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SSW-104-21-L-S Equivalent & Substitute Parts
Part Overview
The SSW-104-21-L-S is a 4-position receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch spacing. This through-hole connector features gold-plated mating contacts and tin-plated posts, rated for 4.7A per contact with an operating temperature range of -55°C to 125°C. The connector is currently active in production and ROHS3 compliant. Substitute parts are identified when electrical and mechanical parameters remain functionally equivalent, enabling component interchangeability in applications where the primary part becomes unavailable or inventory constraints require alternative sourcing.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Receptacle |
| Number of Positions | 4 |
| Pitch - Mating | 0.100" (2.54mm) |
| Mounting Type | Through Hole |
| Contact Type | Forked |
| Termination | Solder |
| Contact Finish - Mating | Gold |
| Current Rating | 4.7A per Contact |
| Operating Temperature | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
The SSW-104-01-L-S qualifies as a direct substitute for the SSW-104-21-L-S based on the following critical parameters:
- Connector Type & Configuration: Both are 4-position receptacle connectors with identical pitch spacing (0.100" / 2.54mm)
- Electrical Characteristics: Matching current rating (4.7A per contact) and operating temperature range (-55°C ~ 125°C)
- Contact & Termination: Identical forked contact type, gold mating finish, tin post finish, and solder termination
- Mechanical Specifications: Same through-hole mounting, insulation height (0.335" / 8.51mm), and contact length (0.104" / 2.64mm)
- Compliance & Standards: Both meet UL94 V-0 flammability rating and ROHS3 compliance requirements
- Series & Base Product: Both belong to the SSW series with identical base product number (SSW-104)
Substitution is valid where these parameters determine functional compatibility in the application circuit.
Parameter Comparison
| Parameter | SSW-104-21-L-S | SSW-104-01-L-S |
|---|---|---|
| Manufacturer | Samtec Inc. | Samtec Inc. |
| Series | SSW | SSW |
| Product Status | Active | Active |
| Connector Type | Receptacle | Receptacle |
| Number of Positions | 4 | 4 |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Contact Type | Forked | Forked |
| Mounting Type | Through Hole | Through Hole |
| Termination | Solder | Solder |
| Contact Finish - Mating | Gold | Gold |
| Contact Finish Thickness - Mating | 10.0µin (0.25µm) | 10.0µin (0.25µm) |
| Insulation Color | Black | Black |
| Insulation Height | 0.335" (8.51mm) | 0.335" (8.51mm) |
| Contact Length - Post | 0.104" (2.64mm) | 0.104" (2.64mm) |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Contact Finish - Post | Tin | Tin |
| Current Rating (Amps) | 4.7A per Contact | 4.7A per Contact |
| Insulation Material | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) |
| Contact Shape | Square | Square |
| Contact Material | Phosphor Bronze | Phosphor Bronze |
| Base Product Number | SSW-104 | SSW-104 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8536.69.4040 | 8536.69.4040 |
Engineering Selection Recommendations
Both the SSW-104-21-L-S and SSW-104-01-L-S are active production components from Samtec Inc. with identical ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on inventory availability and lead time requirements, as all electrical and mechanical parameters are equivalent. Both connectors meet the same regulatory and compliance standards, ensuring functional interchangeability in applications requiring 4-position, 0.100" pitch receptacle connectors with gold-plated mating contacts and solder termination.
Frequently Asked Questions (FAQ)
Q: Can SSW-104-01-L-S be used as a direct replacement for SSW-104-21-L-S?
A: Yes. Both connectors share identical electrical ratings (4.7A per contact), mechanical dimensions (0.100" pitch, 0.335" insulation height), contact configuration (forked, gold-plated), and compliance certifications (UL94 V-0, ROHS3). They are functionally equivalent for board-to-board and cable applications.
Q: Are there any differences in operating conditions between these parts?
A: No. Both connectors operate across the same temperature range (-55°C to 125°C) and are rated for identical current per contact (4.7A). Compliance with UL94 V-0 flammability standards is equivalent.
Q: What determines substitution eligibility for SSW series receptacle connectors?
A: Substitution is valid when the following parameters match: connector type (receptacle), number of positions (4), mating pitch (0.100"), contact type (forked), mounting method (through-hole), termination type (solder), contact finish (gold mating / tin post), and current rating (4.7A per contact).
Q: Are packaging and inventory considerations relevant to substitution?
A: Packaging format (bulk) is identical for both parts. Inventory levels may differ, but this does not affect electrical or mechanical compatibility. Selection should prioritize availability and procurement lead times.
Q: Do both connectors meet the same regulatory requirements?
A: Yes. Both SSW-104-21-L-S and SSW-104-01-L-S are ROHS3 compliant, carry EAR99 ECCN classification, and meet UL94 V-0 material flammability standards. They are suitable for equivalent regulatory environments.
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