MTSW-104-07-S-S-240 Equivalent & Substitute Parts

Part Overview

The MTSW-104-07-S-S-240 is a rectangular connector header manufactured by Samtec Inc. in the Flex Stack, MTSW series. This through-hole, vertical-mount connector features 4 positions at 0.100" (2.54mm) pitch and is designed for board-to-board or cable applications. The part is active in production with 1082 units in current inventory. Equivalent parts are identified when component availability, lead time, or supply chain requirements necessitate alternative sourcing while maintaining functional compatibility.

Substiute Parts

MTSW-104-07-S-S-240

Samtec Inc.In Stock: 1183MTSW-104-07-S-S-240 Datasheet

Current PartRFQ

929647-01-04-I

3MIn Stock: 2289929647-01-04-I Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MTSW-104-07-S-S-240 is determined by the following critical parameters:

• Connector Type: Header configuration (cuttable or breakaway acceptable)
• Contact Type: Male pin
• Number of Positions: 4 positions
• Pitch - Mating: 0.100" (2.54mm) exact match
• Mounting Type: Through hole
• Termination: Solder
• Shrouding: Unshrouded
• Contact Shape: Square
• Insulation Material: Polyester or glass-filled polymer
• Material Flammability Rating: UL94 V-0
• RoHS Compliance: ROHS3 or equivalent

The 3M 929647-01-04-I meets these core substitution criteria. Both parts share identical pitch, position count, mounting method, and termination type. Both are unshrouded headers with square contacts and UL94 V-0 rated insulation materials. Compliance certifications align across both parts.

Parameter Comparison

Engineering Selection Recommendations

Both the MTSW-104-07-S-S-240 and 929647-01-04-I are active production parts with RoHS compliance and UL94 V-0 flammability ratings. Selection between these parts is based on the following engineering considerations:

MTSW-104-07-S-S-240 (Samtec) is preferred when:

• Operating temperature range of -55°C to 125°C is required
• Current rating of 3A per contact is specified
• Cuttable header configuration is advantageous for custom position counts
• Extended temperature performance is critical

929647-01-04-I (3M) is suitable when:

• Operating temperature range of -40°C to 105°C meets application requirements
• Current rating of 2.5A per contact is sufficient
• Breakaway header configuration is acceptable
• Supply availability or lead time favors 3M sourcing
• Enhanced thermal insulation material (PBT) is beneficial

Both parts share identical pitch, position count, mounting type, and termination method. Dimensional variations in contact length are minor and typically within standard PCB design tolerances. Verify post length compatibility with PCB hole depth during design validation.

Frequently Asked Questions (FAQ)

Q: Can the 929647-01-04-I directly replace the MTSW-104-07-S-S-240 in existing designs?

A: Direct replacement is possible in most applications. The critical compatibility factors are identical: 4-position, 0.100" pitch, through-hole solder termination, and unshrouded header configuration. Verify that the application's operating temperature range does not exceed -40°C to 105°C and that the current requirement does not exceed 2.5A per contact. Confirm PCB hole depth accommodates the 0.110" post length of the 3M part.

Q: What is the difference between "cuttable" and "breakaway" header configurations?

A: Both configurations allow position customization. Cuttable headers (Samtec) are separated by cutting the insulation strip between positions. Breakaway headers (3M) feature perforated insulation that separates cleanly without cutting. Functionally, both achieve the same result for custom position counts.

Q: Are there dimensional concerns when substituting between these parts?

A: Contact length variations exist: the 3M part has a 0.020" longer post (0.110" vs. 0.090") and 0.015" greater overall length (0.445" vs. 0.430"). These differences are within typical PCB design tolerances but should be verified for applications with tight vertical clearance constraints or specific hole depth requirements.

Q: Do both parts meet the same compliance standards?

A: Both parts are RoHS compliant and carry UL94 V-0 flammability ratings. The Samtec part specifies ROHS3 compliance, while the 3M part indicates general RoHS compliance. Both share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

Q: What is the current rating difference, and does it matter?

A: The Samtec part is rated at 3A per contact, while the 3M part is rated at 2.5A. For applications requiring continuous current above 2.5A per contact, the Samtec part is required. For applications at or below 2.5A, both parts are suitable.

Q: Are the contact materials interchangeable?

A: The Samtec part uses phosphor bronze contacts, while the 3M part uses copper alloy contacts. Both materials provide adequate electrical conductivity and are standard for this connector class. The gold plating on mating surfaces ensures reliable contact in both cases.