TML-110-03-G-D-SM-LC Equivalent & Substitute Parts

Part Overview

The TML-110-03-G-D-SM-LC is a shrouded rectangular connector header manufactured by Samtec Inc., designed for surface mount board-to-board applications. This 20-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 1077 units in stock and maintains ROHS3 compliance. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design alternatives when the primary part becomes unavailable or when specific application requirements necessitate alternative connector specifications.

Substiute Parts

TML-110-03-G-D-SM-LC

Samtec Inc.In Stock: 1138TML-110-03-G-D-SM-LC Datasheet

Current PartRFQ

5-104549-2

TE Connectivity AMP ConnectorsIn Stock: 30645-104549-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TML-110-03-G-D-SM-LC is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 20
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Style: Board to Board or Board to Board/Cable

The substitute part 5-104549-2 (TE Connectivity AMP Connectors) satisfies all mandatory matching parameters. Both parts feature identical mating pitch, position count, row configuration, and surface mount solder termination with 4-wall shrouding. Both maintain active product status and ROHS3 compliance, confirming functional and regulatory equivalence for board-to-board interconnect applications.

Parameter Comparison

Engineering Selection Recommendations

The TML-110-03-G-D-SM-LC and 5-104549-2 are functionally equivalent for board-to-board surface mount applications requiring 20-position, 0.050" pitch shrouded headers with solder termination. Both parts maintain active product status and ROHS3 compliance, confirming ongoing manufacturing support and regulatory alignment.

Selection Criteria Based on Provided Specifications:

Choose TML-110-03-G-D-SM-LC when:

• Operating temperature range of -55°C to 125°C is required
• Push-Pull fastening mechanism is specified in the design
• Liquid Crystal Polymer (LCP) insulation material is required
• Phosphor Bronze contact material is required
• Square contact geometry is required
• Tube packaging format is preferred
• Mating contact length of 0.170" (4.32mm) is required
• Insulation height of 0.380" (9.65mm) is required

Choose 5-104549-2 when:

• Operating temperature range of -65°C to 105°C is acceptable
• Latch Holder fastening mechanism is acceptable
• Polyphthalamide (PPA) insulation material is acceptable
• Copper Alloy contact material is acceptable
• Circular contact geometry is acceptable
• Bulk packaging format is acceptable
• Mating contact length of 0.125" (3.18mm) is acceptable
• Insulation height of 0.435" (11.05mm) is acceptable
• Higher stock availability (2987 units) is advantageous
• Thicker gold plating (30.0µin vs. 10.0µin) is beneficial
• Board-to-cable configuration flexibility is required
• UL94 V-0 flammability rating is required

Both parts are suitable for general purpose, automotive, medical, and telecommunications applications where the specified electrical and mechanical parameters align with design requirements.

Frequently Asked Questions (FAQ)

Q: Can 5-104549-2 be used as a direct replacement for TML-110-03-G-D-SM-LC?

A: Both parts share identical mating pitch (0.050"), position count (20), row configuration (2 rows at 0.100" spacing), mounting type (surface mount), shrouding (4-wall), and termination method (solder). However, differences exist in contact length, insulation height, contact geometry, fastening mechanism, and operating temperature range. Substitution is valid only when the design accommodates these dimensional and mechanical variations.

Q: What are the key dimensional differences between these parts?

A: The TML-110-03-G-D-SM-LC has a mating contact length of 0.170" (4.32mm) and insulation height of 0.380" (9.65mm). The 5-104549-2 has a mating contact length of 0.125" (3.18mm) and insulation height of 0.435" (11.05mm). These differences may affect PCB layout, stacking height, and mating depth. Verify compatibility with your specific board design and mating connector specifications.

Q: How do the fastening mechanisms differ?

A: The TML-110-03-G-D-SM-LC uses a Push-Pull fastening type, while the 5-104549-2 uses a Latch Holder mechanism. These represent different mating and unmating procedures. Confirm that your mating connector or application supports the fastening type of your selected part.

Q: What is the temperature operating range difference?

A: The TML-110-03-G-D-SM-LC operates from -55°C to 125°C, while the 5-104549-2 operates from -65°C to 105°C. The TML extends to higher maximum temperature; the 5-104549-2 extends to lower minimum temperature. Select based on your application's thermal requirements.

Q: Are both parts RoHS compliant?

A: Yes, both TML-110-03-G-D-SM-LC and 5-104549-2 are ROHS3 compliant, confirming regulatory alignment for restricted substance requirements.

Q: What packaging formats are available?

A: The TML-110-03-G-D-SM-LC is supplied in Tube packaging (1077 units in stock). The 5-104549-2 is supplied in Bulk packaging (2987 units in stock). Select based on your procurement and handling requirements.

Q: Do these parts support cable applications?

A: The TML-110-03-G-D-SM-LC is specified for Board to Board style. The 5-104549-2 supports Board to Board or Cable style, providing additional application flexibility.

Q: What contact material differences exist?

A: The TML-110-03-G-D-SM-LC uses Phosphor Bronze contacts, while the 5-104549-2 uses Copper Alloy contacts. Both are gold-plated; the 5-104549-2 has thicker gold plating (30.0µin vs. 10.0µin). Verify material compatibility with your application requirements.

Q: What insulation material differences exist?

A: The TML-110-03-G-D-SM-LC uses Liquid Crystal Polymer (LCP), while the 5-104549-2 uses Polyphthalamide (PPA). The 5-104549-2 specifies UL94 V-0 flammability rating. Confirm material requirements for your application environment.

Q: How do contact geometries differ?

A: The TML-110-03-G-D-SM-LC features square contacts, while the 5-104549-2 features circular contacts. Contact geometry may affect mating force, insertion characteristics, and compatibility with specific mating connectors. Verify with your mating connector specifications.