TSW-135-07-S-S Equivalent & Substitute Parts

Part Overview

The TSW-135-07-S-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 35-position, single-row connector operates at 0.100" (2.54mm) pitch and is classified as an active product. The connector features gold-plated mating contacts, tin-plated posts, and phosphor bronze contact material, suitable for board-to-board or cable interconnection in industrial and commercial applications.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements necessitate alternative connector configurations with compatible electrical and mechanical characteristics.

Substiute Parts

TSW-135-07-S-S

Samtec Inc.In Stock: 1001TSW-135-07-S-S Datasheet

Current PartRFQ

4-103185-0

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-135-07-S-S is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for PCB footprint compatibility
• Connector Type: Header with male pin contacts for board-to-board or cable applications
• Mounting Type: Through hole solder termination
• Number of Rows: Single row configuration
• Contact Finish - Mating: Gold plating for reliable signal transmission
• Insulation Material: PBT or equivalent thermoplastic for mechanical stability
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• Flammability Rating: UL94 V-0 compliance required

The substitute part 4-103185-0 (TE Connectivity AMP Connectors) shares the same pitch, connector type, mounting method, and row configuration. However, the number of positions differs (40 vs. 35), which affects physical footprint and board layout compatibility. This difference must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TSW-135-07-S-S maintains active product status with ROHS3 compliance, making it the preferred choice for new designs and applications requiring regulatory adherence. The substitute part 4-103185-0 is classified as obsolete and carries no RoHS designation, limiting its suitability for modern applications subject to environmental compliance requirements.

Key differences affecting substitution decisions:

• Position Count: The 40-position configuration of 4-103185-0 exceeds the 35-position requirement of TSW-135-07-S-S. This necessitates PCB layout modification and may introduce incompatibility with existing mating connectors.
• Operating Temperature Range: TSW-135-07-S-S supports -55°C ~ 125°C, while 4-103185-0 supports -65°C ~ 105°C. Applications requiring operation above 105°C cannot use the substitute part.
• Contact Finish Thickness: TSW-135-07-S-S provides 30.0µin gold plating versus 15.0µin on 4-103185-0, offering enhanced durability and contact reliability.
• Post Material: TSW-135-07-S-S uses tin plating; 4-103185-0 uses tin-lead, which may conflict with lead-free assembly requirements.
• Regulatory Compliance: ROHS3 compliance of TSW-135-07-S-S versus non-applicable status of 4-103185-0 represents a significant compliance gap.

Substitution of 4-103185-0 for TSW-135-07-S-S is not recommended for new designs or applications requiring regulatory compliance. Use only when legacy system maintenance or specific design constraints mandate the 40-position AMPMODU configuration.

Frequently Asked Questions (FAQ)

Q: Can 4-103185-0 be used as a direct replacement for TSW-135-07-S-S?

A: No. While both connectors share 0.100" (2.54mm) pitch and through-hole solder termination, the 40-position configuration of 4-103185-0 differs from the 35-position TSW-135-07-S-S. Direct substitution requires PCB redesign and mating connector modification. Additionally, the obsolete status and lack of RoHS compliance of 4-103185-0 make it unsuitable for new applications.

Q: What are the critical compatibility parameters for this connector family?

A: Pitch (0.100" / 2.54mm), connector type (header with male pins), mounting method (through-hole solder), row configuration (single row), and contact finish (gold-plated mating surface) are the primary determinants of mechanical and electrical compatibility. Position count directly affects PCB footprint and must align with design specifications.

Q: Does the operating temperature difference affect substitution feasibility?

A: Yes. TSW-135-07-S-S operates to 125°C maximum, while 4-103185-0 operates to 105°C maximum. Applications requiring operation above 105°C cannot use 4-103185-0. Conversely, TSW-135-07-S-S supports the lower temperature extreme of -55°C, matching 4-103185-0's -65°C capability.

Q: What is the significance of the contact finish thickness difference?

A: TSW-135-07-S-S provides 30.0µin (0.76µm) gold plating on mating contacts versus 15.0µin (0.38µm) on 4-103185-0. Thicker plating provides extended contact life, improved corrosion resistance, and enhanced reliability in high-cycle mating applications. This difference may be critical for applications involving frequent connector engagement.

Q: Are there RoHS compliance implications for substitution?

A: Yes. TSW-135-07-S-S is ROHS3 compliant, meeting current environmental regulations. 4-103185-0 carries no RoHS designation and may contain restricted substances. Applications subject to RoHS requirements cannot use 4-103185-0 as a substitute.

Q: How does the breakaway feature of 4-103185-0 affect compatibility?

A: The breakaway feature of AMPMODU Mod II connectors allows individual position separation. This feature does not affect electrical or mechanical compatibility with standard header applications but may introduce unintended functionality if the design does not require or accommodate breakaway capability.