TML-125-01-S-D Equivalent & Substitute Parts

Part Overview

The TML-125-01-S-D is a shrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 50-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 1001 units in stock. Alternative equivalent parts may be required due to supply chain considerations, packaging preferences, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

TML-125-01-S-D

Samtec Inc.In Stock: 1012TML-125-01-S-D Datasheet

Current PartRFQ

104068-5

TE Connectivity AMP ConnectorsIn Stock: 2210104068-5 Datasheet

SimilarRFQ

5-104068-5

TE Connectivity AMP ConnectorsIn Stock: 16845-104068-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TML-125-01-S-D is determined by the following critical parameters that must match or be compatible:

Mandatory Matching Parameters:

• Number of Positions: 50
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder

Compatible Variation Parameters:

• Shrouding configuration (4-wall vs. 2-wall)
• Contact shape (square vs. circular)
• Fastening type (push-pull vs. latch holder)
• Insulation material (LCP vs. thermoplastic)
• Contact finish post composition (tin vs. tin-lead)

The substitute parts 104068-5 and 5-104068-5 (TE Connectivity AMP Connectors, AMPMODU System 50 series) satisfy all mandatory matching parameters and are therefore electrically and mechanically compatible with the TML-125-01-S-D for board-to-board interconnection applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 5-104068-5

The 5-104068-5 is the preferred equivalent substitute for the TML-125-01-S-D. Both parts are ROHS3 compliant, ensuring regulatory alignment for restricted substance requirements. The 5-104068-5 maintains all critical electrical and mechanical parameters: 50 positions, 0.050" pitch, 0.100" row spacing, through-hole solder termination, and gold-plated mating contacts. The part is active in production with 1604 units in stock. The contact finish post is tin, matching the TML-125-01-S-D specification. Operating temperature range is -65°C to 105°C, which covers the lower end of the TML-125-01-S-D range (-55°C to 125°C) but remains suitable for most industrial applications.

Secondary Substitute: 104068-5

The 104068-5 is electrically and mechanically compatible but carries RoHS non-compliant status. This part is suitable only for applications where RoHS compliance is not required. The contact finish post is tin-lead with 150.0µin (3.81µm) thickness, differing from the TML-125-01-S-D specification. Inventory availability is higher at 2187 units.

Key Differences to Consider:

Both TE Connectivity substitutes feature 2-wall shrouding compared to the TML-125-01-S-D 4-wall shrouding, reducing EMI shielding. The fastening mechanism changes from push-pull to latch holder. Contact shape transitions from square to circular. Insulation material changes from LCP to thermoplastic. These variations do not affect electrical compatibility for standard board-to-board interconnection but may impact mechanical fit in space-constrained applications or those requiring specific shrouding performance.

Frequently Asked Questions (FAQ)

Q: Can the 5-104068-5 be used as a direct replacement for the TML-125-01-S-D?

A: Yes. The 5-104068-5 maintains all critical parameters: 50 positions, 0.050" (1.27mm) pitch, 0.100" (2.54mm) row spacing, through-hole solder termination, and male pin contacts. Both are ROHS3 compliant. The parts are electrically and mechanically compatible for board-to-board applications.

Q: What is the difference between 104068-5 and 5-104068-5?

A: Both are TE Connectivity AMPMODU System 50 headers with identical electrical and mechanical specifications. The primary difference is RoHS compliance status: 104068-5 is RoHS non-compliant, while 5-104068-5 is ROHS3 compliant. The contact finish post differs: 104068-5 uses tin-lead; 5-104068-5 uses tin.

Q: Why does the TML-125-01-S-D have a higher operating temperature maximum (125°C vs. 105°C)?

A: The TML-125-01-S-D uses Liquid Crystal Polymer (LCP) insulation, which supports higher temperature operation. The TE Connectivity substitutes use thermoplastic insulation with a lower maximum rating of 105°C. For applications requiring operation above 105°C, the TML-125-01-S-D is required.

Q: Does the change from 4-wall to 2-wall shrouding affect compatibility?

A: The shrouding configuration does not affect electrical compatibility. However, 4-wall shrouding provides greater EMI shielding and mechanical protection. Applications requiring enhanced shielding should retain the TML-125-01-S-D. Standard board-to-board interconnection applications tolerate 2-wall shrouding.

Q: What is the impact of the fastening type change from push-pull to latch holder?

A: Fastening type affects mating and unmating procedures but not electrical performance. Push-pull connectors (TML-125-01-S-D) engage and disengage with axial force. Latch holder connectors (TE Connectivity substitutes) use mechanical latches. Verify mechanical compatibility with the mating connector before substitution.

Q: Are the contact materials interchangeable?

A: The TML-125-01-S-D uses phosphor bronze contacts; the TE Connectivity substitutes use copper alloy. Both materials provide adequate electrical conductivity and contact reliability for standard applications. The gold plating thickness is identical (30.0µin / 0.76µm) on mating surfaces, ensuring equivalent contact performance.

Q: What packaging considerations apply to these parts?

A: The TML-125-01-S-D is supplied in bulk packaging. The 104068-5 and 5-104068-5 are supplied in tube packaging. Verify that tube packaging is compatible with assembly equipment and handling procedures before substitution.

Q: Is the 30VAC voltage rating of the TE Connectivity parts a limitation?

A: The TML-125-01-S-D does not specify a voltage rating. The TE Connectivity substitutes are rated for 30VAC. For applications exceeding 30VAC, verify that the TML-125-01-S-D meets voltage requirements or confirm that the TE Connectivity parts are suitable for the intended voltage level.