TSW-102-18-G-D Equivalent & Substitute Parts

Part Overview

The TSW-102-18-G-D is an active rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This unshrouded header features 4 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing and gold-plated phosphor bronze contacts. The part is ROHS3 compliant and operates across -55°C to 125°C. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when inventory requirements necessitate alternative stock sources.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	4
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Contact Length - Mating	0.720" (18.29mm)
Contact Finish - Mating	Gold
Contact Material	Phosphor Bronze
Operating Temperature Range	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The HTSW-102-18-G-D qualifies as a direct substitute for the TSW-102-18-G-D based on the following critical parameters:

Identical connector type, contact type, and male pin configuration
Matching position count (4 positions in 2 rows)
Identical mating pitch and row spacing (0.100" / 2.54mm)
Identical contact length for mating interface (0.720" / 18.29mm)
Identical contact finish material and thickness (gold plating)
Identical base contact material (phosphor bronze)
Matching operating temperature range (-55°C ~ 125°C)
Identical flammability rating (UL94 V-0)
Both parts ROHS3 compliant

The primary difference between these parts is the insulation material: TSW-102-18-G-D uses Polybutylene Terephthalate (PBT), while HTSW-102-18-G-D uses Liquid Crystal Polymer (LCP). Both materials meet the specified electrical and mechanical requirements for this connector category.

Parameter Comparison

Parameter	TSW-102-18-G-D	HTSW-102-18-G-D
Manufacturer	Samtec Inc.	Samtec Inc.
Series	TSW	HTSW
Product Status	Active	Active
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	4	4
Number of Rows	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Contact Length - Mating	0.720" (18.29mm)	0.720" (18.29mm)
Contact Length - Post	0.110" (2.79mm)	0.110" (2.79mm)
Overall Contact Length	0.930" (23.62mm)	0.930" (23.62mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	10.0µin (0.25µm)
Contact Finish - Post	Gold	Gold
Contact Finish Thickness - Post	3.00µin (0.076µm)	3.00µin (0.076µm)
Contact Material	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polybutylene Terephthalate (PBT)	Liquid Crystal Polymer (LCP)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

Both TSW-102-18-G-D and HTSW-102-18-G-D are active products from Samtec Inc. with identical electrical and mechanical specifications for mating interfaces, contact geometry, and operating conditions. Both parts carry ROHS3 compliance and UL94 V-0 flammability certification.

Selection between these parts should be based on insulation material requirements specific to the application. The TSW series uses PBT insulation, while the HTSW series uses LCP insulation. Both materials support the specified operating temperature range and meet regulatory requirements. The choice between PBT and LCP depends on application-specific thermal, chemical, or mechanical stress considerations not specified in the provided parameters.

Frequently Asked Questions (FAQ)

Q: Are TSW-102-18-G-D and HTSW-102-18-G-D mechanically interchangeable?

A: Yes. Both parts share identical mating pitch (0.100" / 2.54mm), contact geometry, mounting type (through-hole), and overall dimensions. They are mechanically interchangeable in board-to-board and cable applications.

Q: What is the difference between PBT and LCP insulation materials?

A: PBT (Polybutylene Terephthalate) and LCP (Liquid Crystal Polymer) are both thermoplastic materials used for connector insulation. The specific performance differences depend on application requirements such as thermal cycling, chemical exposure, or mechanical stress, which are not specified in the provided parameters.

Q: Can I substitute HTSW-102-18-G-D for TSW-102-18-G-D in existing designs?

A: Substitution is possible based on matching electrical and mechanical parameters. However, design validation should account for any material-specific requirements in the original specification.

Q: Are both parts RoHS compliant?

A: Yes. Both TSW-102-18-G-D and HTSW-102-18-G-D are ROHS3 compliant.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across -55°C to 125°C.

Q: Do these connectors have different moisture sensitivity levels?

A: TSW-102-18-G-D has MSL 1 (Unlimited). HTSW-102-18-G-D is listed as Not Applicable for MSL.

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