TSW-128-14-S-S Equivalent & Substitute Parts

Part Overview

The TSW-128-14-S-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 28-position, single-row header operates at 0.100" (2.54mm) pitch and features gold-plated mating contacts with tin-plated posts. The part maintains active product status with 866 units in current inventory. Substitute parts are identified when equivalent electrical and mechanical parameters align within the allowed specifications for this connector category, enabling direct functional replacement in board-to-board or cable applications.

Substiute Parts

TSW-128-14-S-S

Samtec Inc.In Stock: 926TSW-128-14-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-128-14-S-S is determined by alignment of the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Connector Type: Header with male pin contacts
• Mounting Type: Through Hole with solder termination
• Contact Finish: Gold-plated mating surface
• Insulation Material: Thermoplastic or equivalent
• Material Flammability Rating: UL94 V-0
• Operating Temperature Range: Minimum -55°C, maximum 125°C or greater

The identified substitute part 4-102972-0 (TE Connectivity AMP Connectors) shares the core electrical and mechanical characteristics required for functional equivalence. However, differences in position count, contact dimensions, and product status must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TSW-128-14-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 is classified as obsolete and carries no RoHS designation, limiting its suitability for applications with regulatory compliance requirements.

Position count differs between the main part (28 positions) and the substitute (40 positions). Selection must account for PCB layout constraints and connector footprint compatibility. Both parts meet UL94 V-0 flammability requirements and operate within overlapping temperature ranges, though the main part supports extended high-temperature operation to 125°C compared to the substitute's 105°C maximum.

Contact post length varies by 0.015" (0.39mm), which may affect solder joint formation and PCB trace routing. Contact material composition differs (phosphor bronze versus copper alloy), potentially influencing electrical performance in high-current or high-frequency applications.

Frequently Asked Questions (FAQ)

Q: Can the 4-102972-0 directly replace the TSW-128-14-S-S in existing designs?

A: Direct replacement is not recommended without design review. The substitute part has 40 positions versus 28, requiring PCB layout modification. The obsolete status and lack of RoHS compliance present regulatory and supply chain risks.

Q: What are the critical compatibility factors between these parts?

A: Both parts share 0.100" (2.54mm) pitch, through-hole solder termination, gold-plated mating contacts, and UL94 V-0 flammability rating. Differences in position count, contact post length, and operating temperature range must be evaluated against specific application requirements.

Q: Does the contact post length difference affect PCB design?

A: Yes. The TSW-128-14-S-S has 0.110" (2.79mm) post length, while the 4-102972-0 has 0.125" (3.18mm). This 0.015" difference may impact solder joint geometry and PCB trace routing, particularly in high-density layouts.

Q: Are there temperature rating implications for application selection?

A: The TSW-128-14-S-S operates to 125°C maximum, while the 4-102972-0 is limited to 105°C. Applications requiring sustained operation above 105°C require the main part or alternative substitutes rated for higher temperatures.

Q: What is the significance of the obsolete product status for the substitute?

A: Obsolete parts present supply continuity risks and may not meet current manufacturing or regulatory standards. For new designs or long-term production, the active TSW-128-14-S-S is the appropriate selection.