TSW-134-08-T-S-RA Equivalent & Substitute Parts

Part Overview

The TSW-134-08-T-S-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board or cable applications. This 34-position connector operates at 0.100" (2.54mm) pitch and features solder termination with push-pull fastening. 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 main part's specifications, enabling direct functional replacement in compatible applications.

Substiute Parts

TSW-134-08-T-S-RA

Samtec Inc.In Stock: 1155TSW-134-08-T-S-RA Datasheet

Current PartRFQ

4-103759-0

TE Connectivity AMP ConnectorsIn Stock: 10984-103759-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-134-08-T-S-RA is determined by alignment of the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Connector Type: Header with male pin contacts
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Shape: Square
• Number of Rows: 1
• Insulation Material compatibility: PBT or equivalent thermoplastic

The substitute part 4-103759-0 (TE Connectivity AMP Connectors) shares these core electrical and mechanical parameters. However, differences exist in position count (40 vs. 34), insulation height, contact material, and compliance status, which must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TSW-134-08-T-S-RA is the preferred selection for new designs due to its active product status and ROHS3 compliance. The substitute part 4-103759-0 carries obsolete product status and RoHS non-compliance, limiting its applicability to legacy system maintenance or applications where regulatory compliance is not required.

Key differentiation factors include:

• Position count: The main part provides 34 positions while the substitute offers 40 positions. Applications requiring exactly 34 positions must use the main part or accept the larger footprint of the substitute.
• Compliance: ROHS3 compliance of the main part aligns with current regulatory requirements in most markets. RoHS non-compliance of the substitute restricts use to non-regulated applications.
• Contact finish: Tin finish on the main part versus Tin-Lead on the substitute reflects different manufacturing standards and environmental regulations.
• Insulation height: The 0.119" (3.02mm) height of the main part differs from the 0.138" (4.60mm) of the substitute, affecting PCB layout and mating clearances.

Selection should prioritize the TSW-134-08-T-S-RA for compliance-critical applications and new product development. The substitute may be considered only when legacy compatibility or specific mechanical constraints necessitate its use.

Frequently Asked Questions (FAQ)

Q: Can the 4-103759-0 directly replace the TSW-134-08-T-S-RA in all applications?

A: Direct replacement is not universal. While both connectors share the same 0.100" (2.54mm) pitch, mounting type, and termination method, the 40-position configuration of the substitute differs from the 34-position main part. Applications designed for 34 positions require the main part. Additionally, the substitute's obsolete status and RoHS non-compliance restrict its use in regulated environments.

Q: What are the implications of the different insulation heights?

A: The main part measures 0.119" (3.02mm) in insulation height while the substitute measures 0.138" (4.60mm). This 0.019" (0.48mm) difference affects PCB layout, mating clearances, and connector stack height. Designs with tight vertical constraints may not accommodate the substitute without modification.

Q: Does the contact material difference affect electrical performance?

A: Both the Phosphor Bronze contacts of the main part and the Copper Alloy contacts of the substitute are suitable for 0.100" (2.54mm) pitch header applications. The contact finish difference (Tin vs. Tin-Lead) reflects manufacturing standards rather than fundamental performance differences, though Tin-Lead finishes are subject to regulatory restrictions in many jurisdictions.

Q: Why is the substitute listed as obsolete?

A: The 4-103759-0 carries obsolete product status, indicating it is no longer in active production. This status affects availability, lead times, and manufacturer support. For new designs, the active TSW-134-08-T-S-RA is the appropriate selection.

Q: Are there compliance considerations for using the substitute?

A: Yes. The main part is ROHS3 compliant while the substitute is RoHS non-compliant. Applications subject to RoHS regulations, including consumer electronics and many industrial applications in regulated markets, must use the main part. The substitute is limited to applications where RoHS compliance is not required.

Q: What is the significance of the different operating temperature ranges?

A: The main part operates from -55°C to 105°C while the substitute operates from -65°C to 105°C. The substitute provides a lower minimum temperature rating. For applications requiring operation below -55°C, the substitute offers extended capability. For standard industrial applications, both ranges are typically adequate.