MTSW-104-07-S-D-240 Equivalent & Substitute Parts

Part Overview

The MTSW-104-07-S-D-240 is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 8-position, 2-row connector operates at 0.100" (2.54mm) pitch and supports board-to-board or cable connections with a 3A current rating. The part is active in production and RoHS3 compliant, making it suitable for modern electronic assemblies requiring reliable interconnection solutions.

Identifying equivalent and substitute parts becomes necessary when managing component availability, optimizing procurement timelines, or addressing supply chain constraints while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Number of Positions	8
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Shrouding	Unshrouded
Current Rating	3A
Operating Temperature Range	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MTSW-104-07-S-D-240 is determined by strict alignment of the following critical parameters:

Connector geometry: 8 positions, 2 rows, 0.100" (2.54mm) pitch and row spacing
Contact configuration: Male pin, square contact shape
Mounting and termination: Through-hole solder termination with push-pull fastening
Electrical performance: Current rating and operating temperature range
Compliance: RoHS status and material flammability rating (UL94 V-0)

The substitute part 929665-01-04-I (3M) meets the core geometric and functional requirements for board-to-board applications. However, variations in contact length, current rating, operating temperature range, and contact finish specifications must be evaluated for specific application requirements.

Parameter Comparison

Parameter	MTSW-104-07-S-D-240 (Samtec)	929665-01-04-I (3M)
Manufacturer	Samtec Inc.	3M
Number of Positions	8	8
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)
Contact Type	Male Pin	Male Pin
Connector Type	Header, Cuttable	Header
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded
Contact Length - Mating	0.240" (6.10mm)	0.235" (5.97mm)
Contact Length - Post	0.090" (2.29mm)	0.110" (2.79mm)
Overall Contact Length	0.430" (10.92mm)	0.445" (11.30mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish - Post	Tin	Gold
Contact Material	Phosphor Bronze	Copper Alloy
Insulation Material	Polyester, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled
Current Rating	3A	2.5A
Operating Temperature Range	-55°C ~ 125°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	RoHS3 Compliant	RoHS Compliant
Product Status	Active	Active

Engineering Selection Recommendations

Both the MTSW-104-07-S-D-240 and 929665-01-04-I are active production parts with UL94 V-0 flammability ratings and RoHS compliance, ensuring suitability for modern electronic assemblies.

The MTSW-104-07-S-D-240 provides a wider operating temperature range (-55°C to 125°C) and higher current rating (3A), making it the preferred choice for applications requiring extended thermal performance or higher current capacity.

The 929665-01-04-I operates within a narrower temperature range (-40°C to 105°C) with a 2.5A current rating. Selection of this substitute should be limited to applications where these electrical specifications are sufficient and where the geometric variations in contact length and post dimensions do not conflict with PCB layout or mating connector specifications.

Frequently Asked Questions (FAQ)

Q: Can the 929665-01-04-I directly replace the MTSW-104-07-S-D-240 in all applications?

A: Direct replacement is possible only when the application requirements fall within the 929665-01-04-I specifications. The substitute part has a lower current rating (2.5A vs. 3A) and narrower operating temperature range (-40°C to 105°C vs. -55°C to 125°C). Applications requiring the full thermal or current specifications of the original part require the MTSW-104-07-S-D-240.

Q: What are the key geometric differences between these parts?

A: The contact length specifications differ slightly. The MTSW-104-07-S-D-240 has a mating contact length of 0.240" (6.10mm) and post length of 0.090" (2.29mm), while the 929665-01-04-I has a mating contact length of 0.235" (5.97mm) and post length of 0.110" (2.79mm). These variations may affect PCB pad design and mating connector compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The MTSW-104-07-S-D-240 is RoHS3 compliant, and the 929665-01-04-I is RoHS compliant. Both meet current environmental regulations for electronic component manufacturing.

Q: What is the difference in contact finish between these parts?

A: The MTSW-104-07-S-D-240 uses gold mating contacts with tin post finish. The 929665-01-04-I uses gold finish on both mating and post contacts. This difference may affect solderability and long-term contact reliability in specific environments.

Q: Can these connectors be used interchangeably with the same mating connectors?

A: Interchangeability depends on the mating connector specifications. Both parts share identical pitch (0.100"), row spacing (0.100"), and contact geometry (square male pins), but variations in overall contact length and post dimensions require verification against the specific mating connector design.

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