TML-120-01-S-D Equivalent & Substitute Parts

Part Overview

The TML-120-01-S-D is a shrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 40-position connector operates across a wide temperature range of -55°C to 125°C and features 0.050" (1.27mm) pitch mating with 0.100" (2.54mm) row spacing. The part is currently active in production with 722 units in stock. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring compatible rectangular connector headers with matching electrical and mechanical specifications.

Substiute Parts

TML-120-01-S-D

Samtec Inc.In Stock: 766TML-120-01-S-D Datasheet

Current PartRFQ

104068-4

TE Connectivity AMP ConnectorsIn Stock: 1386104068-4 Datasheet

SimilarRFQ

5-104068-4

TE Connectivity AMP ConnectorsIn Stock: 644685-104068-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TML-120-01-S-D are qualified based on the following critical parameters that determine functional compatibility:

Primary Matching 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
• Termination: Solder
• Style: Board to Board or Board to Board/Cable
• Contact finish - mating: Gold

The substitute parts 104068-4 and 5-104068-4 (both TE Connectivity AMP Connectors) satisfy these primary matching criteria. Both are shrouded rectangular connector headers with identical pitch, position count, row configuration, and mating contact specifications. Variations in secondary parameters such as shrouding wall count (4 wall vs. 2 wall), contact shape (square vs. circular), fastening type (push-pull vs. latch holder), and insulation material (LCP vs. thermoplastic) are noted but do not preclude substitution when primary electrical and mechanical interfaces are identical.

Parameter Comparison

Engineering Selection Recommendations

TML-120-01-S-D (Samtec Inc.): This part is the primary reference component. It is active in production and ROHS3 compliant. The operating temperature range of -55°C to 125°C supports extended environmental applications. The 4-wall shrouding design provides enhanced mechanical protection and keying slot functionality. Phosphor bronze contact material with square contact geometry offers specific performance characteristics for this connector family.

104068-4 (TE Connectivity AMP Connectors): This substitute part is active in production with 1365 units in stock. It meets primary mating and mechanical interface requirements. The operating temperature range is -65°C to 105°C, which is narrower at the upper limit compared to the main part. RoHS status is listed as not applicable. The 2-wall shrouding and latch holder fastening type differ from the main part. This part is suitable for applications where the narrower temperature range and alternative shrouding design are acceptable.

5-104068-4 (TE Connectivity AMP Connectors): This substitute part is active in production with 64420 units in stock, providing superior availability. It is RoHS compliant and meets all primary mating and mechanical interface requirements. The operating temperature range is -65°C to 105°C. The contact finish post is tin (matching the main part specification more closely than 104068-4). The 2-wall shrouding and latch holder fastening type differ from the main part. This part is suitable for applications where the narrower temperature range and alternative shrouding design are acceptable, with the advantage of higher inventory availability.

Selection between these parts should be based on application-specific requirements for operating temperature range, shrouding design, fastening mechanism, and inventory availability.

Frequently Asked Questions (FAQ)

Q: What are the primary criteria for substituting the TML-120-01-S-D with 104068-4 or 5-104068-4?

A: The substitute parts match the main part on all critical mating and mechanical interface parameters: 0.050" (1.27mm) pitch, 40 positions, 2 rows, 0.100" (2.54mm) row spacing, through-hole mounting, solder termination, male pin contacts, and gold-plated mating surfaces. These parameters ensure physical and electrical compatibility at the connector interface.

Q: How do the shrouding designs differ, and does this affect substitution?

A: The TML-120-01-S-D features 4-wall shrouding, while both TE Connectivity substitutes feature 2-wall shrouding. The shrouding wall count affects mechanical protection and keying slot configuration but does not alter the core mating interface. Applications requiring specific shrouding geometry should verify compatibility with the 2-wall design.

Q: What is the significance of the operating temperature range differences?

A: The TML-120-01-S-D operates from -55°C to 125°C, while both TE Connectivity substitutes operate from -65°C to 105°C. The substitute parts have a lower maximum operating temperature (105°C vs. 125°C). Applications requiring operation above 105°C must use the main part. Applications operating within -65°C to 105°C can use either part.

Q: Are there differences in contact material and shape?

A: The TML-120-01-S-D uses phosphor bronze contacts with square geometry. The TE Connectivity substitutes use copper alloy contacts with circular geometry. Both materials and geometries are suitable for the 0.050" (1.27mm) pitch interface. Contact shape differences do not affect mating compatibility but may influence specific performance characteristics such as contact resistance or wear patterns.

Q: What is the difference between 104068-4 and 5-104068-4?

A: Both parts are from the TE Connectivity AMPMODU System 50 series with identical electrical and mechanical specifications. The primary differences are inventory availability (1365 units vs. 64420 units) and RoHS compliance status (not applicable vs. RoHS compliant). The contact finish post differs slightly: 104068-4 uses tin-lead while 5-104068-4 uses tin. For new designs, 5-104068-4 is preferred due to higher availability and RoHS compliance.

Q: Can these parts be used interchangeably in existing designs?

A: Physical and electrical interchangeability is supported at the connector mating interface due to matching pitch, position count, row spacing, and contact specifications. However, mechanical fit and fastening mechanism differences (push-pull vs. latch holder) must be evaluated for the specific application. PCB layout and mating connector design should be verified to ensure compatibility with the 2-wall shrouding and latch holder fastening of the substitute parts.

Q: What packaging formats are available?

A: The TML-120-01-S-D is supplied in bulk packaging. Both TE Connectivity substitutes are supplied in tube packaging. Packaging format may affect handling, storage, and assembly processes and should be considered in procurement planning.

Q: Are there compliance or certification differences?

A: The TML-120-01-S-D is ROHS3 compliant. The 104068-4 has RoHS status listed as not applicable. The 5-104068-4 is RoHS compliant. All three parts are classified as EAR99 and share the same HTSUS code (8536.69.4040). Applications subject to RoHS requirements should use either the main part or 5-104068-4.