TMMH-122-01-S-DV Equivalent & Substitute Parts

Part Overview

The TMMH-122-01-S-DV is a 2MM low profile rectangular connector header manufactured by Samtec Inc. This surface mount connector features 44 positions arranged in 2 rows with 0.079" (2.00mm) pitch, designed for board-to-board or cable applications. The part is currently active in production with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, supply chain alternatives, or specific application requirements.

Substiute Parts

TMMH-122-01-S-DV

Samtec Inc.In Stock: 741TMMH-122-01-S-DV Datasheet

Current PartRFQ

TMMH-122-01-S-DV-A-M

Samtec Inc.In Stock: 1010TMMH-122-01-S-DV-A-M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TMMH-122-01-S-DV are identified based on strict equivalence of the following critical parameters:

• Number of Positions: 44
• Number of Rows: 2
• Pitch - Mating: 0.079" (2.00mm)
• Row Spacing - Mating: 0.079" (2.00mm)
• Connector Type: Header, Cuttable
• Contact Type: Male Pin
• Mounting Type: Surface Mount
• Termination: Solder
• Contact Length - Mating: 0.126" (3.20mm)
• Insulation Height: 0.079" (2.00mm)
• Contact Shape: Square
• Contact Finish - Mating: Gold
• Contact Material: Phosphor Bronze
• Insulation Material: Liquid Crystal Polymer (LCP)
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• Product Status: Active
• RoHS Status: ROHS3 Compliant

The substitute part TMMH-122-01-S-DV-A-M maintains all critical electrical and mechanical parameters while incorporating additional features (Board Guide, Pick and Place capability) that do not alter the core connector functionality or mating interface.

Parameter Comparison

Engineering Selection Recommendations

Both TMMH-122-01-S-DV and TMMH-122-01-S-DV-A-M are active production parts with ROHS3 compliance and UL94 V-0 flammability certification. The parts are electrically and mechanically equivalent for all mating interface requirements. Selection between these parts should be based on:

• Availability: TMMH-122-01-S-DV-A-M has higher current inventory (953 Pcs vs. 650 Pcs)
• Manufacturing features: TMMH-122-01-S-DV-A-M includes board guide and pick-and-place features that may provide advantages in automated assembly processes
• Design requirements: If board guide or pick-and-place features are not required, either part is functionally equivalent

Both parts maintain identical electrical performance, thermal ratings, and environmental compliance across the specified operating temperature range of -55°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Are TMMH-122-01-S-DV and TMMH-122-01-S-DV-A-M mechanically interchangeable?

A: Yes. Both parts share identical mating pitch (0.079"), row spacing (0.079"), contact length (0.126"), and insulation height (0.079"). The mating interface is fully compatible. The TMMH-122-01-S-DV-A-M includes additional board guide and pick-and-place features that do not affect mechanical compatibility.

Q: What is the difference between these two part numbers?

A: The primary difference is the addition of board guide and pick-and-place features in the TMMH-122-01-S-DV-A-M variant. All electrical parameters, contact materials, finishes, and environmental ratings remain identical.

Q: Can I use TMMH-122-01-S-DV-A-M as a direct replacement for TMMH-122-01-S-DV?

A: Yes. The parts are electrically and mechanically equivalent. The additional features in TMMH-122-01-S-DV-A-M do not introduce incompatibility with existing designs using TMMH-122-01-S-DV.

Q: Are both parts RoHS compliant?

A: Yes. Both TMMH-122-01-S-DV and TMMH-122-01-S-DV-A-M are ROHS3 compliant with UL94 V-0 flammability certification.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across -55°C to 125°C, suitable for industrial and commercial applications.

Q: What contact finish is used for the mating surface?

A: Both parts use gold plating with 30.0µin (0.76µm) thickness on the mating contacts, with tin finish on the solder posts.