TMS-108-01-T-S-RA Equivalent & Substitute Parts

Part Overview

The TMS-108-01-T-S-RA is a rectangular connector header manufactured by Samtec Inc., designed for board-to-board applications. This through-hole, right-angle mounted connector features 8 positions at 0.050" (1.27mm) pitch with male pin contacts and push-pull fastening. The part is currently active in production with full inventory availability. Identifying equivalent and substitute parts is necessary for supply chain continuity, design flexibility, and procurement optimization when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

TMS-108-01-T-S-RA

Samtec Inc.In Stock: 1006TMS-108-01-T-S-RA Datasheet

Current PartRFQ

HTMS-108-01-T-S-RA

Samtec Inc.In Stock: 1095HTMS-108-01-T-S-RA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMS-108-01-T-S-RA is determined by strict alignment of the following critical parameters:

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 8
• Number of Rows: 1
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Material: Phosphor Bronze
• Insulation Material: Liquid Crystal Polymer (LCP)
• Operating Temperature Range: -55°C ~ 105°C
• Current Rating: 5A per Contact
• Material Flammability Rating: UL94 V-0
• RoHS Compliance: ROHS3 Compliant

The HTMS-108-01-T-S-RA qualifies as a direct substitute based on matching all critical electrical, mechanical, and environmental parameters. Minor variations in insulation height (0.098" vs 0.096") fall within acceptable tolerance ranges for board-to-board connector applications and do not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the TMS-108-01-T-S-RA and HTMS-108-01-T-S-RA are active production parts from Samtec Inc. with identical compliance certifications and electrical specifications. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• PCB layout constraints related to the minor insulation height variation (0.002" difference)
• Supplier preference and procurement agreements
• Cost considerations where applicable

Both parts meet ROHS3 compliance requirements and carry UL94 V-0 flammability ratings, making them suitable for equivalent use in board-to-board connector applications requiring 0.050" pitch, 8-position headers with push-pull fastening and 5A per contact current capacity.

Frequently Asked Questions (FAQ)

Q: Can HTMS-108-01-T-S-RA be used as a direct replacement for TMS-108-01-T-S-RA?

A: Yes. Both parts share identical electrical, mechanical, and environmental specifications. The 0.002" difference in insulation height (0.098" vs 0.096") is within acceptable tolerance for board-to-board connector applications and does not affect functional compatibility or mating performance.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical certifications: ROHS3 compliance, UL94 V-0 flammability rating, and Moisture Sensitivity Level 1 (Unlimited). Both are active production parts from the same manufacturer.

Q: What is the significance of the series designation change from TMS to HTMS?

A: The series designation reflects the product line classification within Samtec's connector portfolio. The HTMS series represents an alternative product line offering equivalent functionality to the TMS series for this connector configuration. The base product number (108) and connector specifications remain functionally identical.

Q: Are there any PCB layout considerations when substituting between these parts?

A: The minor insulation height variation (0.002") should be evaluated against specific PCB clearance requirements. In most applications, this variation is negligible. Verify PCB footprint compatibility and clearance margins for your specific design before implementation.

Q: What current and voltage specifications apply to both parts?

A: Both parts are rated for 5A per contact with identical operating temperature range of -55°C to 105°C. No voltage rating is specified in the product data for either part; verify voltage requirements against your application specifications.

Q: Are both parts available in the same packaging format?

A: Yes. Both TMS-108-01-T-S-RA and HTMS-108-01-T-S-RA are supplied in tube packaging with full position loading and identical contact configurations.