TSW-112-26-L-D Equivalent & Substitute Parts

Part Overview

The TSW-112-26-L-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications requiring a 24-position, 2-row configuration with 0.100" (2.54mm) pitch. This connector is classified as an active product and serves board-to-board or cable interconnection applications in electronic assemblies. The part is RoHS3 compliant and carries UL94 V-0 flammability certification.

Substitute parts become necessary when the primary part experiences supply constraints, inventory limitations, or when design requirements permit alternative connector architectures that maintain functional compatibility within specified electrical and mechanical tolerances.

Substiute Parts

TSW-112-26-L-D

Samtec Inc.In Stock: 808TSW-112-26-L-D Datasheet

Current PartRFQ

4-103186-0-12

TE Connectivity AMP ConnectorsIn Stock: 11924-103186-0-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-112-26-L-D is determined by strict alignment of the following critical parameters:

• Position Count & Row Configuration: 24 positions in 2-row arrangement
• Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing
• Connector Architecture: Header type with male pin contacts
• Mounting Method: Through-hole solder termination
• Contact Interface: Gold-plated mating surface for signal integrity
• Mechanical Compatibility: Overall dimensions and insulation height must accommodate standard PCB footprints

The substitute part 4-103186-0-12 (TE Connectivity AMP Connectors AMPMODU Mod II series) satisfies these core substitution criteria. Both parts maintain identical position counts, pitch specifications, mounting methodology, and contact configuration. Variations exist in secondary parameters including insulation material composition, contact finish thickness specifications, and operating temperature ranges, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: TSW-112-26-L-D remains the preferred choice for new designs and applications requiring RoHS3 compliance. The part maintains active product status with established supply channels and carries current manufacturing certifications.

Substitute Consideration: The 4-103186-0-12 is classified as obsolete and does not meet RoHS compliance requirements. This part should be considered only in legacy system maintenance scenarios where existing designs are locked to this connector architecture and supply of the primary part is unavailable. The obsolete status and non-compliance designation present long-term supply and regulatory risks for new applications.

Mechanical Compatibility Note: The substitute part exhibits a 0.010" (0.254mm) reduction in insulation height and a 0.006" (0.152mm) reduction in post contact length. These dimensional variations may affect PCB footprint compatibility and should be verified against specific board layout requirements before implementation.

Compliance Consideration: Applications subject to RoHS directives or requiring lead-free solder processes must use the TSW-112-26-L-D. The substitute part's tin-lead contact finish and non-compliant status disqualify it from regulated environments.

Frequently Asked Questions (FAQ)

Q: Can the 4-103186-0-12 be used as a direct drop-in replacement for the TSW-112-26-L-D?

A: Both connectors share identical pitch specifications (0.100" / 2.54mm), position counts (24), row configurations (2), and mounting methods (through-hole solder). However, dimensional differences in insulation height (0.010" variance) and post contact length (0.006" variance) require PCB footprint verification. The substitute part's breakaway feature and reduced insulation height may affect mechanical fit in constrained layouts.

Q: What are the compliance implications of using the 4-103186-0-12?

A: The 4-103186-0-12 is RoHS non-compliant and carries a tin-lead contact finish. Applications requiring RoHS3 compliance, lead-free manufacturing processes, or operation in regulated markets cannot use this substitute. The TSW-112-26-L-D is the only compliant option for these requirements.

Q: How do the operating temperature ranges differ?

A: The TSW-112-26-L-D operates from -55°C to 125°C, while the 4-103186-0-12 operates from -65°C to 105°C. The substitute part offers lower temperature capability but reduced upper temperature limit. Applications requiring operation above 105°C must use the primary part.

Q: Are there differences in contact finish specifications?

A: Yes. The TSW-112-26-L-D uses gold-plated mating contacts with 10.0µin (0.25µm) thickness and tin post finish. The 4-103186-0-12 uses gold-plated mating contacts with 15.0µin (0.38µm) thickness and tin-lead post finish. The thicker gold plating on the substitute may provide enhanced wear resistance but introduces lead content incompatible with RoHS environments.

Q: What is the significance of the "breakaway" feature on the substitute part?

A: The 4-103186-0-12 includes a breakaway connector design, allowing individual connector modules to be separated. The TSW-112-26-L-D is a fixed 24-position header without this feature. This architectural difference may affect mechanical assembly procedures and PCB layout considerations.

Q: Which part should be specified for new product designs?

A: The TSW-112-26-L-D should be specified for all new designs. It maintains active product status, RoHS3 compliance, and current manufacturing support. The substitute part's obsolete classification and non-compliance status make it unsuitable for forward-looking applications.