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

Part Overview

The TML-120-01-G-D is a shrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 40-position connector operates at 0.050" (1.27mm) pitch with 2 rows spaced 0.100" (2.54mm) apart. The part features a 4-wall shrouded design with gold-plated phosphor bronze contacts and is currently in active production status with 687 units in stock. Equivalent and substitute parts are identified when design requirements change, inventory constraints occur, or alternative sourcing becomes necessary while maintaining electrical and mechanical compatibility.

Substiute Parts

TML-120-01-G-D

Samtec Inc.In Stock: 722TML-120-01-G-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

Substitution compatibility for the TML-120-01-G-D is determined by the following critical parameters:

Primary Compatibility Criteria:

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 40
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Style: Board to Board

The substitute parts 104068-4 and 5-104068-4 (TE Connectivity AMP Connectors, AMPMODU System 50 series) meet all primary compatibility criteria. Both parts maintain identical mating pitch, position count, row configuration, and mounting characteristics. Differences exist in shrouding design (2-wall versus 4-wall), contact shape (circular versus square), and contact finish specifications, which represent acceptable trade-offs in equivalent applications where mechanical envelope and contact geometry variations are tolerable.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: TML-120-01-G-D

The TML-120-01-G-D remains the preferred choice for applications requiring ROHS3 compliance, 4-wall shrouding, and extended upper operating temperature to 125°C. The part is in active production with established supply availability.

Secondary Selection: 5-104068-4

The 5-104068-4 is the recommended substitute when inventory availability or cost optimization is required. This part maintains RoHS compliance and offers significantly higher stock levels (64,420 units). The 2-wall shrouding design and thermoplastic insulation material are suitable for applications where the reduced shrouding profile and lower operating temperature ceiling (-65°C to 105°C) are acceptable. The circular contact geometry and tin post finish represent functional equivalents for standard board-to-board interconnect applications.

Tertiary Selection: 104068-4

The 104068-4 provides an alternative when tin-lead post finish is acceptable and RoHS compliance is not required. This part offers intermediate inventory availability (1,365 units) and identical mating characteristics to the 5-104068-4 variant.

Compliance Considerations:

• TML-120-01-G-D: ROHS3 Compliant, ECCN EAR99
• 5-104068-4: RoHS Compliant, ECCN EAR99
• 104068-4: Not RoHS applicable, ECCN EAR99

All three parts share identical HTSUS classification (8536.69.4040) and EAR99 export control status.

Frequently Asked Questions (FAQ)

Q: Can 104068-4 or 5-104068-4 be used as direct replacements for TML-120-01-G-D?

A: Yes, both TE Connectivity parts are functionally equivalent for board-to-board interconnect applications. All three connectors share identical mating pitch (0.050"), position count (40), row configuration (2 rows at 0.100" spacing), and through-hole solder termination. The primary differences are shrouding design (4-wall versus 2-wall), contact geometry (square versus circular), and operating temperature range. These differences are acceptable in most standard applications.

Q: What is the impact of the shrouding difference between 4-wall and 2-wall designs?

A: The 4-wall shrouding on TML-120-01-G-D provides enhanced EMI shielding and mechanical protection compared to the 2-wall design of the TE Connectivity parts. Applications requiring maximum EMI suppression or mechanical robustness should retain the TML-120-01-G-D. Applications with standard EMI requirements can use the 2-wall shrouded alternatives.

Q: Are there temperature rating implications when substituting?

A: Yes. The TML-120-01-G-D operates from -55°C to 125°C, while both TE Connectivity substitutes operate from -65°C to 105°C. Applications requiring operation above 105°C must use the TML-120-01-G-D. Applications within the -65°C to 105°C range can use either substitute.

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

A: Both parts are identical in electrical and mechanical specifications. The primary differences are RoHS compliance status (104068-4 is not RoHS applicable; 5-104068-4 is RoHS Compliant) and post finish material (104068-4 uses Tin-Lead; 5-104068-4 uses Tin). For new designs, 5-104068-4 is preferred due to RoHS compliance and higher inventory availability.

Q: How do contact material differences affect performance?

A: TML-120-01-G-D uses Phosphor Bronze contacts, while both TE Connectivity substitutes use Copper Alloy. Both materials provide adequate electrical conductivity and contact reliability for standard interconnect applications. The gold mating finish on all three parts ensures consistent contact resistance and corrosion resistance.

Q: What packaging considerations apply to these substitutes?

A: TML-120-01-G-D is supplied in Bulk packaging, while both TE Connectivity parts are supplied in Tube packaging. Tube packaging provides better protection during storage and handling. No functional differences exist; packaging selection depends on assembly process requirements and inventory management practices.

Q: Are all three parts suitable for automotive, medical, and telecommunications applications?

A: The TE Connectivity parts (104068-4 and 5-104068-4) explicitly list automotive, general purpose, medical, and telecommunications applications. The TML-120-01-G-D does not specify applications in the provided data. For applications requiring documented application suitability, the TE Connectivity parts provide explicit qualification.