flammability rating, and LCP insulation material.

Q: Can I use a different pitch connector as a substitute? A: No. The 0.100" (2.54mm) mating pitch is a critical parameter. Connectors with different pitch values are not compatible and cannot be substituted.

Q: Are there any compliance differences between these parts? A: No. Both parts are ROHS3 compliant, carry EAR99 export classification, and share identical HTSUS codes. Compliance status is equivalent.

Q: What is the difference between the two part numbers? A: The part numbers differ only in their suffix designation (21 versus 01). All electrical, mechanical, and compliance specifications are identical. The difference reflects internal Samtec product line organization.

Q: Can these connectors be used in high-temperature applications? A: Yes. Both parts are rated for continuous operation from -55°C to 125°C, supporting industrial and automotive temperature ranges.