LTMM-125-02-S-D-SM

Headers, Male Pins Overview

The LTMM-125-02-S-D-SM is a surface mount board-to-board header manufactured by Samtec Inc. It features 50 positions arranged in two rows with a 2.00mm (0.079 inch) pitch. The connector utilizes phosphor bronze contacts with 30.0µin (0.76µm) selective gold plating on the mating area and tin plating on the tail. Designed for high-temperature applications, it operates within a range of -55°C to 125°C. The housing is constructed from black liquid crystal polymer (LCP) rated UL 94 V-0. Key physical dimensions include an insulation height of 0.190 inches (4.83mm) and a mating contact length of 0.120 inches (3.05mm).

Headers, Male Pins Feature Summary

• Surface mount termination style designed for automated PCB assembly processes.
• High-temperature capability supported by LCP insulation material rated for -55°C to 125°C operation.
• Shrouded design with guide slots ensures precise alignment during board-to-board mating.
• Selective gold plating on contact areas provides reliable electrical conductivity and corrosion resistance.

Headers, Male Pins Applications

• High-density board-to-board interconnections in compact electronic assemblies.
• Applications requiring high-temperature stability and robust mechanical retention.
• Surface mount manufacturing environments utilizing standard pick-and-place equipment.

Headers, Male Pins Procurement Notes

Verify the specific ordering suffix against the official Samtec LTMM series configuration tool to ensure correct post height and termination style. Confirm that the selected variant matches the required insulation height and mating interface specifications for the target application. Cross-reference the component RoHS status and moisture sensitivity level requirements before finalizing procurement orders.

Headers, Male Pins Selection Notes

Select this component when a low-profile, surface-mount header with a 2.00mm pitch is required. Ensure the mating socket counterpart supports the specified 0.120-inch contact length. Consider the thermal rating and shrouded design if environmental protection and alignment precision are critical constraints for the assembly process.

Headers, Male Pins Part Context

This part belongs to the Flex Stack LTMM series, which offers various post heights and termination options. It serves as a male header receptacle within the broader Samtec interconnect portfolio. The LTMM series is engineered for space-constrained designs requiring reliable surface mount connections with high thermal endurance.

Headers, Male Pins Replacement Considerations

Direct substitutes must match the 50-position, 2-row, 2.00mm pitch SMT header specification. Verify compatibility with mating sockets featuring the same contact length and shrouded geometry. Alternative Samtec series may require adapter solutions or PCB layout modifications due to dimensional differences.