TSW-109-18-S-D Equivalent & Substitute Parts

Part Overview

The TSW-109-18-S-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This vertical header connector features 18 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing. The connector is actively produced and maintains full inventory availability. Identifying equivalent and substitute parts is necessary to support design flexibility, ensure supply chain continuity, and accommodate specific application requirements such as insulation material preferences or alternative sourcing options.

Substiute Parts

TSW-109-18-S-D

Samtec Inc.In Stock: 852TSW-109-18-S-D Datasheet

Current PartRFQ

HTSW-109-18-S-D

Samtec Inc.In Stock: 970HTSW-109-18-S-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-109-18-S-D is determined by strict alignment of the following critical parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 18
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Termination: Solder
• Contact Finish - Mating: Gold
• Operating Temperature Range: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• RoHS Compliance: ROHS3 Compliant

The HTSW-109-18-S-D qualifies as a substitute part because it maintains all critical electrical and mechanical parameters. Variations in insulation material (LCP vs. PBT) and insulation color do not affect functional compatibility in standard board-to-board or cable connection applications.

Parameter Comparison

Engineering Selection Recommendations

Both the TSW-109-18-S-D and HTSW-109-18-S-D are active products manufactured by Samtec Inc. with full ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on:

• Insulation material requirements: PBT (TSW-109-18-S-D) or LCP (HTSW-109-18-S-D)
• Supply chain availability and lead time
• Inventory status: TSW-109-18-S-D (807 Pcs) or HTSW-109-18-S-D (875 Pcs)
• Application-specific thermal or mechanical stress conditions

Both parts maintain identical electrical and mechanical interface specifications, ensuring direct substitution capability in board-to-board and cable connection applications.

Frequently Asked Questions (FAQ)

Q: Can HTSW-109-18-S-D replace TSW-109-18-S-D in existing designs?

A: Yes. Both parts share identical pitch spacing (0.100"), position count (18), row configuration (2 rows), contact geometry, and operating temperature range (-55°C ~ 125°C). The difference in insulation material (LCP vs. PBT) does not affect mating compatibility or electrical performance in standard applications.

Q: What is the difference between PBT and LCP insulation materials?

A: PBT (Polybutylene Terephthalate) and LCP (Liquid Crystal Polymer) are both thermoplastic materials with UL94 V-0 flammability ratings. Material selection depends on specific application requirements such as thermal stability, dimensional precision, or chemical resistance. Both materials are suitable for the specified operating temperature range.

Q: Are both parts RoHS compliant?

A: Yes. Both TSW-109-18-S-D and HTSW-109-18-S-D are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the contact finish specification?

A: Both parts feature gold-plated mating contacts (30.0µin / 0.76µm thickness) with tin-plated posts for solder termination. This finish combination ensures reliable electrical contact and solderability.

Q: Can these connectors be used for board-to-board and cable applications?

A: Yes. Both parts are classified as Board to Board or Cable style connectors with through-hole mounting and solder termination, supporting flexible application deployment.