TMS-120-02-T-D Equivalent & Substitute Parts

Part Overview

The TMS-120-02-T-D is a 0.050" (1.27mm) pitch micro header connector manufactured by Samtec Inc., designed for board-to-board applications requiring through-hole solder termination. This 40-position, 2-row unshrouded header operates across -55°C to 105°C and is rated for 5A per contact. The component is currently active in production with 1065 units in stock and maintains ROHS3 compliance with UL94 V-0 flammability rating.

Identifying equivalent and substitute parts is necessary when addressing supply chain constraints, inventory availability, or specific application requirements that may benefit from alternative connector designs while maintaining functional compatibility.

Substiute Parts

TMS-120-02-T-D

Samtec Inc.In Stock: 1105TMS-120-02-T-D Datasheet

Current PartRFQ

1-103916-1

TE Connectivity AMP ConnectorsIn Stock: 9051-103916-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMS-120-02-T-D is determined by strict alignment of the following critical parameters:

• Pitch - Mating: 0.050" (1.27mm) — exact match required for PCB footprint compatibility
• Number of Positions: 40 — exact match required for signal routing
• Number of Rows: 2 — exact match required for mechanical fit
• Row Spacing - Mating: 0.100" (2.54mm) — exact match required for board layout
• Connector Type: Header — exact match required for application topology
• Contact Type: Male Pin — exact match required for mating interface
• Mounting Type: Through Hole — exact match required for assembly process
• Termination: Solder — exact match required for assembly compatibility

The substitute part 1-103916-1 (TE Connectivity AMP Connectors) meets all critical substitution criteria. Both connectors share identical mating pitch, position count, row configuration, and through-hole solder termination, enabling direct functional replacement in board-to-board applications.

Parameter Comparison

Engineering Selection Recommendations

The TMS-120-02-T-D remains the primary selection for applications requiring ROHS3 compliance and tin contact finish specifications. The part is active in production with adequate inventory availability (1065 units in stock).

The 1-103916-1 substitute provides functional compatibility for board-to-board applications with identical mating geometry and through-hole solder termination. However, this part is RoHS non-compliant and carries REACH Affected status, making it unsuitable for regulated markets or applications with RoHS compliance mandates. The gold mating contact finish and tin-lead post finish differ from the primary part, and the thermoplastic insulation material differs from the LCP specification of the TMS-120-02-T-D.

Selection between these parts must account for regulatory compliance requirements, contact finish specifications, and insulation material compatibility with the target application environment.

Frequently Asked Questions (FAQ)

Q: Can the 1-103916-1 be used as a direct replacement for the TMS-120-02-T-D?

A: The 1-103916-1 provides mechanical and electrical compatibility for board-to-board applications due to matching mating pitch (0.050"), position count (40), row configuration (2 rows), and through-hole solder termination. However, regulatory compliance differences and material variations must be evaluated for your specific application.

Q: What are the key differences between these connectors?

A: The primary differences are: (1) RoHS compliance status — TMS-120-02-T-D is ROHS3 compliant while 1-103916-1 is non-compliant; (2) contact finish — TMS-120-02-T-D uses tin while 1-103916-1 uses gold on mating surfaces; (3) insulation material — TMS-120-02-T-D uses LCP while 1-103916-1 uses thermoplastic; (4) operating temperature range — TMS-120-02-T-D operates -55°C to 105°C while 1-103916-1 operates -65°C to 105°C.

Q: Are the PCB footprints identical?

A: Yes. Both connectors share identical mating pitch (0.050"), position count (40), row spacing (0.100"), and through-hole mounting configuration, ensuring PCB footprint compatibility.

Q: Which part should I select for a regulated application?

A: The TMS-120-02-T-D is the appropriate selection for applications requiring RoHS compliance. The 1-103916-1 is RoHS non-compliant and carries REACH Affected status, restricting its use in regulated markets.

Q: What is the difference in contact finish specifications?

A: The TMS-120-02-T-D features tin contact finish on both mating and post surfaces. The 1-103916-1 features gold on mating surfaces (30.0µin thickness) and tin-lead on post surfaces (150.0µin thickness). Contact finish selection affects corrosion resistance, signal integrity, and solderability characteristics.