SSW-104-21-F-D Equivalent & Substitute Parts

Part Overview

The SSW-104-21-F-D is an 8-position 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 is currently active in production with 1128 units in stock.

Equivalent and substitute parts are identified based on matching electrical and mechanical specifications within the SSW series rectangular connector family. Substitutes maintain identical connector type, position count, pitch, mounting method, and contact ratings while potentially varying in specific packaging or contact finish configurations.

Key Parameters

Parameter	Specification
Manufacturer Part Number	SSW-104-21-F-D
Manufacturer	Samtec Inc.
Category	Rectangular Connectors
Connector Type	Receptacle
Number of Positions	8
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
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SSW-104-21-F-D are identified within the Samtec SSW series based on the following critical parameters that must remain constant:

Connector type: Receptacle
Number of positions: 8
Pitch spacing: 0.100" (2.54mm)
Number of rows: 2
Row spacing: 0.100" (2.54mm)
Mounting type: Through hole
Termination method: Solder
Contact type: Forked
Current rating: 4.7A per contact
Operating temperature range: -55°C ~ 125°C
Contact finish (mating): Gold
Insulation material: Liquid Crystal Polymer (LCP)
Contact material: Phosphor bronze
Flammability rating: UL94 V-0

The identified substitutes (SSW-104-01-F-D and SSW-104-01-FM-D) maintain all critical electrical and mechanical parameters. Variations exist only in moisture sensitivity level classification and specific packaging designations, which do not affect functional compatibility in standard applications.

Parameter Comparison

Parameter	SSW-104-21-F-D	SSW-104-01-F-D	SSW-104-01-FM-D
Manufacturer	Samtec Inc.	Samtec Inc.	Samtec Inc.
Connector Type	Receptacle	Receptacle	Receptacle
Number of Positions	8	8	8
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)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Contact Type	Forked	Forked	Forked
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	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)
Insulation Color	Black	Black	Black
Insulation Height	0.335" (8.51mm)	0.335" (8.51mm)	0.335" (8.51mm)
Contact Length - Post	0.104" (2.64mm)	0.104" (2.64mm)	0.104" (2.64mm)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Contact Finish - Post	Tin	Tin	Tin
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Contact Shape	Square	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Base Product Number	SSW-104	SSW-104	SSW-104
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040	8536.69.4040
Moisture Sensitivity Level (MSL)	Not Applicable	1 (Unlimited)	Not Applicable
Product Status	Active	Active	Active
Inventory (Pcs)	1128	7190	1008

Engineering Selection Recommendations

All three parts—SSW-104-21-F-D, SSW-104-01-F-D, and SSW-104-01-FM-D—are active products from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts is based on availability and packaging designation rather than functional performance.

SSW-104-01-F-D offers the highest inventory availability at 7190 units and is suitable for applications where moisture sensitivity classification is not a constraint. SSW-104-21-F-D and SSW-104-01-FM-D both carry "Not Applicable" moisture sensitivity ratings and are appropriate for standard industrial and commercial applications.

All three parts meet ROHS3 compliance and UL94 V-0 flammability requirements, making them suitable for equivalent substitution in designs requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can SSW-104-01-F-D be used as a direct replacement for SSW-104-21-F-D?

A: Yes. Both parts share identical connector type, position count, pitch spacing, mounting method, termination type, current rating, and operating temperature range. The only difference is moisture sensitivity level classification, which does not affect functional compatibility in standard applications.

Q: What is the difference between SSW-104-01-F-D and SSW-104-01-FM-D?

A: Both parts are functionally identical in all electrical and mechanical parameters. The difference lies in packaging designation and moisture sensitivity level. SSW-104-01-F-D is classified as MSL 1 (Unlimited), while SSW-104-01-FM-D is classified as Not Applicable.

Q: Are all three parts RoHS compliant?

A: Yes. SSW-104-21-F-D, SSW-104-01-F-D, and SSW-104-01-FM-D are all ROHS3 compliant.

Q: What is the current rating for these connectors?

A: All three parts are rated for 4.7A per contact, supporting a maximum total current of 37.6A across all 8 positions under standard operating conditions.

Q: Do these connectors require special handling for moisture sensitivity?

A: SSW-104-21-F-D and SSW-104-01-FM-D are classified as Not Applicable for moisture sensitivity level, indicating standard handling procedures. SSW-104-01-F-D is classified as MSL 1 (Unlimited), which also requires standard handling.

Q: What is the operating temperature range?

A: All three parts operate across -55°C to 125°C, suitable for industrial and commercial temperature environments.

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