TML-120-03-G-D-RA Equivalent & Substitute Parts

Part Overview

The TML-120-03-G-D-RA is a shrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board applications. This 40-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 active in production with 777 pieces available in stock. Equivalent substitute parts are identified when they maintain critical electrical and mechanical compatibility parameters while offering alternative sourcing options or inventory availability.

Substiute Parts

TML-120-03-G-D-RA

Samtec Inc.In Stock: 874TML-120-03-G-D-RA Datasheet

Current PartRFQ

5-104069-6

TE Connectivity AMP ConnectorsIn Stock: 4003485-104069-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TML-120-03-G-D-RA is determined by strict alignment of the following critical parameters:

Primary Compatibility Criteria:

• Connector Type: Header
• Contact Type: Male Pin
• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 40
• 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 5-104069-6 (TE Connectivity AMP Connectors) satisfies all primary compatibility criteria. Both connectors share identical pitch, position count, row configuration, and mounting orientation, enabling direct functional substitution in board-to-board applications requiring 40-position right-angle headers with 1.27mm spacing.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (TML-120-03-G-D-RA): Select the TML-120-03-G-D-RA when the application requires the specific mechanical and thermal characteristics of this Samtec connector, including 4-wall shrouding, phosphor bronze contacts, and LCP insulation material rated to 125°C. This part is ROHS3 compliant and maintains active production status with current inventory availability.

Substitute Selection (5-104069-6): The 5-104069-6 from TE Connectivity serves as a functional substitute when board-to-board connectivity with 40-position, 1.27mm pitch headers is required and the application can accommodate the following differences: 2-wall shrouding instead of 4-wall, thermoplastic insulation instead of LCP, and a maximum operating temperature of 105°C instead of 125°C. This substitute is RoHS compliant and maintains active production status. The TE Connectivity part offers significantly higher inventory availability (400,305 pieces) compared to the Samtec part (777 pieces).

Both parts are classified under ECCN EAR99 and share the same HTSUS code (8536.69.4040), confirming regulatory alignment for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the 5-104069-6 be used as a direct replacement for the TML-120-03-G-D-RA in all applications?

A: The 5-104069-6 is functionally compatible for board-to-board applications requiring 40-position headers with 0.050" pitch and right-angle mounting. However, applications operating above 105°C or requiring 4-wall shrouding and LCP insulation must use the TML-120-03-G-D-RA. Verify your specific operating temperature range and mechanical constraints before substitution.

Q: What are the key differences between these two connectors?

A: The primary differences are: shrouding configuration (4-wall vs. 2-wall), insulation material (LCP vs. thermoplastic), contact length dimensions, contact shape (square vs. circular), and maximum operating temperature (125°C vs. 105°C). Both maintain identical pitch, position count, and row spacing.

Q: Are both parts RoHS compliant?

A: Yes. The TML-120-03-G-D-RA is ROHS3 compliant, and the 5-104069-6 is RoHS compliant. Both meet environmental compliance requirements for their respective standards.

Q: What is the significance of the different contact finish thicknesses?

A: The TML-120-03-G-D-RA has 10.0µin (0.25µm) gold plating on mating contacts, while the 5-104069-6 has 30.0µin (0.76µm). Thicker plating on the TE Connectivity part provides enhanced wear resistance and corrosion protection in high-cycle mating applications.

Q: Can the 5-104069-6 be used in applications requiring the full -55°C to 125°C temperature range?

A: No. The 5-104069-6 is rated only to -65°C to 105°C. For applications requiring operation above 105°C or below -65°C, the TML-120-03-G-D-RA must be used.

Q: What packaging format is available for both parts?

A: Both the TML-120-03-G-D-RA and 5-104069-6 are supplied in tube packaging.

Q: Are there any fastening type differences between these connectors?

A: Yes. The TML-120-03-G-D-RA uses push-pull fastening, while the 5-104069-6 uses a latch holder fastening mechanism. This difference may affect mating and unmating procedures in your application.