MTSW-108-08-S-S-235 Equivalent & Substitute Parts

Part Overview

The MTSW-108-08-S-S-235 is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 8-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 reliable interconnection solutions.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling component interchangeability in applications where the original part may be unavailable or where alternative sourcing is required.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable / Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	8
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Contact Length - Mating	0.235" (5.97mm)
Insulation Height	0.100" (2.54mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Material Flammability Rating	UL94 V-0
Current Rating	3A
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The 3M 929647-02-08-I qualifies as a substitute for the MTSW-108-08-S-S-235 based on the following alignment of critical parameters:

Connector Configuration: Both parts are 8-position, single-row male pin headers with 0.100" (2.54mm) pitch
Mounting and Termination: Both use through-hole solder termination
Contact Geometry: Both feature square contacts with 0.235" (5.97mm) mating contact length and 0.100" (2.54mm) insulation height
Electrical Performance: Both support gold-plated mating contacts and UL94 V-0 flammability rating
Compliance: Both are RoHS compliant

Variations exist in contact post length (0.195" vs. 0.210"), contact finish thickness, current rating (3A vs. 2.5A), and operating temperature range (-55°C to 125°C vs. -40°C to 105°C). These differences must be evaluated against specific application requirements.

Parameter Comparison

Parameter	MTSW-108-08-S-S-235 (Samtec)	929647-02-08-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	8	8
Number of Rows	1	1
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Contact Length - Mating	0.235" (5.97mm)	0.235" (5.97mm)
Contact Length - Post	0.195" (4.95mm)	0.210" (5.33mm)
Overall Contact Length	0.530" (13.46mm)	0.545" (13.84mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	10.0µin (0.25µm)
Contact Finish - Post	Tin	Gold
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
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

Both the MTSW-108-08-S-S-235 and 929647-02-08-I are active products with established compliance certifications. Selection between these parts depends on application-specific constraints:

The MTSW-108-08-S-S-235 is suitable for applications requiring extended temperature operation (-55°C to 125°C) and higher current capacity (3A). Its phosphor bronze contacts with tin post finish provide specific material characteristics for particular environmental conditions.

The 929647-02-08-I accommodates applications within the -40°C to 105°C temperature range with a 2.5A current rating. Its all-gold contact finish and PBT insulation material composition offer alternative material properties. The slightly longer contact post (0.210" vs. 0.195") may affect board-level clearance considerations.

Both parts maintain UL94 V-0 flammability compliance and RoHS compliance status, supporting use in regulated electronic assemblies.

Frequently Asked Questions (FAQ)

Q: Can the 929647-02-08-I directly replace the MTSW-108-08-S-S-235 in all applications?

A: Direct substitution is possible when application requirements fall within the 929647-02-08-I's operating parameters: temperature range of -40°C to 105°C and current load not exceeding 2.5A. The 0.015" (0.38mm) difference in contact post length must be evaluated for PCB clearance compatibility.

Q: What are the key differences in contact finish specifications?

A: The MTSW-108-08-S-S-235 uses gold-plated mating contacts (30.0µin thickness) with tin-plated posts. The 929647-02-08-I uses gold-plated mating contacts (10.0µin thickness) with gold-plated posts. These differences affect corrosion resistance and contact wear characteristics under specific environmental conditions.

Q: Are both parts suitable for high-temperature applications?

A: The MTSW-108-08-S-S-235 supports operation to 125°C, making it suitable for elevated-temperature environments. The 929647-02-08-I is rated to 105°C maximum. Application temperature requirements determine which part is appropriate.

Q: What is the significance of the cuttable versus breakaway connector type designation?

A: Both designations indicate the connector can be separated into individual positions. The specific mechanical implementation differs between manufacturers but does not affect electrical or mating characteristics for standard applications.

Q: Do both parts meet current RoHS requirements?

A: Yes. The MTSW-108-08-S-S-235 is ROHS3 compliant, and the 929647-02-08-I is RoHS compliant. Both meet current regulatory requirements for restricted substance elimination.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message