TMS-140-02-S-D Equivalent & Substitute Parts

Part Overview

The TMS-140-02-S-D is a 0.050" (1.27mm) pitch micro header connector manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 80-position, 2-row unshrouded header features male pins with gold-plated mating contacts and tin-plated posts, rated for 5A per contact across an operating temperature range of -55°C to 125°C. The connector is ROHS3 compliant and carries an active product status. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring compatible rectangular connector headers with matching electrical and mechanical specifications.

Substiute Parts

TMS-140-02-S-D

Samtec Inc.In Stock: 1135TMS-140-02-S-D Datasheet

Current PartRFQ

1-103916-6

TE Connectivity AMP ConnectorsIn Stock: 10431-103916-6 Datasheet

SimilarRFQ

6-103916-6

TE Connectivity AMP ConnectorsIn Stock: 9386-103916-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TMS-140-02-S-D are qualified based on strict alignment with the following critical parameters:

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 80
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Push-Pull
• Shrouding: Unshrouded
• Contact Finish - Mating: Gold
• Insulation Height: 0.100" (2.54mm)
• Contact Shape: Square
• Material Flammability Rating: UL94 V-0

The substitute parts identified—1-103916-6 and 6-103916-6 from TE Connectivity AMP Connectors—meet these core electrical and mechanical requirements. Both are AMPMODU System 50 series headers with identical pitch, position count, row configuration, and contact geometry. Variations in contact length, insulation material composition, and compliance certifications are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Both TE Connectivity substitute parts maintain functional compatibility with the TMS-140-02-S-D across core electrical and mechanical parameters. Selection between alternatives should be based on compliance and regulatory requirements:

6-103916-6 (Recommended for RoHS3 applications): This part carries ROHS3 compliance matching the primary part specification. It features tin post plating and thermoplastic insulation material. Operating temperature range is -65°C to 105°C, which covers the lower end of the TMS-140-02-S-D range (-55°C to 125°C). This part is suitable for applications requiring RoHS3 certification.

1-103916-6 (Legacy or non-regulated applications): This part is RoHS non-compliant and features tin-lead post plating. It carries REACH Affected status. Operating temperature range is -65°C to 105°C. This part may be used in applications where RoHS compliance is not required.

TMS-140-02-S-D (Primary specification): Samtec's part offers the widest operating temperature range (-55°C to 125°C) and ROHS3 compliance. Phosphor bronze contact material and LCP insulation provide the specified performance envelope.

Contact length variations (mating and post) between the TMS-140-02-S-D and TE Connectivity alternatives are documented. Applications with tight mechanical clearance requirements should account for the 0.025" (0.64mm) difference in mating contact length and 0.020" (0.51mm) difference in post contact length.

Frequently Asked Questions (FAQ)

Q: Can 1-103916-6 and 6-103916-6 be used interchangeably with TMS-140-02-S-D?

A: Both TE Connectivity parts share identical pitch (0.050"), position count (80), row configuration (2 rows), and core contact geometry with the TMS-140-02-S-D. Mechanical and electrical substitution is supported. However, contact length differences and compliance certifications must be evaluated for specific applications.

Q: What is the primary difference between 1-103916-6 and 6-103916-6?

A: Both parts are identical in electrical and mechanical specifications. The key difference is RoHS compliance status: 6-103916-6 is ROHS3 compliant, while 1-103916-6 is RoHS non-compliant. Post plating differs slightly (tin-lead vs. tin), and REACH status differs (Vendor Undefined vs. REACH Affected).

Q: Are there operating temperature limitations when substituting?

A: The TMS-140-02-S-D operates from -55°C to 125°C. Both TE Connectivity alternatives operate from -65°C to 105°C. Applications requiring operation above 105°C must use the TMS-140-02-S-D. Applications operating below -55°C can use either substitute.

Q: How do contact length differences affect board design?

A: The TMS-140-02-S-D has a mating contact length of 0.100" (2.54mm) and post length of 0.120" (3.05mm). TE Connectivity parts have mating contact length of 0.125" (3.18mm) and post length of 0.100" (2.54mm). Overall contact length differs by 0.005" (0.13mm). PCB trace routing and mating connector depth must accommodate these variations.

Q: Which part should be selected for new designs?

A: For new designs requiring RoHS3 compliance, select 6-103916-6. For applications requiring the full -55°C to 125°C temperature range, the TMS-140-02-S-D is the primary specification. Both parts carry active product status and adequate inventory.

Q: Are there material differences that affect performance?

A: The TMS-140-02-S-D uses phosphor bronze contacts and LCP insulation. TE Connectivity parts use copper alloy contacts and thermoplastic insulation. Both material sets meet UL94 V-0 flammability requirements. Contact material and insulation composition may affect signal integrity in high-frequency applications; design validation is required for such applications.

Q: What is the current rating for these connectors?

A: The TMS-140-02-S-D is rated for 5A per contact. Current ratings are not specified for the TE Connectivity alternatives in the provided data. Applications requiring specific current ratings should reference manufacturer datasheets.