TMS-120-03-S-S-RA Equivalent & Substitute Parts

Part Overview

The TMS-120-03-S-S-RA is a 0.050" (1.27mm) pitch micro header connector manufactured by Samtec Inc. This through-hole, right-angle header features 20 positions in a single row configuration with unshrouded design and push-pull fastening. The connector is classified as Active product status and is suitable for board-to-board applications requiring solder termination. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component substitution within specified electrical and mechanical parameters.

Substiute Parts

TMS-120-03-S-S-RA

Samtec Inc.In Stock: 1077TMS-120-03-S-S-RA Datasheet

Current PartRFQ

6-104186-1

TE Connectivity AMP ConnectorsIn Stock: 34466-104186-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMS-120-03-S-S-RA with the 6-104186-1 (TE Connectivity AMP Connectors) is based on the following allowed parameters:

Both connectors share identical specifications for:

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 20
• Number of Rows: 1
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Type: Male Pin
• Contact Finish - Mating: Gold
• Contact Finish Thickness - Mating: 30.0µin (0.76µm)
• Insulation Color: Black
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8536.69.4040

Differences exist in Contact Length - Post, Insulation Height, Contact Shape, and Operating Temperature Range. These differences do not preclude substitution when the application requirements fall within the overlapping operational envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the TMS-120-03-S-S-RA and 6-104186-1 maintain Active product status and comply with UL94 V-0 flammability requirements and RoHS standards. The TMS-120-03-S-S-RA offers a wider operating temperature range (-55°C to 125°C) compared to the 6-104186-1 (-65°C to 105°C), making the Samtec connector suitable for applications requiring higher temperature operation. The TE Connectivity substitute provides equivalent mechanical and electrical compatibility for applications operating within the -65°C to 105°C envelope. Both connectors feature identical mating pitch, position count, and push-pull fastening, ensuring mechanical interchangeability in board-to-board configurations. Selection between these parts should be based on specific application temperature requirements and connector availability.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine substitution compatibility between TMS-120-03-S-S-RA and 6-104186-1?

A: The critical parameters are pitch (0.050" / 1.27mm), number of positions (20), number of rows (1), mounting type (through hole, right angle), termination method (solder), and fastening type (push-pull). Both connectors match these specifications exactly.

Q: Can the 6-104186-1 be used as a direct replacement in all applications?

A: The 6-104186-1 is mechanically and electrically compatible for applications operating within its specified temperature range of -65°C to 105°C. Applications requiring operation above 105°C should use the TMS-120-03-S-S-RA, which supports temperatures up to 125°C.

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

A: The TMS-120-03-S-S-RA has a contact post length of 0.140" (4.66mm), while the 6-104186-1 has a contact post length of 0.100" (2.54mm). This difference may affect PCB layout and solder joint depth considerations.

Q: Are both connectors RoHS compliant?

A: Yes. The TMS-120-03-S-S-RA is ROHS3 Compliant, and the 6-104186-1 is RoHS Compliant. Both meet regulatory requirements for hazardous substance restrictions.

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

A: Both connectors have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Do both connectors have the same contact finish specifications?

A: Both connectors feature gold-plated mating contacts with 30.0µin (0.76µm) thickness and tin-plated posts. Contact material differs: TMS-120-03-S-S-RA uses Phosphor Bronze, while 6-104186-1 uses Copper Alloy.