TMM-103-04-G-S Equivalent & Substitute Parts

Part Overview

The TMM-103-04-G-S is a 2MM terminal strip connector header manufactured by Samtec Inc. This through-hole rectangular connector features 3 positions with 0.079" (2.00mm) pitch and is designed for board-to-board or cable applications. The part is currently active in production with 973 units in stock. Alternative components may be required due to inventory constraints, application-specific requirements, or design revisions.

Substiute Parts

TMM-103-04-G-S

Samtec Inc.In Stock: 1069TMM-103-04-G-S Datasheet

Current PartRFQ

M22-2510305

Harwin Inc.In Stock: 20892M22-2510305 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The M22-2510305 manufactured by Harwin Inc. is identified as a manufacturer-recommended substitute for the TMM-103-04-G-S. Substitution eligibility is determined by the following critical parameters:

Matching Parameters:

• Connector Type: Header (with cuttable feature in substitute)
• Contact Type: Male Pin
• Pitch - Mating: 0.079" (2.00mm)
• Number of Positions: 3
• Number of Rows: 1
• Mounting Type: Through Hole
• Termination: Solder
• Contact Material: Phosphor Bronze
• Contact Finish - Mating: Gold
• Insulation Color: Black
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Differing Parameters:

• Insulation Material: Polyamide (PA6T), Nylon 6T vs. Liquid Crystal Polymer (LCP)
• Operating Temperature: -40°C ~ 105°C vs. -55°C ~ 125°C
• Current Rating: 1A per Contact vs. 3.2A per Contact
• Contact Length - Mating: 0.138" (4.60mm) vs. 0.075" (1.90mm)
• Overall Contact Length: 0.287" (7.30mm) vs. 0.224" (5.69mm)
• Material Flammability Rating: UL94 V-0 vs. not specified

Parameter Comparison

Engineering Selection Recommendations

Both the TMM-103-04-G-S and M22-2510305 are active products with ROHS3 compliance and MSL 1 ratings, making them suitable for production applications. Selection between these parts must account for the following documented differences:

The TMM-103-04-G-S supports higher current capacity (3.2A per contact) and operates across a wider temperature range (-55°C to 125°C). The M22-2510305 operates within a narrower temperature window (-40°C to 105°C) and carries a lower current rating (1A per contact). The M22-2510305 features a cuttable design and longer mating contact length (0.138" vs. 0.075"), which may affect board layout and mechanical fit.

Applications requiring the full -55°C to 125°C operating range or current loads exceeding 1A per contact should retain the TMM-103-04-G-S. Applications within the -40°C to 105°C range with current requirements of 1A or less per contact may use the M22-2510305 as a substitute, provided mechanical clearances accommodate the longer contact geometry.

Frequently Asked Questions (FAQ)

Q: Can M22-2510305 be used in place of TMM-103-04-G-S in all applications?

A: No. The M22-2510305 has a reduced current rating (1A vs. 3.2A per contact) and narrower operating temperature range (-40°C to 105°C vs. -55°C to 125°C). Substitution is valid only when application requirements fall within these M22-2510305 specifications.

Q: What is the impact of the different contact lengths?

A: The M22-2510305 has a mating contact length of 0.138" compared to 0.075" for the TMM-103-04-G-S. This 0.063" difference affects the overall connector height and may require PCB layout adjustments. Verify mechanical clearances before substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both TMM-103-04-G-S and M22-2510305 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, suitable for standard manufacturing and storage conditions.

Q: What is the significance of the cuttable feature on the M22-2510305?

A: The M22-2510305 includes a cuttable design, allowing individual positions to be separated if required. The TMM-103-04-G-S does not have this feature. This may provide design flexibility in the substitute part but does not affect electrical compatibility when used as a complete 3-position assembly.

Q: How do the insulation materials differ?

A: The TMM-103-04-G-S uses Liquid Crystal Polymer (LCP), while the M22-2510305 uses Polyamide (PA6T), Nylon 6T. Both materials are suitable for standard applications, but LCP offers superior thermal stability and dimensional consistency at elevated temperatures.