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 discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design and procurement requirements. The part operates across a temperature range of -55°C to 125°C and meets UL94 V-0 flammability standards with ROHS3 compliance.

Substiute Parts

TSW-112-26-L-D

Samtec Inc.In Stock: 922TSW-112-26-L-D Datasheet

Current PartRFQ

4-103186-0-12

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

MFR RecommendedRFQ

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 and Row Configuration: 24 positions in 2 rows
• Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing
• Connector Classification: Header type with male pin contacts
• Mounting Method: Through-hole solder termination
• Contact Interface: Gold-plated mating surface
• Insulation System: Polybutylene Terephthalate or equivalent thermoplastic material
• Environmental Rating: UL94 V-0 flammability compliance

The substitute part 4-103186-0-12 (TE Connectivity AMP Connectors) satisfies these core electrical and mechanical compatibility criteria, enabling direct functional substitution in applications where the TSW-112-26-L-D is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The 4-103186-0-12 provides functional equivalence to the TSW-112-26-L-D across all critical mating and mechanical parameters. Both connectors share identical pitch specifications, position configurations, and contact geometry, ensuring mechanical and electrical interchangeability in board-level applications.

Key considerations for selection:

Compliance Status: The TSW-112-26-L-D maintains ROHS3 compliance, while the 4-103186-0-12 is RoHS non-compliant. Applications subject to RoHS regulatory requirements must retain the Samtec part or identify alternative compliant sources.

Temperature Operating Range: The TSW-112-26-L-D operates to 125°C maximum, exceeding the 4-103186-0-12 specification of 105°C. Applications requiring sustained operation above 105°C are limited to the Samtec part.

Contact Post Length: The TSW-112-26-L-D provides 0.126" (3.20mm) post length versus 0.120" (3.05mm) for the TE Connectivity part. This 0.006" (0.15mm) difference is within typical PCB tolerance stackup for standard through-hole assembly.

Contact Finish Thickness: The 4-103186-0-12 provides enhanced gold plating thickness (15.0µin versus 10.0µin), offering improved contact durability and mating cycle performance.

Product Status: Both parts are classified as discontinued or obsolete, indicating limited future availability. Procurement planning should account for inventory depletion.

Frequently Asked Questions (FAQ)

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

A: Yes, for applications where RoHS compliance is not mandated and operating temperature does not exceed 105°C. The connectors share identical pitch, position count, row configuration, and contact geometry. The 0.006" difference in post length is within standard PCB tolerance for through-hole assembly.

Q: What are the critical compatibility parameters for this connector family?

A: Substitution requires matching: 24-position, 2-row configuration; 0.100" (2.54mm) pitch and row spacing; male pin contacts; through-hole solder termination; gold-plated mating surface; and UL94 V-0 flammability rating.

Q: Does the TE Connectivity part meet RoHS requirements?

A: No. The 4-103186-0-12 is RoHS non-compliant. Applications requiring RoHS certification must use the TSW-112-26-L-D or identify alternative compliant sources.

Q: What is the maximum operating temperature for each part?

A: The TSW-112-26-L-D operates from -55°C to 125°C. The 4-103186-0-12 operates from -65°C to 105°C. Applications requiring sustained operation above 105°C must use the Samtec part.

Q: Are there dimensional differences that affect PCB layout?

A: The overall contact length differs by 0.016" (0.40mm), with the TSW-112-26-L-D measuring 0.456" (11.58mm) and the 4-103186-0-12 measuring 0.440" (11.18mm). The post length difference of 0.006" (0.15mm) is within standard PCB hole tolerance. Verify PCB stackup and solder joint clearance for your specific assembly process.

Q: What is the current rating for these connectors?

A: The TSW-112-26-L-D does not specify a current rating in available documentation. The 4-103186-0-12 is rated for 3A per contact. Consult manufacturer datasheets for detailed electrical performance specifications.

Q: How does packaging affect inventory and procurement?

A: The TSW-112-26-L-D is available in unspecified packaging with 883 pieces in stock. The 4-103186-0-12 is supplied in bulk packaging with 1176 pieces available. Verify packaging compatibility with your assembly process and storage requirements.