TSW-123-14-S-S Equivalent & Substitute Parts

Part Overview

The TSW-123-14-S-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 23-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 full inventory availability. 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-123-14-S-S

Samtec Inc.In Stock: 1119TSW-123-14-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

Substitute relationships for the TSW-123-14-S-S are determined by alignment of the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — determines mechanical compatibility with mating connectors and PCB layouts
• Connector Type: Header with male pin contacts — establishes functional role in board-to-board or cable connections
• Mounting Type: Through Hole — defines PCB assembly process compatibility
• Termination: Solder — specifies connection method to printed circuit boards
• Material Flammability Rating: UL94 V-0 — ensures compliance with safety standards
• Contact Material and Finish: Gold-plated mating surface with tin-plated posts — provides electrical performance and corrosion resistance

The identified substitute part 4-102972-0 shares the same pitch, connector type, mounting method, and termination approach. However, differences in position count, contact dimensions, operating temperature range, and product status must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TSW-123-14-S-S remains the primary selection for new designs due to its active product status and ROHS3 compliance. The substitute part 4-102972-0 shares fundamental connector characteristics including pitch, mounting method, and flammability rating, enabling functional replacement in existing applications where position count and temperature range differences do not create constraints.

Selection of 4-102972-0 is appropriate only when:

• The application requires 40 positions or can accommodate the higher position count without PCB layout modification
• Operating temperature requirements fall within -65°C to 105°C
• The breakaway feature provides functional benefit to the assembly process
• Obsolete product status is acceptable for legacy system maintenance or repair

For new product development, the TSW-123-14-S-S is the recommended choice due to active availability and modern compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can 4-102972-0 directly replace TSW-123-14-S-S in existing designs?

A: Direct replacement is not recommended without design review. The substitute part has 40 positions versus 23, requiring PCB layout modification. The lower operating temperature maximum (105°C vs. 125°C) and different insulation height (0.090" vs. 0.100") must be evaluated against application requirements.

Q: What is the significance of the 0.100" (2.54mm) pitch specification?

A: Pitch determines mechanical and electrical compatibility with mating connectors and PCB pad spacing. Both parts share this pitch, enabling use of the same mating connector family and PCB footprint patterns within position count constraints.

Q: Why is the product status difference important?

A: TSW-123-14-S-S is active, ensuring continued manufacturing, availability, and support. The substitute 4-102972-0 is obsolete, meaning no new production occurs and inventory is limited to existing stock. Active products are preferred for new designs.

Q: Are there differences in contact material that affect electrical performance?

A: TSW-123-14-S-S uses phosphor bronze contacts while 4-102972-0 uses copper alloy. Both materials provide adequate electrical conductivity for standard applications. The gold plating on mating surfaces ensures corrosion resistance in both cases.

Q: What does the breakaway feature on 4-102972-0 provide?

A: The breakaway feature allows individual connector sections to be separated after assembly, enabling modular connector configurations. This feature is not present on the TSW-123-14-S-S standard header.

Q: How do the contact post lengths differ and why does this matter?

A: TSW-123-14-S-S has 0.110" posts while 4-102972-0 has 0.125" posts. Longer posts provide greater solder joint engagement with PCB pads, potentially improving mechanical strength. PCB pad depth design must accommodate the selected post length.