TSW-135-14-S-S Equivalent & Substitute Parts

Part Overview

The TSW-135-14-S-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This 35-position, single-row connector operates at 0.100" (2.54mm) pitch and features gold-plated mating contacts with tin-plated posts. The part maintains active product status with 737 units in current inventory. Substitute parts become necessary when addressing design revisions, supply chain constraints, or when transitioning from active to obsolete product lines while maintaining functional compatibility.

Substiute Parts

TSW-135-14-S-S

Samtec Inc.In Stock: 787TSW-135-14-S-S Datasheet

Current PartRFQ

4-102972-0

TE Connectivity AMP ConnectorsIn Stock: 15504-102972-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-135-14-S-S is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for PCB footprint compatibility
• Contact Type: Male Pin — determines mating interface
• Mounting Type: Through Hole — establishes board assembly method
• Termination: Solder — defines connection method
• Number of Rows: 1 — specifies connector geometry
• Connector Type: Header — functional classification
• Material Flammability Rating: UL94 V-0 — safety compliance requirement

The substitute part 4-102972-0 (TE Connectivity AMP Connectors) shares these critical parameters. However, the substitute differs in position count (40 vs. 35), contact dimensions, insulation height, contact finish thickness, operating temperature range, and product status (Obsolete vs. Active). These differences require engineering evaluation for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TSW-135-14-S-S maintains active product status with ROHS3 compliance, making it the preferred choice for new designs and applications requiring current regulatory alignment. The substitute part 4-102972-0 carries obsolete status and lacks RoHS compliance documentation, limiting its applicability to legacy system maintenance or applications where regulatory compliance is not required.

Selection between these parts depends on application-specific constraints:

• For new designs: TSW-135-14-S-S is recommended due to active status and ROHS3 compliance.
• For legacy system replacement: 4-102972-0 may be considered only when the original design specifically requires 40-position configuration or when supply of the main part is unavailable and design modification is feasible.

The 5-position difference (35 vs. 40) requires PCB layout modification and cannot be accommodated through simple substitution. Contact finish thickness variation (30.0µin vs. 15.0µin on mating surface) and post material difference (Tin vs. Tin-Lead) may affect long-term reliability in specific environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can 4-102972-0 be used as a direct drop-in replacement for TSW-135-14-S-S?

A: No. While both connectors share 0.100" (2.54mm) pitch and single-row through-hole configuration, the 40-position vs. 35-position difference requires PCB layout modification. Direct substitution without design changes is not possible.

Q: What are the key compatibility factors between these connectors?

A: Compatibility is determined by pitch (0.100" / 2.54mm), contact type (Male Pin), mounting method (Through Hole), and termination (Solder). Both parts meet these criteria. However, position count, insulation height, and contact post length differ and must be evaluated against specific application requirements.

Q: Why is the TSW-135-14-S-S preferred over 4-102972-0?

A: The TSW-135-14-S-S maintains active product status and ROHS3 compliance. The substitute part is obsolete and lacks RoHS compliance documentation, making it unsuitable for applications subject to current environmental regulations.

Q: Are there differences in operating temperature ranges?

A: Yes. TSW-135-14-S-S operates from -55°C to 125°C, while 4-102972-0 operates from -65°C to 105°C. The main part supports higher maximum temperature operation. Application thermal requirements must be considered when evaluating substitution.

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

A: TSW-135-14-S-S features 30.0µin (0.76µm) gold plating on mating contacts, while 4-102972-0 features 15.0µin (0.38µm). Thicker plating generally provides enhanced corrosion resistance and contact durability in demanding environments. This difference may impact long-term reliability in high-cycle mating applications.

Q: Does the Tin vs. Tin-Lead post finish affect substitution?

A: The post finish difference reflects manufacturing era and regulatory compliance. TSW-135-14-S-S uses Tin (lead-free), consistent with ROHS3 compliance. The substitute uses Tin-Lead, indicating pre-RoHS manufacturing. This difference is relevant for applications subject to lead-free soldering requirements and environmental regulations.