TSW-140-07-L-S Equivalent & Substitute Parts

Part Overview

The TSW-140-07-L-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This vertical 40-position connector operates at 0.100" (2.54mm) pitch and is classified as an active product. Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements necessitate alternative connector series with compatible electrical and mechanical specifications.

Substiute Parts

TSW-140-07-L-S

Samtec Inc.In Stock: 1162TSW-140-07-L-S Datasheet

Current PartRFQ

4-103185-0

TE Connectivity AMP ConnectorsIn Stock: 15934-103185-0 Datasheet

MFR RecommendedRFQ

9-146280-0

TE Connectivity AMP ConnectorsIn Stock: 29289-146280-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-140-07-L-S is determined by strict alignment of the following parameters:

• Connector Type: Header (with or without breakaway feature)
• Contact Type: Male Pin
• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 40
• Number of Rows: 1
• Mounting Type: Through Hole
• Termination: Solder
• Contact Finish - Mating: Gold
• Material Flammability Rating: UL94 V-0

The substitute parts 4-103185-0 and 9-146280-0, both manufactured by TE Connectivity AMP Connectors, meet these core electrical and mechanical requirements. Variations in insulation material, contact post specifications, and product status do not preclude substitution when the mating interface parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

9-146280-0 (TE Connectivity) is the primary substitute for the TSW-140-07-L-S. This part maintains active product status, carries RoHS Compliant certification, and provides REACH Unaffected status. The mating interface parameters are identical to the main part, ensuring direct compatibility in board-level applications. The higher contact finish thickness on the mating surface (15.0µin versus 10.0µin) provides enhanced durability in high-cycle mating environments.

4-103185-0 (TE Connectivity) is a secondary substitute option. Although this part is classified as obsolete, it meets all core electrical and mechanical substitution criteria. Selection of this part should be limited to applications where inventory availability is critical and long-term supply continuity is not a design requirement. The Tin-Lead contact finish on the post may present compatibility considerations in RoHS-restricted environments.

Both substitute parts feature the breakaway connector option, which provides additional design flexibility not present in the main part. The operating temperature range of -65°C to 105°C in the substitute parts is narrower than the main part's -55°C to 125°C range; applications requiring operation above 105°C must retain the TSW-140-07-L-S.

Frequently Asked Questions (FAQ)

Q: Can 9-146280-0 be used as a direct replacement for TSW-140-07-L-S in existing designs?

A: Yes. The mating pitch (0.100"), position count (40), row configuration (1), contact type (male pin), and contact finish (gold) are identical. The connector will mate with existing receptacles designed for the TSW-140-07-L-S. Minor differences in post length (0.120" versus 0.100") and insulation height (0.090" versus 0.100") do not affect mating compatibility but may require PCB layout verification for solder joint clearance.

Q: What is the difference between 4-103185-0 and 9-146280-0?

A: Both parts are TE Connectivity AMPMODU Mod II series connectors with identical mating specifications. The primary differences are: 4-103185-0 is obsolete with Tin-Lead post finish, while 9-146280-0 is active with Tin post finish and LCP insulation material. For new designs, 9-146280-0 is the recommended choice.

Q: Are there temperature limitations when substituting with TE Connectivity parts?

A: Yes. The substitute parts operate from -65°C to 105°C, while the TSW-140-07-L-S operates from -55°C to 125°C. Applications requiring sustained operation above 105°C must use the original Samtec part.

Q: Do the substitute parts have RoHS compliance?

A: 9-146280-0 is RoHS Compliant. 4-103185-0 carries "Not applicable" status due to its obsolete classification. For new designs subject to RoHS requirements, 9-146280-0 is the appropriate selection.

Q: What is the significance of the breakaway feature in the substitute parts?

A: The breakaway feature allows individual connector positions to be separated after assembly, providing design flexibility for applications requiring variable pin counts. The TSW-140-07-L-S does not include this feature. This difference does not affect substitution compatibility but may enable additional design options in new applications.