TSW-126-14-F-D Equivalent & Substitute Parts

Part Overview

The TSW-126-14-F-D is a classic PCB header strip manufactured by Samtec Inc., designed for through-hole board-to-board or cable connections. This unshrouded, two-row connector features 52 positions at 0.100" (2.54mm) pitch with gold-plated mating contacts and tin-plated posts. The part maintains Active product status with 888 units currently in stock.

Substitute parts become necessary when the TSW-126-14-F-D reaches end-of-life, when inventory becomes unavailable, or when design requirements necessitate alternative connector configurations while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

TSW-126-14-F-D

Samtec Inc.In Stock: 977TSW-126-14-F-D Datasheet

Current PartRFQ

4-103322-0

TE Connectivity AMP ConnectorsIn Stock: 9194-103322-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the TSW-126-14-F-D is determined by the following critical parameters:

Primary Compatibility Criteria:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for PCB footprint compatibility
• Number of Rows: 2 — determines physical layout and spacing
• Row Spacing - Mating: 0.100" (2.54mm) — establishes inter-row distance
• Connector Type: Header — functional classification
• Contact Type: Male Pin — mating interface requirement
• Mounting Type: Through Hole — PCB assembly method
• Termination: Solder — connection method

Secondary Compatibility Considerations:

• Number of Positions: Substitutes may vary (52 positions is not a limiting factor for alternative designs)
• Contact Finish - Mating: Gold finish in the main part; alternatives with different finishes may be acceptable depending on application requirements
• Insulation Material: PBT in main part; thermoplastic alternatives maintain functional equivalence
• Operating Temperature Range: Main part operates -55°C ~ 125°C; substitutes with different ranges require application verification
• Product Status: Active status preferred; obsolete parts require inventory confirmation

The substitute part 4-103322-0 (TE Connectivity AMP Connectors) shares the critical parameters of 0.100" pitch, 2-row configuration, through-hole mounting, and solder termination. However, this part is marked Obsolete and features 80 positions rather than 52, representing a higher-capacity alternative within the same connector family.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: TSW-126-14-F-D (Samtec Inc.)

The TSW-126-14-F-D remains the recommended choice for new designs and ongoing production. This part maintains Active product status, ensuring long-term availability and supply chain stability. The connector is ROHS3 compliant, meeting current regulatory requirements for electronic components. The gold-plated mating contacts provide superior corrosion resistance compared to tin-lead alternatives, extending service life in demanding environments. The operating temperature range of -55°C to 125°C accommodates a broad spectrum of industrial and commercial applications. PBT insulation material delivers enhanced thermal stability and mechanical durability.

Alternative Selection: 4-103322-0 (TE Connectivity AMP Connectors)

The 4-103322-0 may be considered only when the TSW-126-14-F-D is unavailable and legacy system maintenance is required. This part is marked Obsolete, indicating discontinued production and limited inventory availability. The substitute does not meet ROHS3 compliance, restricting its use in applications subject to current environmental regulations. The tin-lead contact finish is inferior to gold plating in corrosion resistance. The operating temperature upper limit of 105°C is 20°C lower than the main part, potentially limiting use in high-temperature applications. However, the 4-103322-0 shares critical electrical and mechanical parameters: identical 0.100" pitch, 2-row configuration, through-hole mounting, and solder termination.

Compatibility Verification Requirements:

When evaluating the 4-103322-0 as a substitute:

• Confirm PCB layout can accommodate the 80-position connector (versus 52 positions in the main part)
• Verify PCB thickness compatibility with the 0.125" (3.18mm) post length
• Confirm application operating temperature does not exceed 105°C
• Assess regulatory compliance requirements; obsolete status and non-RoHS compliance may disqualify this part for regulated industries

Frequently Asked Questions (FAQ)

Q: Can the 4-103322-0 be used as a direct replacement for the TSW-126-14-F-D?

A: The 4-103322-0 shares the critical mating parameters (0.100" pitch, 2-row configuration, through-hole mounting, solder termination) required for PCB footprint compatibility. However, direct replacement is not recommended for new designs due to obsolete product status, non-RoHS3 compliance, and inferior contact finish. The substitute is suitable only for legacy system maintenance when the TSW-126-14-F-D is unavailable.

Q: What is the significance of the position count difference (52 vs. 80)?

A: The TSW-126-14-F-D provides 52 positions in a 2-row configuration, while the 4-103322-0 offers 80 positions. Position count does not affect electrical or mechanical compatibility at the mating interface. However, the larger connector footprint requires PCB layout accommodation. Unused positions in the substitute can be left unloaded if the application requires only 52 connections.

Q: How do the contact finishes affect performance?

A: The TSW-126-14-F-D features gold-plated mating contacts, which provide superior corrosion resistance, lower contact resistance, and extended service life in harsh environments. The 4-103322-0 uses tin-lead plating, which is adequate for standard applications but offers less protection against oxidation and corrosion. Gold plating is preferred for high-reliability applications, aerospace, and environments with temperature cycling or moisture exposure.

Q: Are there temperature limitations when using the 4-103322-0?

A: Yes. The 4-103322-0 operates within -65°C to 105°C, compared to the TSW-126-14-F-D range of -55°C to 125°C. Applications requiring operation above 105°C must use the main part. The substitute's lower upper temperature limit may restrict use in industrial equipment, automotive underhood applications, or other high-temperature environments.

Q: What does "Obsolete" product status mean for the 4-103322-0?

A: Obsolete status indicates that TE Connectivity has discontinued production of the 4-103322-0. Existing inventory may be available through authorized distributors, but supply is finite and unpredictable. Lead times may be extended, and pricing may increase due to scarcity. For production designs requiring long-term component availability, the Active-status TSW-126-14-F-D is the appropriate choice.

Q: Does RoHS3 compliance matter for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and increasingly required by major OEMs worldwide. The TSW-126-14-F-D is ROHS3 compliant; the 4-103322-0 is not. If your product is subject to EU regulations or customer RoHS requirements, the substitute cannot be used. Verify regulatory requirements before selecting components.

Q: What is the practical difference in contact post length (0.110" vs. 0.125")?

A: The 4-103322-0 post is 0.015" (0.39mm) longer than the TSW-126-14-F-D. This difference is negligible for standard PCB thicknesses (0.062" to 0.125"). However, verify that the substitute's post length is appropriate for your specific PCB thickness and solder joint requirements. Excessively long posts may create mechanical stress; excessively short posts may result in insufficient solder joint strength.

Q: Can I mix TSW-126-14-F-D and 4-103322-0 connectors in the same assembly?

A: Mixing connector types in the same assembly is not recommended. While both parts share the same pitch and row spacing, differences in contact finish, insulation height, and post length may create inconsistent mating characteristics and reliability issues. Maintain connector uniformity throughout an assembly.