TSW-124-14-F-S Equivalent & Substitute Parts

Part Overview

The TSW-124-14-F-S is a classic PCB header strip manufactured by Samtec Inc., designed for through-hole board-to-board or cable connections. This unshrouded, single-row connector features 24 positions with 0.100" (2.54mm) pitch spacing and gold-plated mating contacts on phosphor bronze material. The part maintains active product status with 1071 units in current inventory.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory depletion, or when design requirements permit alternative configurations with compatible electrical and mechanical parameters. The TSW-124-14-F-S can be substituted with parts sharing identical pitch spacing, through-hole mounting, solder termination, and compatible contact materials and finishes.

Substiute Parts

TSW-124-14-F-S

Samtec Inc.In Stock: 1133TSW-124-14-F-S Datasheet

Current PartRFQ

4-103321-0

TE Connectivity AMP ConnectorsIn Stock: 10234-103321-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the TSW-124-14-F-S is determined by the following critical parameters:

Primary Compatibility Criteria:

• Pitch spacing: 0.100" (2.54mm) — must match exactly for mechanical interchangeability
• Mounting type: Through hole — maintains PCB assembly compatibility
• Termination method: Solder — ensures equivalent assembly process
• Contact type: Male pin — preserves mating interface function
• Connector style: Board to board or cable — maintains application flexibility
• Shrouding: Unshrouded — allows equivalent form factor

Secondary Compatibility Considerations:

• Contact material and finish composition
• Insulation material and flammability rating
• Operating temperature range
• RoHS and regulatory compliance status

The substitute part 4-103321-0 (TE Connectivity AMP Connectors) shares the core mechanical and electrical parameters required for substitution. However, differences exist in position count, contact finish composition, and product status that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (TSW-124-14-F-S): The TSW-124-14-F-S remains the preferred choice for new designs and applications requiring active product status, ROHS3 compliance, and extended operating temperature range to 125°C. The gold-plated contact finish provides superior corrosion resistance in demanding environments. Current inventory of 1071 units supports immediate availability.

Substitute Part Evaluation (4-103321-0): The 4-103321-0 from TE Connectivity AMP Connectors series (AMPMODU Mod II) presents a viable alternative when the primary part is unavailable, subject to the following conditions:

• Position Count Difference: The substitute provides 40 positions versus 24 positions in the primary part. This requires design modification to accommodate the additional positions or selective population of the connector.
• Product Status: The substitute carries obsolete status, limiting long-term procurement viability. Inventory of 980 units may support current demand but does not guarantee future availability.
• Contact Finish: Tin-lead finish differs from gold plating. Applications requiring enhanced corrosion resistance or operating in corrosive environments should verify compatibility.
• Operating Temperature: The substitute's upper temperature limit of 105°C is 20°C lower than the primary part. Applications operating above 105°C require the primary part.
• RoHS Compliance: The substitute does not carry ROHS3 compliance designation. Applications subject to RoHS regulations must use the primary part.
• Insulation Material: Thermoplastic insulation differs from PBT. Verify thermal stability and mechanical properties for the specific application environment.

Substitution Feasibility: The 4-103321-0 is suitable as a substitute only when all of the following conditions are met:

• Design permits 40-position connector configuration
• Operating temperature does not exceed 105°C
• RoHS compliance is not required
• Corrosion resistance requirements are compatible with tin-lead finish
• Long-term availability concerns are acceptable

Frequently Asked Questions (FAQ)

Q: Can the 4-103321-0 be used as a direct replacement for the TSW-124-14-F-S in existing designs?

A: Direct replacement is not recommended without design review. The substitute has 40 positions compared to 24 positions in the primary part, requiring PCB layout modification. Additionally, the substitute's lower operating temperature limit (105°C vs. 125°C) and different contact finish may affect performance in specific applications.

Q: What is the significance of the pitch spacing parameter in connector substitution?

A: Pitch spacing (0.100" or 2.54mm) determines mechanical interchangeability with mating connectors and PCB hole patterns. Both the primary and substitute parts share identical pitch spacing, ensuring compatibility with existing PCB designs and mating connectors. Pitch mismatch would render substitution impossible.

Q: Why does the substitute part have a different number of positions?

A: The 4-103321-0 is designed for higher-density applications requiring 40 connection points. The TSW-124-14-F-S serves applications requiring exactly 24 positions. Position count is application-specific and not a parameter that permits flexible substitution without design modification.

Q: What is the impact of contact finish differences between the two parts?

A: The primary part features gold plating (3.00µin thickness) on phosphor bronze, providing superior corrosion resistance and lower contact resistance. The substitute uses tin-lead finish (100.0µin thickness) on copper alloy. Gold finish is preferred for high-reliability applications, harsh environments, or applications requiring extended shelf life. Tin-lead finish is acceptable for standard industrial applications with moderate environmental exposure.

Q: How do the operating temperature ranges affect part selection?

A: The TSW-124-14-F-S operates from -55°C to 125°C, while the 4-103321-0 operates from -65°C to 105°C. The primary part supports higher maximum temperatures, making it mandatory for applications exceeding 105°C. The substitute's lower minimum temperature (-65°C vs. -55°C) provides advantage only in extreme cold environments.

Q: What does "obsolete" product status mean for the substitute part?

A: Obsolete status indicates the 4-103321-0 is no longer in active production. While current inventory of 980 units is available, future procurement may become difficult or impossible. For applications requiring long-term component availability, the active-status primary part (TSW-124-14-F-S) is the appropriate choice.

Q: Are there RoHS compliance implications when substituting these parts?

A: Yes. The TSW-124-14-F-S carries ROHS3 compliance certification, meeting European Union Restriction of Hazardous Substances regulations. The 4-103321-0 does not carry this certification. Applications subject to RoHS requirements must use the primary part or verify alternative compliance pathways with the substitute.

Q: What is the difference between the contact post lengths, and why does it matter?

A: The primary part has 0.110" (2.79mm) post length, while the substitute has 0.125" (3.18mm) post length. Post length determines solder joint depth and PCB hole engagement. Longer posts provide greater mechanical support but require deeper PCB holes. Verify PCB design accommodates the substitute's longer post length before substitution.

Q: Can the breakaway feature of the substitute part affect compatibility?

A: The 4-103321-0 includes a breakaway feature allowing individual position removal, while the TSW-124-14-F-S is standard unshrouded design. The breakaway feature adds functionality without compromising core compatibility. However, the physical form factor may differ slightly, requiring verification of mounting clearances in the application.

Q: What certifications and compliance standards apply to these connectors?

A: Both parts carry UL94 V-0 material flammability rating, indicating compliance with UL flammability standards. The primary part carries ROHS3 compliance. Both parts are classified under ECCN EAR99 and HTSUS 8536.69.4040 for export and tariff purposes. Verify all applicable regulatory requirements for your specific application and region.