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SSW-125-01-G-D-N Equivalent & Substitute Parts
Part Overview
The SSW-125-01-G-D-N is a 50-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 forked contacts, solder termination, and push-pull fastening. The part is currently active in production with 893 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across compatible applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SSW-125-01-G-D-N |
| Manufacturer | Samtec Inc. |
| Category | Rectangular Connectors |
| Series | SSW |
| Connector Type | Receptacle |
| Number of Positions | 50 |
| Pitch - Mating | 0.100" (2.54mm) |
| Number of Rows | 2 |
| Row Spacing - Mating | 0.100" (2.54mm) |
| Mounting Type | Through Hole |
| Termination | Solder |
| Contact Type | Forked |
| Current Rating | 4.7A per Contact |
| Operating Temperature | -55°C ~ 125°C |
| Contact Finish - Mating | Gold |
| Contact Finish Thickness - Mating | 20.0µin (0.51µm) |
| Insulation Material | Liquid Crystal Polymer (LCP) |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the SSW-125-01-G-D-N are determined by equivalence across the following critical parameters:
- Connector Type & Configuration: Receptacle, 50-position, 2-row layout
- Pitch Specifications: 0.100" (2.54mm) mating pitch and row spacing
- Electrical Performance: 4.7A per contact current rating
- Mechanical Interface: Through-hole solder termination with push-pull fastening
- Contact Properties: Forked contact type with gold plating (20.0µin mating finish)
- Environmental Compliance: UL94 V-0 flammability rating, ROHS3 compliance, operating range -55°C ~ 125°C
- Material Composition: Liquid Crystal Polymer insulation, Phosphor Bronze contacts
The identified substitutes maintain identical electrical and mechanical specifications across all critical parameters, ensuring direct interchangeability in circuit designs and PCB layouts.
Parameter Comparison
| Parameter | SSW-125-01-G-D-N | SSW-125-01-G-D | SSW-125-21-G-D |
|---|---|---|---|
| Manufacturer | Samtec Inc. | Samtec Inc. | Samtec Inc. |
| Series | SSW | SSW | SSW |
| Number of Positions | 50 | 50 | 50 |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Number of Rows | 2 | 2 | 2 |
| Row Spacing - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Connector Type | Receptacle | Receptacle | Receptacle |
| Contact Type | Forked | Forked | Forked |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Termination | Solder | Solder | Solder |
| Fastening Type | Push-Pull | Push-Pull | Push-Pull |
| Current Rating (Amps) | 4.7A per Contact | 4.7A per Contact | 4.7A per Contact |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Contact Finish - Mating | Gold | Gold | Gold |
| Contact Finish Thickness - Mating | 20.0µin (0.51µm) | 20.0µin (0.51µm) | 20.0µin (0.51µm) |
| Insulation Material | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active |
| Inventory (Pcs) | 893 | 1140 | 953 |
Engineering Selection Recommendations
All three parts—SSW-125-01-G-D-N, SSW-125-01-G-D, and SSW-125-21-G-D—are active production components from Samtec Inc. with identical electrical, mechanical, and environmental specifications. Selection among these substitutes should be based on:
Product Status: All parts maintain active status, ensuring continued availability and manufacturing support.
Compliance Certifications: All parts are ROHS3 compliant and carry UL94 V-0 flammability ratings, meeting regulatory requirements for industrial and commercial applications.
Inventory Availability: SSW-125-01-G-D offers the highest current stock level at 1140 units, followed by SSW-125-21-G-D at 953 units and SSW-125-01-G-D-N at 893 units. Procurement decisions may prioritize availability based on project timelines.
Moisture Sensitivity: SSW-125-01-G-D-N and SSW-125-01-G-D are not subject to moisture sensitivity level requirements. SSW-125-21-G-D carries MSL 1 (Unlimited), indicating no moisture sensitivity constraints.
All three parts are electrically and mechanically interchangeable for applications requiring 50-position, 0.100" pitch receptacle connectors with gold-plated forked contacts and through-hole solder termination.
Frequently Asked Questions (FAQ)
Q: Are SSW-125-01-G-D-N, SSW-125-01-G-D, and SSW-125-21-G-D directly interchangeable?
A: Yes. All three parts share identical specifications for connector type, position count, pitch, row spacing, contact type, termination method, current rating, operating temperature range, contact finish, insulation material, and flammability rating. They are direct substitutes for board-to-board and cable applications.
Q: What determines substitutability for SSW series 50-position receptacle connectors?
A: Substitutability is determined by equivalence in number of positions (50), mating pitch (0.100"), row spacing (0.100"), connector type (receptacle), contact type (forked), mounting method (through-hole), termination (solder), fastening type (push-pull), current rating (4.7A per contact), operating temperature range (-55°C ~ 125°C), contact finish (gold, 20.0µin), insulation material (LCP), and flammability rating (UL94 V-0).
Q: Does moisture sensitivity affect part selection?
A: Moisture sensitivity levels differ between parts. SSW-125-01-G-D-N and SSW-125-01-G-D are not subject to MSL requirements. SSW-125-21-G-D carries MSL 1 (Unlimited), indicating no moisture sensitivity constraints. For applications with strict moisture control requirements, all three parts are suitable.
Q: Can these connectors be used in high-temperature applications?
A: Yes. All three parts are rated for operating temperatures from -55°C to 125°C, supporting industrial and commercial applications within this thermal range.
Q: What is the current-carrying capacity per contact?
A: Each contact in all three parts is rated for 4.7A, supporting moderate to high-current signal and power distribution applications.
Q: Are all parts RoHS compliant?
A: Yes. SSW-125-01-G-D-N, SSW-125-01-G-D, and SSW-125-21-G-D are all ROHS3 compliant, meeting environmental and regulatory standards for electronic component manufacturing.
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