TSW-140-07-S-T Equivalent & Substitute Parts

Part Overview

The TSW-140-07-S-T is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This 120-position connector operates across a wide temperature range of -55°C to 125°C and features gold-plated mating contacts with tin-plated posts. The part is currently active in production and RoHS3 compliant, making it suitable for modern electronic assemblies requiring reliable interconnection solutions.

Identifying equivalent and substitute parts is necessary when addressing supply chain constraints, inventory availability, or specific application requirements that may benefit from alternative connector designs with comparable electrical and mechanical characteristics.

Substiute Parts

TSW-140-07-S-T

Samtec Inc.In Stock: 887TSW-140-07-S-T Datasheet

Current PartRFQ

3-103817-8

TE Connectivity AMP ConnectorsIn Stock: 15253-103817-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-140-07-S-T is determined by strict alignment of the following critical parameters:

• Connector Type & Contact Configuration: Header with male pins
• Position Count & Row Configuration: 120 positions arranged in 3 rows
• Pitch Specifications: 0.100" (2.54mm) mating pitch and row spacing
• Mounting & Termination: Through-hole solder termination
• Contact Material & Finish: Phosphor bronze with gold-plated mating surface
• Electrical & Environmental Ratings: Operating temperature range and flammability compliance

The substitute part 3-103817-8 (TE Connectivity AMP Connectors AMPMODU Mod II series) meets these core substitution criteria, maintaining identical position count, pitch, mounting type, and contact configuration. Variations in secondary parameters such as contact post length, insulation height, and post finish are documented for engineering evaluation.

Parameter Comparison

Engineering Selection Recommendations

The TSW-140-07-S-T remains the primary specification for applications requiring RoHS3 compliance and the extended upper operating temperature of 125°C. This part is actively produced and maintains full compliance with modern environmental regulations.

The 3-103817-8 substitute provides functional equivalence for applications where RoHS3 compliance is not mandated and the operating temperature range of -65°C to 105°C is acceptable. The TE Connectivity part features a slightly longer contact post (0.120" versus 0.100") and increased insulation height (0.120" versus 0.100"), which may require PCB layout verification to ensure clearance compatibility. The contact post finish differs (tin-lead versus tin), and the insulation material is specified as thermoplastic rather than PBT.

Both parts share identical mating pitch, position count, row configuration, contact material, and gold-plated mating surface finish. Both maintain UL94 V-0 flammability rating and unlimited moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can the 3-103817-8 be used as a direct replacement for the TSW-140-07-S-T?

A: The 3-103817-8 provides functional substitution for applications where the operating temperature range of -65°C to 105°C is acceptable and RoHS3 compliance is not required. The increased contact post length (0.120" versus 0.100") and insulation height (0.120" versus 0.100") must be verified against PCB layout and mating connector specifications to ensure mechanical compatibility.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) RoHS compliance status (TSW-140-07-S-T is RoHS3 compliant; 3-103817-8 is non-compliant), (2) maximum operating temperature (125°C versus 105°C), (3) contact post length and insulation height (0.100" versus 0.120"), (4) contact post finish (tin versus tin-lead), and (5) insulation material specification (PBT versus thermoplastic).

Q: Are the mating pitch and position count identical?

A: Yes. Both parts feature 120 positions in a 3-row configuration with 0.100" (2.54mm) mating pitch and row spacing. Mating contact length is identical at 0.230" (5.84mm).

Q: What packaging formats are available?

A: The TSW-140-07-S-T is supplied in bulk packaging. The 3-103817-8 is supplied in tube packaging.

Q: Do both parts meet flammability requirements?

A: Yes. Both parts carry UL94 V-0 material flammability rating.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.