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

Part Overview

The TSW-124-14-L-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This connector features 24 vertical positions with 0.100" (2.54mm) pitch spacing and is classified as an unshrouded, board-to-board or cable connector with solder termination. The part maintains active product status and is ROHS3 compliant with UL94 V-0 flammability rating. Substitute parts are identified when equivalent electrical and mechanical parameters align with the core specifications, enabling functional interchangeability in applications where the original part is unavailable or inventory constraints exist.

Substiute Parts

TSW-124-14-L-S

Samtec Inc.In Stock: 886TSW-124-14-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

Substitute part identification for the TSW-124-14-L-S is based on alignment of the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Connector Type: Header with male pin contact
• Mounting Type: Through Hole
• Termination: Solder
• Contact Shape: Square
• Fastening Type: Push-Pull
• Insulation Material compatibility: PBT or equivalent thermoplastic
• Flammability Rating: UL94 V-0
• RoHS Compliance: ROHS3 Compliant

The substitute part 4-103321-8 (TE Connectivity AMP Connectors) shares these core electrical and mechanical parameters. However, differences exist in position count (40 vs. 24), contact finish specifications, and operating temperature range. These differences must be evaluated against specific application requirements to determine functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The TSW-124-14-L-S maintains active product status with established supply availability. The substitute part 4-103321-8 is classified as obsolete, which limits its suitability for new designs or long-term production applications.

Key considerations for substitution evaluation:

Position count difference (24 vs. 40) requires circuit board layout modification and connector footprint redesign. This is not a direct pin-for-pin substitution.

Operating temperature range differs: TSW-124-14-L-S operates -55°C to 125°C, while 4-103321-8 operates -65°C to 105°C. Applications requiring the full upper temperature range of the Samtec part cannot use the TE substitute without thermal performance verification.

Contact finish specification differs: TSW-124-14-L-S features gold-plated mating contacts, while 4-103321-8 uses tin plating. Gold plating provides superior corrosion resistance and contact reliability in low-signal applications.

Insulation height tolerance differs (0.100" vs. 0.090"), which may affect mating connector alignment and mechanical fit.

Both parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity classification.

For applications requiring the exact 24-position configuration with active product status and full temperature range support, the TSW-124-14-L-S is the appropriate selection. Substitution with 4-103321-8 is limited to applications where position count flexibility exists, lower maximum operating temperature is acceptable, and tin contact finish meets performance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 4-103321-8 be used as a direct replacement for the TSW-124-14-L-S?

A: No. The 4-103321-8 has 40 positions compared to 24 positions on the TSW-124-14-L-S. This requires circuit board redesign and is not a pin-for-pin substitution. Additionally, the 4-103321-8 is obsolete, making it unsuitable for new production.

Q: What are the key differences in contact specifications?

A: The TSW-124-14-L-S uses gold-plated mating contacts with phosphor bronze material, while the 4-103321-8 uses tin-plated contacts with copper alloy material. Gold plating provides enhanced corrosion resistance. Contact post length also differs: 0.110" (TSW-124-14-L-S) vs. 0.125" (4-103321-8).

Q: Are both parts RoHS compliant?

A: Yes. Both the TSW-124-14-L-S and 4-103321-8 are ROHS3 compliant and carry UL94 V-0 flammability ratings.

Q: What is the operating temperature difference?

A: The TSW-124-14-L-S operates from -55°C to 125°C, while the 4-103321-8 operates from -65°C to 105°C. Applications requiring operation above 105°C cannot use the TE substitute.

Q: Does the insulation height difference affect compatibility?

A: Yes. The TSW-124-14-L-S has 0.100" insulation height while the 4-103321-8 has 0.090" insulation height. This tolerance difference may affect mating connector alignment and mechanical fit, requiring verification against mating connector specifications.

Q: What is the current rating for each part?

A: The TSW-124-14-L-S does not specify a current rating in the provided data. The 4-103321-8 is rated for 3A. Current capacity must be verified against application requirements and mating connector specifications.

Q: Why is the 4-103321-8 listed as obsolete?

A: The 4-103321-8 is classified as obsolete by TE Connectivity, indicating it is no longer in active production. This limits availability and makes it unsuitable for new designs or applications requiring long-term supply assurance.