MTSW-120-08-G-D-265 Equivalent & Substitute Parts

Part Overview

The MTSW-120-08-G-D-265 is a rectangular connector header manufactured by Samtec Inc. in the Flex Stack, MTSW series. This through-hole mounted connector features 40 positions arranged in 2 rows with 0.100" (2.54mm) pitch, designed for board-to-board or cable applications. The part is currently active in production with 716 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	40
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
Current Rating	3A
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MTSW-120-08-G-D-265 are qualified based on the following critical parameters that must align:

Connector Type: Header configuration (cuttable or breakaway acceptable)
Contact Type: Male Pin
Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 40
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 or RoHS Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these core electrical and mechanical requirements. Variations in contact length, insulation height, contact material, and contact finish are secondary parameters that may differ between substitutes while maintaining functional compatibility.

Parameter Comparison

Parameter	MTSW-120-08-G-D-265 (Samtec)	2-87227-0 (TE Connectivity)	2-826632-0 (TE Connectivity)	77313-122-40LF (Amphenol ICC)	M20-9762042 (Harwin)	M20-9762046 (Harwin)
Manufacturer	Samtec Inc.	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Amphenol ICC (FCI)	Harwin Inc.	Harwin Inc.
Series	Flex Stack, MTSW	AMPMODU Mod II	AMPMODU Mod II	BERGSTIK®	M20	M20
Connector Type	Header, Cuttable	Header	Header, Breakaway	Header, Breakaway	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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)
Number of Positions	40	40	40	40	40	40
Number of Rows	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)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.265" (6.73mm)	0.318" (8.08mm)	0.264" (6.70mm)	0.305" (7.75mm)	0.228" (5.80mm)	0.228" (5.80mm)
Contact Length - Post	0.165" (4.19mm)	0.125" (3.18mm)	0.126" (3.20mm)	0.120" (3.05mm)	0.122" (3.10mm)	0.122" (3.10mm)
Overall Contact Length	0.530" (13.46mm)	0.533" (14.65mm)	0.500" (12.70mm)	0.526" (13.35mm)	0.452" (11.48mm)	0.452" (11.48mm)
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)	0.110" (2.79mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold or Gold, GXT™	Gold	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Brass	Phosphor Bronze	Brass	Brass
Insulation Material	Polyester, Glass Filled	Thermoplastic	Polybutylene Terephthalate (PBT)	Thermoplastic	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
Operating Temperature	-55°C ~ 125°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 130°C	-40°C ~ 105°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	3A	3A	5A	3A per Contact	3A per Contact	3A per Contact
Insulation Color	Black	Black	Green	Black	Black	Black
RoHS Status	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Status	716 Pcs New Original In Stock	815 Pcs New Original In Stock	1100 Pcs New Original In Stock	955 Pcs New Original In Stock	3265 Pcs New Original In Stock	1490 Pcs New Original In Stock

Engineering Selection Recommendations

All identified substitute parts maintain active product status and comply with RoHS regulations. Selection between the MTSW-120-08-G-D-265 and its substitutes depends on specific application constraints:

2-87227-0 (TE Connectivity AMPMODU Mod II): Maintains phosphor bronze contact material and gold finish matching the primary part. Operating temperature range is reduced to -65°C ~ 105°C. Contact length variations require PCB layout verification.

2-826632-0 (TE Connectivity AMPMODU Mod II): Offers higher current rating of 5A with brass contact material and tin post finish. Operating temperature reduced to -65°C ~ 105°C. Insulation material is PBT with green color. Overall contact length is shorter at 0.500" (12.70mm).

77313-122-40LF (Amphenol ICC BERGSTIK®): Supports extended operating temperature to -65°C ~ 130°C. Phosphor bronze contact material with gold mating finish. Contact finish thickness on mating surface is 30.0µin (0.76µm), higher than the primary part. REACH status is affected.

M20-9762042 (Harwin M20): Cuttable header with brass contact material and gold mating finish. Operating temperature range -40°C ~ 105°C. Shortest overall contact length at 0.452" (11.48mm). Mated stacking heights available: 9.94mm, 10.64mm, 11.04mm, 16.54mm.

M20-9762046 (Harwin M20): Identical to M20-9762042 except mating contact finish is tin instead of gold. Same operating temperature and contact dimensions.

Frequently Asked Questions (FAQ)

Q: Can I substitute the MTSW-120-08-G-D-265 with any of these parts directly?

A: Direct substitution is possible only if your application tolerates the parameter variations listed in the comparison table. The core electrical and mechanical specifications (pitch, position count, row configuration, mounting type, and termination) are identical across all parts. Verify contact length, operating temperature range, and contact material compatibility with your specific PCB design and environmental requirements.

Q: What are the main differences between these substitute parts?

A: Primary differences include contact material (phosphor bronze vs. brass), contact finish (gold vs. tin), operating temperature range, overall contact length, and insulation material. The MTSW-120-08-G-D-265 uses phosphor bronze with gold finish and operates to 125°C. TE Connectivity parts operate to 105°C. Amphenol ICC 77313-122-40LF extends to 130°C. Harwin M20 series operates to 105°C with shorter contact length.

Q: Are all these parts RoHS compliant?

A: Yes. The MTSW-120-08-G-D-265, 2-826632-0, M20-9762042, and M20-9762046 are ROHS3 Compliant. The 2-87227-0 and 77313-122-40LF are RoHS Compliant. All meet RoHS requirements for lead-free applications.

Q: Which substitute offers the best current rating?

A: The 2-826632-0 (TE Connectivity) offers 5A current rating, compared to 3A for all other parts including the primary MTSW-120-08-G-D-265. This higher rating may be beneficial for higher-power applications.

Q: What is the impact of different contact materials?

A: The MTSW-120-08-G-D-265 uses phosphor bronze contacts, as do 2-87227-0 and 77313-122-40LF. The TE Connectivity 2-826632-0 and Harwin M20 series use brass contacts. Both materials are suitable for standard applications; material selection affects mechanical properties and cost. Phosphor bronze typically offers superior spring characteristics.

Q: Do contact length differences affect PCB design?

A: Yes. Contact length variations range from 0.228" (5.80mm) for Harwin M20 series to 0.318" (8.08mm) for 2-87227-0. Overall contact length ranges from 0.452" (11.48mm) to 0.533" (14.65mm). These differences impact PCB hole depth, trace routing, and component clearance. Verify your PCB stackup accommodates the selected part's contact dimensions.

Q: Which substitute has the widest operating temperature range?

A: The 77313-122-40LF (Amphenol ICC BERGSTIK®) supports -65°C ~ 130°C, the widest range among all parts. The primary MTSW-120-08-G-D-265 operates -55°C ~ 125°C. Harwin M20 series is limited to -40°C ~ 105°C.

Q: What inventory considerations should I evaluate?

A: Current stock levels vary: M20-9762042 (Harwin) has the highest inventory at 3265 units, followed by 2-826632-0 (TE Connectivity) at 1100 units. The primary MTSW-120-08-G-D-265 has 716 units available. Inventory levels may influence lead time and supply chain decisions.

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