TML-112-03-G-D Equivalent & Substitute Parts Reference

Part Overview

The TML-112-03-G-D is a shrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 24-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 maintains Active product status with 794 units in current inventory. Substitute parts are identified to address application requirements including alternative shrouding configurations, contact geometries, and termination specifications while maintaining core electrical and mechanical compatibility.

Substiute Parts

TML-112-03-G-D

Samtec Inc.In Stock: 816TML-112-03-G-D Datasheet

Current PartRFQ

1-104068-1

TE Connectivity AMP ConnectorsIn Stock: 12301-104068-1 Datasheet

SimilarRFQ

6-104068-1

TE Connectivity AMP ConnectorsIn Stock: 30776-104068-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TML-112-03-G-D is determined by strict alignment with the following core parameters:

Primary Matching Criteria (Non-Negotiable):

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 24
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder

Secondary Compatibility Parameters:

• Contact Finish - Mating: Gold (electrical interface standard)
• Insulation Material: Thermoplastic or LCP (both acceptable for board-level applications)
• Operating Temperature Range: Minimum -55°C, Maximum 125°C (substitute must meet or exceed these bounds)

Acceptable Variations:

• Shrouding configuration (4-wall vs. 2-wall): Both provide mechanical protection; 2-wall shrouding reduces overall profile
• Contact shape (square vs. circular): Both geometries accommodate standard 0.050" pitch mating
• Contact length specifications: Variations within 0.050" tolerance acceptable for through-hole assembly
• Fastening type (push-pull vs. latch holder): Both provide secure mating retention
• Contact finish thickness: Variations in plating thickness do not affect electrical performance at specified voltage/current ratings

The substitute parts 1-104068-1 and 6-104068-1 (TE Connectivity AMP Connectors, AMPMODU System 50 series) satisfy all primary matching criteria and operate within acceptable secondary parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

TML-112-03-G-D (Primary Part):

• Select when 4-wall shrouding is required for maximum mechanical protection and EMI shielding
• Preferred for applications requiring extended high-temperature operation up to 125°C
• ROHS3 compliance confirmed; suitable for regulated markets
• Square contact geometry provides consistent contact pressure distribution
• Push-pull fastening mechanism enables rapid mating/unmating cycles

1-104068-1 (TE Connectivity Substitute):

• Select when 2-wall shrouding profile is acceptable and space constraints exist
• Latch holder fastening provides positive retention without manual push-pull action
• Operating temperature range -65°C to 105°C covers most industrial applications below 105°C threshold
• UL94 V-0 flammability rating provides enhanced fire safety certification
• Circular contact geometry standard for AMPMODU System 50 series compatibility
• RoHS status not applicable; verify regulatory requirements for specific application

6-104068-1 (TE Connectivity Substitute - Preferred Alternative):

• Select as primary substitute when ROHS3 compliance is required
• Identical electrical and mechanical specifications to 1-104068-1
• Highest inventory availability (3000 units) ensures supply chain continuity
• Tin contact finish on posts provides standard solderability
• ROHS3 compliance aligns with TML-112-03-G-D regulatory status
• Recommended for new designs requiring regulatory compliance documentation

Temperature Consideration: The TML-112-03-G-D operates to 125°C maximum; TE Connectivity substitutes operate to 105°C maximum. Applications requiring sustained operation above 105°C must retain the TML-112-03-G-D.

Frequently Asked Questions (FAQ)

Q: Can 1-104068-1 and 6-104068-1 be used interchangeably with TML-112-03-G-D?

A: Yes, for applications operating below 105°C. Both TE Connectivity parts match the critical parameters: 0.050" pitch, 24 positions, 2-row configuration, 0.100" row spacing, through-hole solder termination, and gold-plated mating contacts. The primary differences are shrouding style (2-wall vs. 4-wall), fastening mechanism (latch holder vs. push-pull), and maximum operating temperature (105°C vs. 125°C).

Q: What is the difference between 1-104068-1 and 6-104068-1?

A: Both parts are electrically and mechanically identical. The primary difference is RoHS compliance status: 6-104068-1 is ROHS3 compliant, while 1-104068-1 is not applicable. For new designs requiring regulatory compliance documentation, 6-104068-1 is the preferred selection. Inventory availability also differs: 6-104068-1 has 3000 units in stock versus 1120 units for 1-104068-1.

Q: Does the shrouding difference (4-wall vs. 2-wall) affect electrical performance?

A: No. Both 4-wall and 2-wall shrouding configurations provide adequate mechanical protection and contact guidance. The 4-wall design (TML-112-03-G-D) offers additional EMI shielding and mechanical robustness, while the 2-wall design (TE Connectivity parts) reduces overall connector profile. Electrical performance remains equivalent.

Q: Are the contact geometries (square vs. circular) compatible?

A: Yes. Both square (TML-112-03-G-D) and circular (TE Connectivity parts) contact geometries accommodate standard 0.050" pitch mating receptacles. Contact shape does not affect electrical compatibility or mating force characteristics within the specified pitch tolerance.

Q: What is the impact of the operating temperature difference (-55°C to 125°C vs. -65°C to 105°C)?

A: The TML-112-03-G-D supports higher maximum temperature (125°C vs. 105°C). Applications requiring sustained operation above 105°C must use the TML-112-03-G-D. For applications operating within -55°C to 105°C, both parts are equivalent. The TE Connectivity parts offer lower minimum temperature (-65°C vs. -55°C), providing advantage in extreme cold environments.

Q: Does the contact finish thickness variation affect reliability?

A: No. The TML-112-03-G-D has 10.0µin (0.25µm) gold plating on mating contacts, while TE Connectivity parts have 30.0µin (0.76µm). Both thicknesses exceed minimum requirements for gold-plated contact durability and corrosion resistance. Thicker plating (TE Connectivity) provides extended contact life in high-cycle mating applications.

Q: What packaging considerations apply to these substitutes?

A: TML-112-03-G-D is supplied in Bulk packaging, while both TE Connectivity substitutes are supplied in Tube packaging. Tube packaging provides better component protection during storage and handling. Verify packaging requirements for your assembly process and inventory management system.

Q: Are there voltage or current rating differences?

A: The TML-112-03-G-D does not specify voltage or current ratings in the provided data. TE Connectivity parts specify 30VAC rating. For applications requiring specific voltage or current specifications, consult detailed datasheets or contact manufacturers directly.

Q: Which substitute should be selected for new product designs?

A: For new designs requiring ROHS3 compliance and maximum inventory availability, select 6-104068-1. For applications requiring maximum operating temperature (125°C) or 4-wall shrouding, retain TML-112-03-G-D. For cost-optimized designs operating below 105°C without specific RoHS requirements, either TE Connectivity part is acceptable.