TMMH-123-01-L-Q

Headers, Male Pins Overview

The TMMH-123-01-L-Q is a low-profile header strip from the Samtec TMMH series, designed for board-to-board interconnections. It features a 2 mm (0.079 inch) pitch and consists of four rows with a total of 92 contacts. The connector utilizes through-hole mounting technology with male pin contact types. Constructed with phosphor bronze contacts and a black liquid crystal polymer (LCP) insulator, it supports a maximum operating temperature of 125°C and meets UL 94 V-0 flammability standards.

Headers, Male Pins Feature Summary

• Quad-row configuration providing high-density connectivity within a compact footprint.
• Low-profile design optimized for space-constrained electronic assemblies.
• Flexible shroud system enhances alignment and protection during mating.

Headers, Male Pins Applications

• High-density board-to-board interconnects
• Space-constrained industrial control modules
• Telecommunications equipment backplanes

Headers, Male Pins Procurement Notes

Verify that the specific part number matches the quad-row requirement, as standard TMMH variants often feature two rows. Confirm the suffix 'Q' correctly denotes the four-row configuration in the official datasheet. Ensure the through-hole termination style aligns with the target PCB manufacturing capabilities. Cross-reference the LCP insulator material specifications against environmental operating requirements.

Headers, Male Pins Selection Notes

Select this component when a four-row interface is necessary to minimize lateral board space usage. The 2 mm pitch offers a balance between signal density and mechanical robustness. Consider the flexible shroud feature if manual insertion or automated pick-and-place alignment precision is a primary concern. Verify that the phosphor bronze contact material meets the required conductivity and durability standards for the application lifecycle.

Headers, Male Pins Part Context

This component belongs to the TMMH family of low-profile header strips, which are characterized by their flexible shroud design and surface mount or through-hole availability. While many TMMH parts are dual-row, the 'Q' suffix specifically identifies the quad-row variant, distinguishing it from standard two-row models like the TMMH-123-01-L-DV. This series is engineered for applications requiring reliable electrical connections in dense packaging environments.

Headers, Male Pins Replacement Considerations

Direct substitutes must maintain the 2 mm pitch, 92-contact count, and four-row layout. Alternative Samtec models such as the TMMH-123-01-TM-Q may offer different termination styles but require verification of mechanical compatibility. Non-Samtec equivalents must match the LCP insulator material and UL 94 V-0 rating to ensure thermal and fire safety compliance.