TMS-105-21-S-D Equivalent & Substitute Parts

Part Overview

The TMS-105-21-S-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 10-position, 2-row micro header operates at 0.050" (1.27mm) pitch and supports 5A per contact. The part is currently active in production with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in compatible applications.

Substiute Parts

TMS-105-21-S-D

Samtec Inc.In Stock: 1144TMS-105-21-S-D Datasheet

Current PartRFQ

HTMS-105-21-S-D

Samtec Inc.In Stock: 1089HTMS-105-21-S-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TMS-105-21-S-D are identified based on strict equivalence of the following critical parameters:

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 10
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Current Rating: 5A per Contact
• Operating Temperature Range: -55°C ~ 125°C
• Contact Material: Phosphor Bronze
• Contact Finish - Mating: Gold
• Insulation Material: Liquid Crystal Polymer (LCP)
• RoHS Status: ROHS3 Compliant

The HTMS-105-21-S-D meets all these criteria and is classified as a direct substitute. Both parts share identical electrical and mechanical specifications, enabling interchangeability in applications requiring 0.050" pitch, 10-position, 2-row through-hole headers with gold-plated mating contacts.

Parameter Comparison

Engineering Selection Recommendations

The HTMS-105-21-S-D is a direct equivalent to the TMS-105-21-S-D. Both parts are manufactured by Samtec Inc., carry active product status, and maintain identical electrical and mechanical specifications across all defined parameters. Both parts are ROHS3 compliant and carry UL94 V-0 flammability certification. Selection between these parts is based on availability and supply chain requirements, as no technical differentiation exists between them.

Frequently Asked Questions (FAQ)

Q: Can the HTMS-105-21-S-D replace the TMS-105-21-S-D in existing designs?

A: Yes. The HTMS-105-21-S-D is a direct substitute with identical pitch (0.050"), position count (10), row configuration (2 rows), contact material (Phosphor Bronze), mating contact finish (Gold), and operating temperature range (-55°C ~ 125°C). No design modifications are required.

Q: Are there differences in contact plating between these parts?

A: No. Both parts feature gold-plated mating contacts at 30.0µin (0.76µm) thickness and tin-plated posts. Contact material is Phosphor Bronze for both.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TMS-105-21-S-D and HTMS-105-21-S-D are ROHS3 compliant, carry UL94 V-0 flammability rating, and share identical moisture sensitivity level (MSL 1 - Unlimited).

Q: What is the current-carrying capacity of these connectors?

A: Both parts are rated for 5A per contact, supporting the same electrical load requirements.

Q: Are these parts suitable for through-hole PCB assembly?

A: Yes. Both parts are designed for through-hole mounting with solder termination, compatible with standard PCB assembly processes.

Q: What is the pitch specification for these headers?

A: Both parts operate at 0.050" (1.27mm) mating pitch with 0.100" (2.54mm) row spacing, defining the contact center-to-center distances.