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

Part Overview

The TML-105-03-G-D is a shrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 10-position connector operates across a wide temperature range of -55°C to 125°C and features gold-plated phosphor bronze contacts with 0.050" (1.27mm) pitch spacing. The part is currently in active production status with 949 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design alternatives when the primary part becomes unavailable or when application requirements permit functional alternatives.

Substiute Parts

TML-105-03-G-D

Samtec Inc.In Stock: 1007TML-105-03-G-D Datasheet

Current PartRFQ

5-104068-2

TE Connectivity AMP ConnectorsIn Stock: 24535-104068-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectangular connector headers is determined by strict alignment of electrical and mechanical parameters. The TML-105-03-G-D can be substituted with equivalent parts when the following criteria are met:

Critical Matching Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (10)
• Number of rows (2)
• Pitch - mating (0.050" / 1.27mm)
• Row spacing - mating (0.100" / 2.54mm)
• Mounting type (Through Hole)
• Termination method (Solder)
• Style (Board to Board or Board to Board/Cable)

Allowable Variations: Substitute parts may differ in shrouding configuration (4-wall vs. 2-wall), contact finish specifications, insulation material composition, fastening mechanism, and operating temperature range, provided the core electrical and mechanical interfaces remain compatible with mating connectors designed for the TML-105-03-G-D series.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (TML-105-03-G-D): Select the TML-105-03-G-D when applications require the extended upper operating temperature limit of 125°C, the 4-wall shrouded configuration for enhanced EMI shielding, or when existing designs are qualified specifically for Samtec TML series connectors. This part is ROHS3 compliant and currently in active production with adequate inventory availability.

Substitute Part Selection (5-104068-2): The TE Connectivity 5-104068-2 serves as a functional substitute when procurement of the primary part is constrained, when applications operate within the -65°C to 105°C temperature range, or when design flexibility permits use of the AMPMODU System 50 series. This substitute is ROHS3 compliant, REACH unaffected, and carries MSL Level 1 moisture sensitivity rating. The 2-wall shrouding provides reduced physical profile compared to the 4-wall primary part. Higher gold plating thickness (30.0µin vs. 10.0µin) on mating contacts offers enhanced wear resistance in high-cycle mating applications.

Compliance Verification: Both parts meet ROHS3 compliance requirements and share identical ECCN and HTSUS classifications, supporting regulatory and trade documentation consistency.

Frequently Asked Questions (FAQ)

Q: Can the 5-104068-2 directly replace the TML-105-03-G-D in existing designs?

A: Direct mechanical and electrical substitution is supported for the 10-position, 0.050" pitch header interface. However, design verification is required for applications operating above 105°C, as the substitute part's maximum operating temperature is 105°C versus the primary part's 125°C. The 2-wall shrouding of the substitute differs from the 4-wall configuration of the primary part, which may affect EMI performance in sensitive applications.

Q: What are the key differences in contact geometry between these parts?

A: The TML-105-03-G-D features square-shaped contacts with 0.170" mating length, while the 5-104068-2 uses circular-shaped contacts with 0.125" mating length. Both maintain the same 0.050" pitch and 0.100" row spacing, ensuring compatible mating with standard 0.050" pitch receptacles. Contact shape and length variations do not affect electrical performance for standard signal applications.

Q: Are there packaging differences between the primary and substitute parts?

A: Yes. The TML-105-03-G-D is supplied in bulk packaging, while the 5-104068-2 is supplied in tube packaging. Bulk packaging typically supports higher-volume assembly operations, while tube packaging is suitable for lower-volume or kit-based applications.

Q: Which part should be selected for high-temperature applications?

A: The TML-105-03-G-D is required for applications requiring continuous operation at temperatures above 105°C, as it supports the full -55°C to 125°C range. The 5-104068-2 is limited to -65°C to 105°C and is not suitable for high-temperature applications exceeding 105°C.

Q: Does the difference in contact finish thickness affect reliability?

A: The 5-104068-2 provides 30.0µin (0.76µm) gold plating on mating contacts compared to 10.0µin (0.25µm) on the TML-105-03-G-D. Thicker gold plating extends contact life in high-cycle mating environments and provides enhanced corrosion resistance. For standard mating cycle applications, both finishes meet industry reliability standards.

Q: Are both parts suitable for automotive and medical applications?

A: The 5-104068-2 is explicitly rated for automotive, general purpose, medical, and telecommunications applications. The TML-105-03-G-D does not specify application categories in the provided data. Application suitability should be verified against specific design requirements and industry standards applicable to the end-use environment.

Q: What is the significance of the MSL Level 1 rating on the substitute part?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture control requirements. This classification simplifies storage and handling procedures compared to higher MSL ratings and reduces risk of moisture-induced failures during assembly.