MTSW-103-08-L-D-306 Equivalent & Substitute Parts

Part Overview

The MTSW-103-08-L-D-306 is a rectangular connector header manufactured by Samtec Inc. in the Flex Stack, MTSW series. This through-hole vertical header connector features 6 positions arranged in 2 rows with 0.100" (2.54mm) pitch and mating contact length of 0.306" (7.77mm). The connector is actively produced and stocked with 966 units available. Equivalent and substitute parts are identified based on matching electrical and mechanical parameters to support design flexibility, supply chain alternatives, and inventory optimization.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	6
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

Substitute Part Grouping Explanation

Substitute parts for the MTSW-103-08-L-D-306 are qualified based on the following critical parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 6
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
Current Rating: 3A minimum
Operating Temperature Range: Minimum -55°C to +125°C
Material Flammability Rating: UL94 V-0

Substitute parts are grouped into two categories: Amphenol ICC (FCI) BERGSTIK® series headers (77313-124-06LF, 77313-127-06LF, 77313-424-06LF, 77313-824-06LF), Mill-Max Manufacturing spring piston connector (818-22-006-10-005101), and TE Connectivity AMPMODU Mod II header (826632-3). All qualified substitutes maintain the core electrical and mechanical interface requirements while offering variations in contact finish specifications and insulation materials.

Parameter Comparison

Parameter	MTSW-103-08-L-D-306 (Samtec)	77313-124-06LF (Amphenol ICC)	77313-127-06LF (Amphenol ICC)	77313-424-06LF (Amphenol ICC)	77313-824-06LF (Amphenol ICC)	818-22-006-10-005101 (Mill-Max)	826632-3 (TE Connectivity)
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)
Number of Positions	6	6	6	6	6	6	6
Number of Rows	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)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Spring Piston	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	N/A	Push-Pull
Contact Finish - Mating	Gold	Gold or Gold, GXT™	Gold or Gold, GXT™	Tin	Gold or Gold, GXT™	Gold	Gold
Current Rating	3A	3A per Contact	3A per Contact	3A per Contact	3A per Contact	Not specified	5A
Operating Temperature	-55°C ~ 125°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	Not specified	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	Not specified	UL94 V-0
RoHS Status	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed maintain active product status and meet UL94 V-0 flammability requirements. The Amphenol ICC BERGSTIK® series (77313-124-06LF, 77313-127-06LF, 77313-424-06LF, 77313-824-06LF) provides direct mechanical and electrical compatibility with extended operating temperature range (-65°C ~ 130°C) and RoHS compliance. These parts differ in contact finish specifications: 77313-124-06LF and 77313-824-06LF feature gold mating contact finish, while 77313-127-06LF offers gold with GXT™ enhancement, and 77313-424-06LF uses tin finish.

The Mill-Max 818-22-006-10-005101 spring piston connector offers an alternative contact interface while maintaining 0.100" (2.54mm) pitch and 6-position configuration. This part is ROHS3 compliant and suitable for applications requiring spring-loaded contact engagement.

The TE Connectivity 826632-3 AMPMODU Mod II header provides 5A current rating capacity, exceeding the 3A specification of the main part, with ROHS3 compliance. Operating temperature range extends to -65°C but is limited to +105°C maximum.

Frequently Asked Questions (FAQ)

Q: Can 77313-124-06LF, 77313-127-06LF, 77313-424-06LF, and 77313-824-06LF be used interchangeably with MTSW-103-08-L-D-306?

A: Yes, these Amphenol ICC BERGSTIK® parts share identical pitch (0.100"), position count (6), row configuration (2 rows), and electrical ratings (3A per contact). Differences exist in contact finish specifications and insulation material composition (thermoplastic vs. polyester glass-filled), which do not affect mechanical or electrical interface compatibility.

Q: What is the difference between the contact finish options in the Amphenol ICC substitute parts?

A: 77313-124-06LF and 77313-824-06LF feature gold mating contact finish with different thickness specifications (30.0µin and 15.0µin respectively). 77313-127-06LF offers gold with GXT™ enhancement at 30.0µin thickness. 77313-424-06LF uses tin finish at 78.7µin thickness. All maintain equivalent electrical performance for 3A applications.

Q: Is the Mill-Max 818-22-006-10-005101 a direct replacement?

A: The Mill-Max part maintains 0.100" (2.54mm) pitch and 6-position configuration but uses spring piston contact technology instead of male pin headers. This provides alternative contact engagement characteristics while preserving through-hole mounting and solder termination. Mechanical footprint and electrical interface differ from the main part.

Q: What are the temperature operating range differences?

A: MTSW-103-08-L-D-306 operates -55°C ~ 125°C. Amphenol ICC BERGSTIK® parts extend to -65°C ~ 130°C. TE Connectivity 826632-3 operates -65°C ~ 105°C. Selection depends on application temperature requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. MTSW-103-08-L-D-306, 818-22-006-10-005101, and 826632-3 are ROHS3 compliant. Amphenol ICC BERGSTIK® parts are RoHS compliant. All meet regulatory requirements for lead-free manufacturing.

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