TML-105-03-G-D-RA Equivalent & Substitute Parts

Part Overview

The TML-105-03-G-D-RA is a shrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board applications. This 10-position connector operates across a wide temperature range of -55°C to 125°C and features a 0.050" (1.27mm) pitch with 0.100" (2.54mm) row spacing. The part is currently in active production status with 634 units in stock. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and evaluate alternative sourcing options when the primary part becomes unavailable or when design requirements permit functional alternatives.

Substiute Parts

TML-105-03-G-D-RA

Samtec Inc.In Stock: 677TML-105-03-G-D-RA Datasheet

Current PartRFQ

5-104069-4

TE Connectivity AMP ConnectorsIn Stock: 18725-104069-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TML-105-03-G-D-RA is determined by strict alignment of the following critical parameters:

Primary Matching Criteria:

• Connector Type: Header
• Contact Type: Male Pin
• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 10
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Style: Board to Board

The substitute part 5-104069-4 (TE Connectivity AMP Connectors) satisfies all primary matching criteria. Both parts are shrouded rectangular connector headers with identical mating pitch, position count, row configuration, and mounting orientation. Both feature solder termination and are designed for board-to-board applications. The parts are functionally interchangeable at the mechanical and electrical interface level based on these core parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (TML-105-03-G-D-RA): Select the TML-105-03-G-D-RA when the design requires the specific mechanical and thermal characteristics of the Samtec TML series, including the 4-wall shrouded design, square contact geometry, phosphor bronze contact material, and LCP insulation. This part is ROHS3 compliant and operates across the extended temperature range of -55°C to 125°C. The push-pull fastening mechanism and gold-plated post termination are design-specific requirements.

Substitute Part Selection (5-104069-4): The 5-104069-4 from TE Connectivity serves as a functional substitute when board-to-board connector applications require a 10-position, 0.050" pitch header with right-angle through-hole mounting and solder termination. This part is RoHS compliant and operates within -65°C to 105°C. The substitute features a 2-wall shrouded design, circular contact geometry, and latch holder fastening. The higher gold plating thickness (30.0µin versus 10.0µin) on mating contacts and specified 30VAC voltage rating provide additional electrical performance characteristics.

Substitution Constraints: The differences in shrouding design (4-wall versus 2-wall), contact geometry (square versus circular), fastening mechanism (push-pull versus latch holder), and operating temperature ranges must be evaluated against specific application requirements. The substitute part's lower maximum operating temperature (105°C versus 125°C) and different insulation material (thermoplastic versus LCP) may impact suitability in high-temperature or demanding thermal environments. PCB layout and mating connector compatibility must be verified before substitution, as contact length and insulation height differences affect mechanical fit.

Frequently Asked Questions (FAQ)

Q: Can 5-104069-4 be used as a direct replacement for TML-105-03-G-D-RA in all applications?

A: Both parts share identical mating pitch (0.050"), position count (10), row spacing (0.100"), and mounting orientation (through-hole right-angle). However, differences in shrouding design, contact geometry, fastening mechanism, and operating temperature range require application-specific evaluation. PCB layout compatibility and mating connector specifications must be verified before substitution.

Q: What are the key mechanical differences between these parts?

A: The TML-105-03-G-D-RA features 4-wall shrouding, square contacts, and push-pull fastening with an insulation height of 0.370". The 5-104069-4 features 2-wall shrouding, circular contacts, and latch holder fastening with an insulation height of 0.290". Contact length differences (mating: 0.170" versus 0.125"; post: 0.120" versus 0.100") affect mechanical engagement depth.

Q: Are there temperature range limitations when substituting?

A: The TML-105-03-G-D-RA operates from -55°C to 125°C, while the 5-104069-4 operates from -65°C to 105°C. Applications requiring operation above 105°C must use the primary part. The substitute part supports lower minimum temperatures (-65°C versus -55°C).

Q: What is the difference in contact finish specifications?

A: The TML-105-03-G-D-RA has gold-plated mating contacts (10.0µin thickness) and gold-plated posts. The 5-104069-4 has gold-plated mating contacts (30.0µin thickness) and tin-plated posts. The thicker gold plating on the substitute may provide enhanced corrosion resistance on mating surfaces.

Q: How do the shrouding designs differ?

A: The TML-105-03-G-D-RA uses 4-wall shrouding, providing full perimeter protection. The 5-104069-4 uses 2-wall shrouding, providing reduced perimeter protection. This affects EMI shielding characteristics and mechanical robustness.

Q: Are both parts RoHS compliant?

A: Yes. The TML-105-03-G-D-RA is ROHS3 compliant. The 5-104069-4 is RoHS compliant. Both parts meet RoHS requirements for hazardous substance restrictions.

Q: What fastening mechanism differences exist?

A: The TML-105-03-G-D-RA uses push-pull fastening for quick-disconnect capability. The 5-104069-4 uses latch holder fastening. These different mechanisms affect mating and unmating procedures and require compatible mating connectors.

Q: Can the substitute part support the same voltage and current ratings?

A: The 5-104069-4 specifies a 30VAC voltage rating. The TML-105-03-G-D-RA does not specify voltage or current ratings in the provided data. Current and voltage handling capabilities must be verified against application requirements and mating connector specifications.

Q: What is the inventory status for each part?

A: The TML-105-03-G-D-RA has 634 units in stock. The 5-104069-4 has 1821 units in stock, providing higher availability for substitute sourcing.