TSW-133-14-S-S Equivalent & Substitute Parts

Part Overview

The TSW-133-14-S-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This 33-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 RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements allow for compatible alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

TSW-133-14-S-S

Samtec Inc.In Stock: 1103TSW-133-14-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-133-14-S-S is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for mechanical compatibility
• Connector Type: Header with male pin contacts
• Mounting Type: Through Hole
• Termination: Solder
• Contact Finish - Mating: Gold plating
• Insulation Material: Thermoplastic or equivalent
• Operating Temperature Range: Must encompass or exceed -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0 minimum
• RoHS Compliance: ROHS3 or equivalent

The substitute part 4-102972-0 (TE Connectivity AMP Connectors) shares the same pitch, connector type, mounting method, and termination approach. However, differences in position count (40 vs. 33), contact dimensions, and product status require engineering evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The TSW-133-14-S-S remains the preferred choice for new designs due to its active product status and full ROHS3 compliance. The part is currently in stock with 1076 units available.

The substitute part 4-102972-0 carries obsolete product status and does not maintain ROHS3 compliance documentation. Additionally, the substitute features 40 positions compared to the main part's 33 positions, requiring circuit board layout modifications. The operating temperature range of the substitute (-65°C ~ 105°C) does not fully encompass the main part's upper temperature limit of 125°C, creating potential thermal performance gaps in high-temperature applications.

Selection of 4-102972-0 is limited to legacy system maintenance or applications where the additional 7 positions and lower maximum operating temperature present no functional constraints.

Frequently Asked Questions (FAQ)

Q: Can 4-102972-0 directly replace TSW-133-14-S-S in existing designs?

A: Direct replacement is not recommended. The substitute has 40 positions versus 33 positions in the main part, requiring PCB redesign. The lower maximum operating temperature (105°C vs. 125°C) may not support all thermal environments. The obsolete status of 4-102972-0 creates long-term supply risk.

Q: What are the critical compatibility parameters for these connectors?

A: Both parts share 0.100" (2.54mm) pitch, single-row header configuration, through-hole mounting, and solder termination. These parameters ensure mechanical and electrical interface compatibility at the connector level. Position count, contact dimensions, and temperature ratings differ and must be evaluated against specific application requirements.

Q: Does the gold plating thickness difference affect performance?

A: The main part specifies 30.0µin (0.76µm) gold plating on mating contacts, while the substitute specifies 15.0µin (0.38µm). Both thicknesses provide corrosion protection and electrical conductivity. Thicker plating offers extended contact life in high-cycle mating applications. Application-specific mating cycle requirements determine whether this difference is material.

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

A: The main part uses tin-plated posts; the substitute uses tin-lead plating. Tin-lead provides enhanced solder wettability and joint reliability in wave soldering processes. Tin plating alone requires optimized soldering parameters. Design and manufacturing process compatibility should be confirmed before substitution.

Q: Are there RoHS compliance implications?

A: The main part maintains ROHS3 compliance certification. The substitute's RoHS status is listed as "Not applicable," indicating it predates or falls outside current compliance frameworks. Applications requiring documented RoHS compliance must use the main part or equivalent compliant alternatives.

Q: What inventory considerations apply?

A: The main part has 1076 units in stock with active product status, ensuring availability for current and future production. The substitute has 1530 units available but carries obsolete status, indicating no future manufacturing or support. Obsolete parts present supply risk for long-term production requirements.