SSW-125-01-F-D-N Equivalent & Substitute Parts

Part Overview

The SSW-125-01-F-D-N is a 50-position rectangular receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch spacing. This connector features through-hole solder termination, gold-plated mating contacts, and forked contact geometry. The part maintains Active product status with 1061 units in current inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the SSW-125 series, allowing for component interchangeability in applications where specific connector variants may have limited availability or inventory constraints.

Key Parameters

Parameter	Value
Manufacturer Part Number	SSW-125-01-F-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
Fastening Type	Push-Pull
Contact Type	Forked
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Current Rating	4.7A per Contact
Operating Temperature	-55°C ~ 125°C
Insulation Material	Liquid Crystal Polymer (LCP)
Insulation Color	Black
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts within the SSW-125 series are determined by equivalence across the following critical parameters:

Connector Type & Position Count: All substitutes maintain 50-position receptacle configuration
Pitch & Row Spacing: All maintain 0.100" (2.54mm) mating pitch and row spacing
Mounting & Termination: All use through-hole solder termination
Contact Specifications: All feature forked contacts with gold mating finish and tin post finish
Electrical Performance: All rated at 4.7A per contact with -55°C ~ 125°C operating range
Material & Compliance: All use LCP insulation with UL94 V-0 rating and ROHS3 compliance

Variations between the main part and substitutes occur in the connector designation codes (position 4-5 and 6-7 of the part number), which indicate different mechanical locking or contact loading configurations within the same electrical and physical envelope.

Parameter Comparison

Parameter	SSW-125-01-F-D-N	SSW-125-01-F-D	SSW-125-21-F-D	SSW-125-01-FM-D	SSW-125-21-FM-D
Number of Positions	50	50	50	50	50
Pitch - Mating	0.100"	0.100"	0.100"	0.100"	0.100"
Number of Rows	2	2	2	2	2
Row Spacing - Mating	0.100"	0.100"	0.100"	0.100"	0.100"
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Type	Forked	Forked	Forked	Forked	Forked
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin
Current Rating	4.7A	4.7A	4.7A	4.7A	4.7A
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Insulation Material	LCP	LCP	LCP	LCP	LCP
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active
Inventory (Pcs)	1061	8857	907	804	1146

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring continued manufacturer support and regulatory alignment. Selection between SSW-125-01-F-D-N and its substitutes should be based on inventory availability and specific connector designation requirements as defined in the application design.

SSW-125-01-F-D offers the highest current inventory level at 8857 units, providing supply chain flexibility. All parts share identical electrical performance specifications, material certifications, and operating parameters, supporting direct substitution within the SSW-125 series framework.

Frequently Asked Questions (FAQ)

Q: Can SSW-125-01-F-D-N be directly replaced with SSW-125-01-F-D?

A: Yes. Both parts maintain identical electrical and mechanical specifications including 50-position configuration, 0.100" pitch, through-hole solder termination, 4.7A current rating, and -55°C ~ 125°C operating range. The difference in part number designation reflects connector variant coding but does not affect functional compatibility.

Q: What distinguishes the "-01-" and "-21-" designations in the part number?

A: These designations indicate different mechanical locking or contact loading configurations within the SSW-125 series. All variants maintain equivalent electrical performance and physical envelope specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, meeting regulatory requirements for hazardous substance restrictions.

Q: What is the difference between "-F-D" and "-FM-D" variants?

A: The "-FM-" designation indicates a variant within the connector series. All variants listed maintain identical electrical specifications, current ratings, operating temperature range, and material certifications.

Q: Can these connectors be used interchangeably in board-to-board applications?

A: Yes. All substitute parts are rated for board-to-board or cable applications with identical pitch spacing (0.100"), row configuration (2 rows), and through-hole mounting specifications.

Q: What is the moisture sensitivity level for these connectors?

A: SSW-125-01-F-D-N and SSW-125-01-FM-D are listed as Not Applicable for MSL. SSW-125-01-F-D and SSW-125-21-F-D carry MSL 1 (Unlimited), and SSW-125-21-FM-D is listed as Not Applicable.

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