TMS-108-02-T-S-RA Equivalent & Substitute Parts

Part Overview

The TMS-108-02-T-S-RA is a 0.050" (1.27mm) pitch micro header connector manufactured by Samtec Inc. This through-hole, right-angle rectangular connector features 8 positions in a single row configuration with male pin contacts and push-pull fastening. The connector is designed for board-to-board applications and is currently in active production status. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design compatibility across manufacturing batches and inventory sources.

Substiute Parts

TMS-108-02-T-S-RA

Samtec Inc.In Stock: 712TMS-108-02-T-S-RA Datasheet

Current PartRFQ

5-104186-5

TE Connectivity AMP ConnectorsIn Stock: 10245-104186-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMS-108-02-T-S-RA is determined by strict adherence to the following core parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 8
• Number of Rows: 1
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Push-Pull
• Shrouding: Unshrouded
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The substitute part 5-104186-5 (TE Connectivity AMP Connectors) meets all mandatory substitution criteria. Both connectors share identical pitch spacing, position count, row configuration, mounting orientation, and regulatory compliance status. The connectors are functionally interchangeable for board-to-board applications requiring 0.050" pitch male pin headers with through-hole right-angle mounting and solder termination.

Parameter Comparison

Engineering Selection Recommendations

Both the TMS-108-02-T-S-RA and 5-104186-5 are active production connectors with ROHS3 compliance and UL94 V-0 flammability ratings. Selection between these parts should be based on the specific application requirements and design constraints:

The TMS-108-02-T-S-RA offers a 5A per contact current rating and operates across -55°C to 105°C. The connector features square contact geometry with tin mating finish and phosphor bronze contact material.

The 5-104186-5 provides a wider operating temperature range (-65°C to 105°C) and specifies 30VAC voltage rating. This connector features circular contact geometry with gold mating finish and copper alloy contact material. The insulation height is 0.116" (2.95mm) compared to 0.098" (2.50mm) for the TMS-108-02-T-S-RA.

Both connectors maintain identical pitch spacing, position count, and mounting configuration, ensuring mechanical and electrical compatibility for board-to-board applications. The choice between these parts depends on application-specific requirements for current capacity, temperature range, contact finish, and insulation height.

Frequently Asked Questions (FAQ)

Q: Can the 5-104186-5 be used as a direct replacement for the TMS-108-02-T-S-RA?

A: Yes. Both connectors share the same 0.050" (1.27mm) pitch, 8-position single-row configuration, through-hole right-angle mounting, and push-pull fastening. They are functionally interchangeable for board-to-board applications. However, differences in contact geometry (square vs. circular), contact finish (tin vs. gold), and insulation height may require PCB layout verification.

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

A: The primary differences are contact shape (square vs. circular), contact finish (tin vs. gold), insulation material (LCP vs. thermoplastic), insulation height (0.098" vs. 0.116"), contact length specifications, and operating temperature range (-55°C to 105°C vs. -65°C to 105°C). The TMS-108-02-T-S-RA specifies 5A per contact current rating, while the 5-104186-5 specifies 30VAC voltage rating.

Q: Are both connectors RoHS compliant?

A: Yes. Both the TMS-108-02-T-S-RA and 5-104186-5 are ROHS3 compliant with UL94 V-0 flammability ratings and MSL 1 (Unlimited) moisture sensitivity levels.

Q: What is the difference in contact length between these connectors?

A: The TMS-108-02-T-S-RA has a mating contact length of 0.100" (2.54mm) and post length of 0.140" (4.66mm). The 5-104186-5 has a mating contact length of 0.125" (3.18mm) and post length of 0.100" (2.54mm). These differences may affect mating depth and PCB hole sizing.

Q: Which connector should I select for high-temperature applications?

A: The 5-104186-5 offers a wider operating temperature range of -65°C to 105°C compared to the TMS-108-02-T-S-RA range of -55°C to 105°C. For applications requiring extended low-temperature operation, the 5-104186-5 is the appropriate selection.

Q: Are there any packaging differences between these connectors?

A: Both connectors are supplied in tube packaging. Inventory availability may vary between manufacturers and distribution channels.