MTSW-102-24-S-S-290 Equivalent & Substitute Parts

Part Overview

The MTSW-102-24-S-S-290 is a rectangular connector header manufactured by Samtec Inc. from the Flex Stack, MTSW series. This through-hole connector features 2 positions at 0.100" (2.54mm) pitch and is designed for board-to-board or cable applications. The part is currently active in production with 950 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to component availability, supply chain considerations, or design flexibility within the allowed parameter tolerances.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	2
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Contact Material	Phosphor Bronze
Insulation Material	Polyester, Glass Filled
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Current Rating	3A
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MTSW-102-24-S-S-290 is determined by the following critical parameters:

Pitch - Mating: 0.100" (2.54mm) — must match exactly for PCB footprint compatibility
Number of Positions: 2 — electrical circuit requirement
Number of Rows: 1 — physical layout constraint
Contact Type: Male Pin — mating interface requirement
Mounting Type: Through Hole — assembly process compatibility
Termination: Solder — connection method requirement
Fastening Type: Push-Pull — mechanical engagement standard
Material Flammability Rating: UL94 V-0 — safety compliance requirement

The 3M 929450-01-02-I meets these critical parameters and qualifies as a substitute part. Variations in contact length, insulation height, contact finish thickness, and operating temperature range are within acceptable engineering tolerances for this connector category.

Parameter Comparison

Parameter	MTSW-102-24-S-S-290 (Samtec)	929450-01-02-I (3M)
Manufacturer	Samtec Inc.	3M
Series	Flex Stack, MTSW	929
Connector Type	Header, Cuttable	Header, Breakaway
Contact Type	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	2	2
Number of Rows	1	1
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.290" (7.37mm)	0.295" (7.49mm)
Contact Length - Post	0.090" (2.29mm)	0.130" (3.30mm)
Overall Contact Length	0.480" (12.19mm)	0.535" (14.69mm)
Insulation Height	0.100" (2.54mm)	0.110" (2.79mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	10.0µin (0.25µm)
Contact Material	Phosphor Bronze	Copper Alloy
Insulation Material	Polyester, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled
Operating Temperature	-55°C ~ 125°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Current Rating	3A	2.5A
RoHS Status	ROHS3 Compliant	REACH Unaffected

Engineering Selection Recommendations

Both the MTSW-102-24-S-S-290 and 929450-01-02-I are active production parts with UL94 V-0 flammability certification. The Samtec part offers a wider operating temperature range (-55°C to 125°C) and higher current rating (3A), making it suitable for applications requiring extended thermal performance. The 3M part operates within -40°C to 105°C with a 2.5A current rating and is suitable for standard industrial and consumer applications within this temperature envelope.

Selection between these parts should be based on specific application requirements: choose the Samtec MTSW-102-24-S-S-290 for applications requiring the full -55°C to 125°C temperature range or 3A current capacity; select the 3M 929450-01-02-I when operating conditions fall within -40°C to 105°C and 2.5A current requirements are sufficient. Both parts meet the same pitch, position count, and fundamental electrical interface requirements.

Frequently Asked Questions (FAQ)

Q: Can the 929450-01-02-I be used as a direct replacement for the MTSW-102-24-S-S-290?

A: Yes, within the specified operating conditions. Both connectors share identical pitch (0.100"), position count (2), row configuration (1), contact type (Male Pin), mounting method (Through Hole), and termination (Solder). Verify that your application operates within the 929450-01-02-I temperature range (-40°C to 105°C) and current requirements (2.5A maximum).

Q: What are the differences in contact post length between these parts?

A: The MTSW-102-24-S-S-290 has a contact post length of 0.090" (2.29mm), while the 929450-01-02-I has 0.130" (3.30mm). This difference affects PCB hole depth requirements and solder joint formation. Verify PCB design compatibility before substitution.

Q: Are both parts RoHS compliant?

A: The MTSW-102-24-S-S-290 is ROHS3 Compliant. The 929450-01-02-I is REACH Unaffected. Both meet environmental compliance standards for their respective regulatory frameworks.

Q: What is the difference between "Cuttable" and "Breakaway" connector types?

A: Both connector types allow individual positions to be separated from the main header strip. The Samtec part is designated as "Cuttable" and the 3M part as "Breakaway," but both serve the same functional purpose of allowing customization to the required number of positions.

Q: Which part should I select for high-temperature applications?

A: The MTSW-102-24-S-S-290 supports operating temperatures up to 125°C, making it the appropriate choice for high-temperature environments. The 929450-01-02-I is rated to 105°C maximum.

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