TSW-118-14-L-S Equivalent & Substitute Parts

Part Overview

The TSW-118-14-L-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This unshrouded, single-row header accommodates 18 positions at 0.100" (2.54mm) pitch and features male pins with gold-plated mating contacts and tin-plated posts. The connector is actively produced and maintains full RoHS3 compliance with UL94 V-0 flammability rating.

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

Substiute Parts

TSW-118-14-L-S

Samtec Inc.In Stock: 1019TSW-118-14-L-S Datasheet

Current PartRFQ

4-103321-8

TE Connectivity AMP ConnectorsIn Stock: 28654-103321-8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-118-14-L-S is determined by the following critical parameters:

• Pitch - Mating: Must be 0.100" (2.54mm) to ensure mechanical and electrical compatibility with mating receptacles
• Connector Type: Header configuration required for board-to-board or cable applications
• Contact Type: Male pin configuration mandatory
• Mounting Type: Through-hole termination required
• Termination Method: Solder termination required
• Operating Temperature Range: Must encompass or exceed -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0 compliance required
• RoHS Status: ROHS3 compliance required

The substitute part 4-103321-8 (TE Connectivity AMP Connectors) shares the core mating pitch, connector type, contact configuration, and mounting methodology. However, this part operates as a 40-position header with breakaway capability, representing a higher-density alternative within the same connector family. Substitution is valid only when the application can accommodate the increased position count or when individual positions are utilized selectively.

Parameter Comparison

Engineering Selection Recommendations

The TSW-118-14-L-S maintains active product status with full ROHS3 compliance and UL94 V-0 flammability certification, making it the preferred selection for new designs and ongoing production.

The substitute part 4-103321-8 carries obsolete product status, indicating discontinued manufacturing and potential long-term availability constraints. While this part meets core electrical and mechanical compatibility criteria through matching mating pitch, connector type, contact configuration, and mounting methodology, its obsolescence status and reduced operating temperature maximum (105°C versus 125°C) present considerations for applications requiring extended thermal performance or long-term supply assurance.

Selection between these parts should prioritize the active-status TSW-118-14-L-S for applications where the 18-position configuration is sufficient. The 4-103321-8 substitute is applicable only when higher position density is required and the reduced upper operating temperature limit is acceptable for the intended application environment.

Frequently Asked Questions (FAQ)

Q: Can the 4-103321-8 directly replace the TSW-118-14-L-S in existing designs?

A: Direct replacement is not recommended. The 4-103321-8 provides 40 positions versus 18 positions in the TSW-118-14-L-S. While the mating pitch and contact configuration are compatible, the increased physical footprint and position count require PCB layout modifications. Additionally, the obsolete status of the 4-103321-8 creates supply chain risk.

Q: What are the critical compatibility parameters for substitution?

A: Substitutes must maintain 0.100" (2.54mm) mating pitch, male pin contact type, through-hole solder termination, unshrouded header configuration, and single-row layout. Operating temperature range must support the application requirements, and RoHS3 compliance with UL94 V-0 flammability rating must be maintained.

Q: Does the difference in contact finish affect electrical performance?

A: The TSW-118-14-L-S features gold-plated mating contacts, while the 4-103321-8 uses tin plating. Both finishes provide adequate electrical conductivity and corrosion resistance for standard applications. Contact finish selection is application-dependent and does not inherently prevent substitution when other parameters align.

Q: Why is the operating temperature range different between these parts?

A: The TSW-118-14-L-S operates from -55°C to 125°C, while the 4-103321-8 operates from -65°C to 105°C. The lower maximum temperature of the substitute part may limit suitability for high-temperature applications. Design requirements must specify the required operating envelope before substitution is confirmed.

Q: What is the significance of the breakaway feature on the 4-103321-8?

A: The breakaway feature allows individual positions to be separated from the main header assembly. This capability is not present on the TSW-118-14-L-S. The breakaway feature does not affect substitution compatibility but may provide additional design flexibility in applications requiring modular connector configurations.