MTSW-103-08-G-S-340 Equivalent & Substitute Parts

Part Overview

The MTSW-103-08-G-S-340 is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 3-position, single-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 actively produced and ROHS3 compliant, making it suitable for modern electronic assemblies requiring standard pitch interconnection solutions.

Equivalent and substitute parts are identified to provide procurement flexibility, support supply chain continuity, and accommodate design requirements where alternative manufacturers' components meet the same electrical and mechanical specifications.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the MTSW-103-08-G-S-340 are identified based on the following critical parameters that determine functional and mechanical compatibility:

Connector configuration: 3-position, single-row header
Pitch specification: 0.100" (2.54mm) mating pitch
Contact type: Male pin configuration
Mounting method: Through-hole solder termination
Current capacity: 3A minimum rating
Contact material and finish: Phosphor bronze with gold plating on mating surfaces
Insulation material: Thermoplastic or glass-filled polyester
Flammability compliance: UL94 V-0 rating
Regulatory compliance: ROHS3 compliant

The TE Connectivity AMP Connectors part 87224-3 meets these core substitution criteria, enabling direct functional replacement in applications where the MTSW-103-08-G-S-340 is specified.

Parameter Comparison

Parameter	MTSW-103-08-G-S-340 (Samtec)	87224-3 (TE Connectivity)	Compatibility Notes
Manufacturer	Samtec Inc.	TE Connectivity AMP Connectors	Different manufacturers
Series	Flex Stack, MTSW	AMPMODU Mod II	Different product lines
Number of Positions	3	3	Identical
Number of Rows	1	1	Identical
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	Identical
Contact Type	Male Pin	Male Pin	Identical
Mounting Type	Through Hole	Through Hole	Identical
Termination	Solder	Solder	Identical
Contact Length - Mating	0.340" (8.64mm)	0.318" (8.08mm)	Variation within tolerance
Contact Length - Post	0.090" (2.29mm)	0.125" (3.18mm)	Variation within tolerance
Overall Contact Length	0.530" (13.46mm)	0.533" (14.65mm)	Negligible difference
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)	Variation within tolerance
Contact Shape	Square	Square	Identical
Contact Finish - Mating	Gold	Gold	Identical
Contact Material	Phosphor Bronze	Phosphor Bronze	Identical
Insulation Material	Polyester, Glass Filled	Thermoplastic	Both meet UL94 V-0
Current Rating	3A	3A	Identical
Operating Temperature	-55°C ~ 125°C	-65°C ~ 105°C	Overlapping range; TE part has lower upper limit
Flammability Rating	UL94 V-0	UL94 V-0	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical

Engineering Selection Recommendations

Both the MTSW-103-08-G-S-340 and 87224-3 are active products with ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on the following factors:

MTSW-103-08-G-S-340 (Samtec): Suitable for applications requiring the extended upper operating temperature limit of 125°C. The glass-filled polyester insulation provides enhanced mechanical stability in high-temperature environments.

87224-3 (TE Connectivity): Suitable for applications operating within the -65°C to 105°C range. The thermoplastic insulation material offers alternative material properties. This part provides equivalent functionality for standard temperature applications.

Both parts maintain identical electrical specifications (3A current rating), contact configuration (3-position, 0.100" pitch male pins), and mounting method (through-hole solder). The dimensional variations in contact length and insulation height fall within standard manufacturing tolerances and do not affect interchangeability in standard PCB applications.

Frequently Asked Questions (FAQ)

Q: Can the 87224-3 be used as a direct replacement for the MTSW-103-08-G-S-340 in all applications?

A: The 87224-3 is functionally equivalent for applications operating within its temperature range (-65°C to 105°C). If your application requires sustained operation above 105°C, the MTSW-103-08-G-S-340 is required due to its 125°C upper temperature limit.

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

A: The primary differences are manufacturer (Samtec vs. TE Connectivity), insulation material (glass-filled polyester vs. thermoplastic), and operating temperature upper limit (125°C vs. 105°C). All electrical and mechanical parameters for standard applications are equivalent.

Q: Are there any PCB layout considerations when switching between these parts?

A: The overall contact length differs by 0.007" (0.09mm), which is negligible for standard PCB design. Both parts use identical 0.100" (2.54mm) pitch and through-hole mounting, requiring no PCB layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the MTSW-103-08-G-S-340 and 87224-3 are ROHS3 compliant and carry UL94 V-0 flammability certification.

Q: What is the current-carrying capacity of these connectors?

A: Both parts are rated for 3A continuous current, meeting standard low-voltage signal and power distribution requirements in electronic assemblies.

Q: Are these parts available in different packaging options?

A: Both parts are supplied in bulk packaging. Inventory availability should be verified with your component supplier for current stock levels and lead times.

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