MTSW-108-23-L-D-240 Equivalent & Substitute Parts

Part Overview

The MTSW-108-23-L-D-240 is a rectangular connector header manufactured by Samtec Inc. in the Flex Stack, MTSW series. This through-hole vertical mount connector accommodates 16 positions in a 2-row configuration with 0.100" (2.54mm) pitch spacing. The connector features male pins with gold-plated mating contacts and tin-plated posts, designed for board-to-board or cable applications with push-pull fastening. The part maintains active product status with 1074 units in current inventory. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements where mechanical or electrical parameter variations are acceptable within the allowed substitution criteria.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	16
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Phosphor Bronze
Insulation Material	Polyester, Glass Filled
Operating Temperature	-55°C ~ 125°C
Current Rating	3A
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MTSW-108-23-L-D-240 are qualified based on the following core parameters that define functional interchangeability:

Critical Parameters (Must Match):

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 16
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Material Flammability Rating: UL94 V-0

Allowed Variation Parameters:

Connector Type: Header variants (Cuttable, Breakaway)
Contact Length - Mating: Variation permitted within mechanical envelope constraints
Contact Length - Post: Variation permitted within mechanical envelope constraints
Overall Contact Length: Variation permitted
Insulation Height: Minor variation permitted (0.090" to 0.110")
Contact Finish - Mating: Gold or Tin acceptable
Contact Finish Thickness - Mating: Variation permitted
Contact Material: Phosphor Bronze or Brass acceptable
Insulation Material: Polyester Glass Filled, Thermoplastic, or PBT acceptable
Operating Temperature: Extended range acceptable (minimum -65°C, maximum 130°C)
Current Rating: Equal or greater than 3A acceptable
RoHS Status: ROHS3 or RoHS Compliant acceptable
Moisture Sensitivity Level: 1 (Unlimited) required

Substitute parts meeting these criteria are grouped by manufacturer and series for engineering selection.

Parameter Comparison

Parameter	MTSW-108-23-L-D-240 (Samtec)	77313-124-16LF (Amphenol ICC)	77313-824-16LF (Amphenol ICC)	826632-8 (TE Connectivity)	87215-5 (TE Connectivity)	A1-16PA-2.54DSA(71) (Hirose)	M20-9720846 (Harwin)	PBC08DAAN (Sullins)	PBC08DABN (Sullins)	PBC08DAEN (Sullins)	PEC08DAAN (Sullins)
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	16	16	16	16	16	16	16	16	16	16	16
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.240" (6.10mm)	0.266" (6.75mm)	0.266" (6.75mm)	0.264" (6.70mm)	0.318" (8.08mm)	0.236" (6.00mm)	0.276" (7.00mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.105" (2.67mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.126" (3.20mm)	0.125" (3.18mm)	0.118" (3.00mm)	0.122" (3.10mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.520" (13.21mm)	0.120" (3.05mm)
Overall Contact Length	0.445" (11.30mm)	0.480" (12.19mm)	0.480" (12.19mm)	0.500" (12.70mm)	0.533" (14.65mm)	0.454" (11.54mm)	0.496" (12.60mm)	0.450" (11.43mm)	0.560" (14.22mm)	0.850" (21.59mm)	0.450" (11.43mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.110" (2.79mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square	Square	Square	Circular	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold	Gold	Tin	Gold	Gold	Gold	Tin
Contact Finish Thickness - Mating	10.0µin (0.25µm)	30.0µin (0.76µm)	15.0µin (0.38µm)	3.90µin (0.099µm)	30.0µin (0.76µm)	8.00µin (0.203µm)	Not specified	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	100.0µin (2.54µm)
Contact Finish - Post	Tin	Tin	Tin	Tin	Gold	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Brass	Phosphor Bronze	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyester, Glass Filled	Thermoplastic	Thermoplastic	Polybutylene Terephthalate (PBT)	Thermoplastic	Polybutylene Terephthalate (PBT)	Polyamide (PA6T), Nylon 6T	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Operating Temperature	-55°C ~ 125°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 105°C	-65°C ~ 105°C	-55°C ~ 85°C	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Current Rating	3A	3A per Contact	3A per Contact	5A	3A	3A	3A per Contact	3A	3A	3A	3A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Green	Black	Black	Black	Black	Black	Black	Black
RoHS Status	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	Not applicable	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	Not Applicable

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The Amphenol ICC BERGSTIK® series parts (77313-124-16LF and 77313-824-16LF) and Sullins Connector Solutions PBC08 series (PBC08DAAN, PBC08DABN, PBC08DAEN) provide direct functional equivalence to the MTSW-108-23-L-D-240. These parts maintain identical pitch, position count, row configuration, and fastening characteristics. All primary substitutes carry ROHS3 or RoHS compliance and UL94 V-0 flammability ratings. The Amphenol ICC parts extend the operating temperature range to -65°C ~ 130°C, providing enhanced thermal performance. Sullins parts maintain the -65°C ~ 125°C operating range and offer multiple post length configurations (PBC08DAAN, PBC08DABN, PBC08DAEN) to accommodate varying application depths.

Secondary Substitutes (Extended Operating Range):

The Harwin M20-9720846 and TE Connectivity 826632-8 and 87215-5 parts meet all critical substitution parameters with variations in contact material, insulation material, and operating temperature ranges. The TE Connectivity 826632-8 supports 5A current rating, exceeding the 3A requirement. The Harwin M20-9720846 features tin-plated mating contacts and operates across -40°C ~ 105°C. The TE Connectivity 87215-5 incorporates circular contact geometry and extended mating contact length (0.318"), suitable for applications requiring deeper insertion engagement.

Specialized Substitute (Limited Temperature Range):

The Hirose Electric A1-16PA-2.54DSA(71) operates within a narrower temperature range (-55°C ~ 85°C) compared to the primary part. This substitute is suitable for applications where the reduced thermal envelope is acceptable. The part carries ROHS3 compliance and includes a 200V voltage rating specification.

Tin-Plated Mating Contact Alternative:

The Sullins PEC08DAAN provides tin-plated mating contacts with 100.0µin (2.54µm) finish thickness, offering an alternative to gold-plated contact finishes. This part maintains phosphor bronze contact material, PBT insulation, and -65°C ~ 125°C operating range, with the highest inventory availability (5574 units).

All substitute parts maintain active product status and meet the core electrical and mechanical requirements for board-to-board or cable connector applications with push-pull fastening in 16-position, 2-row configurations at 0.100" (2.54mm) pitch spacing.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine if a part can substitute for the MTSW-108-23-L-D-240?

A: The following parameters must match exactly: 0.100" (2.54mm) mating pitch, 16 positions, 2 rows, 0.100" (2.54mm) row spacing, male pin contact type, through-hole mounting, solder termination, push-pull fastening, and UL94 V-0 flammability rating. Variations in contact length, insulation material, contact finish, and operating temperature are permitted within the allowed substitution criteria.

Q: Can I use a substitute part with a different operating temperature range?

A: Yes, substitute parts with extended or different operating temperature ranges are acceptable if the application requirements fall within the substitute part's specified range. The MTSW-108-23-L-D-240 operates from -55°C ~ 125°C. Substitutes with ranges such as -65°C ~ 130°C (Amphenol ICC, Sullins) or -40°C ~ 105°C (Harwin) are qualified. The Hirose part with -55°C ~ 85°C range is suitable only for applications not exceeding 85°C.

Q: Are there differences in contact material between the main part and substitutes?

A: The MTSW-108-23-L-D-240 uses phosphor bronze contacts. Most substitutes (Amphenol ICC, TE Connectivity 87215-5, Harwin, Sullins) also use phosphor bronze. The TE Connectivity 826632-8 and Hirose A1-16PA-2.54DSA(71) use brass contacts. Both materials are acceptable for the specified application parameters.

Q: What is the difference between gold-plated and tin-plated mating contacts?

A: The MTSW-108-23-L-D-240 features gold-plated mating contacts with 10.0µin (0.25µm) thickness. Most substitutes maintain gold plating with varying thickness specifications. The Harwin M20-9720846 and Sullins PEC08DAAN feature tin-plated mating contacts. Both finishes meet the UL94 V-0 and RoHS compliance requirements. Contact finish selection depends on application-specific corrosion resistance and signal integrity requirements.

Q: Can I use a substitute part with a different contact length?

A: Yes. Contact length variations are permitted within the allowed substitution criteria. The MTSW-108-23-L-D-240 has a mating contact length of 0.240" (6.10mm). Substitutes range from 0.230" (5.84mm) to 0.318" (8.08mm). Longer contact lengths provide deeper insertion engagement; shorter lengths reduce overall connector height. Verify that the substitute part's contact length is compatible with your PCB thickness and mating connector depth requirements.

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

A: The MTSW-108-23-L-D-240 is classified as "Cuttable," allowing individual pins to be separated by cutting. Amphenol ICC BERGSTIK® and Sullins parts are classified as "Breakaway," allowing individual pins to be separated by breaking. Both types support the same 16-position, 2-row configuration and push-pull fastening. The functional difference is the mechanical method of pin separation; electrical and mechanical performance remain equivalent.

Q: Are all substitute parts RoHS compliant?

A: Most substitutes carry ROHS3 or RoHS compliance. The TE Connectivity 87215-5 lists RoHS status as "Not applicable." All parts meet UL94 V-0 flammability requirements. Verify RoHS compliance status with your procurement requirements before final part selection.

Q: What is the Moisture Sensitivity Level (MSL) requirement?

A: The MTSW-108-23-L-D-240 carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Most substitutes maintain MSL 1 (Unlimited). Sullins parts (PBC08DAAN, PBC08DABN, PBC08DAEN, PEC08DAAN) list MSL as "Not Applicable," which is acceptable for this connector category. No special moisture handling procedures are required for any of these parts.

Q: Can I use the TE Connectivity 826632-8 if my application requires higher current capacity?

A: Yes. The TE Connectivity 826632-8 supports 5A current rating per contact, exceeding the MTSW-108-23-L-D-240 specification of 3A. This part is suitable for applications requiring higher current capacity while maintaining all other electrical and mechanical compatibility parameters. Verify that your PCB trace and mating connector are also rated for 5A operation.

Q: What packaging options are available?

A: The MTSW-108-23-L-D-240 is supplied in Bulk packaging. Most substitutes are also supplied in Bulk. The Hirose A1-16PA-2.54DSA(71) is supplied in Tray packaging. Confirm packaging requirements with your assembly and procurement processes.

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