RMM25DTBI

Edgeboard Connectors Overview

The RMM25DTBI is a dual-edge card connector manufactured by Sullins Connector Solutions. It features 50 positions arranged in two rows of 25 contacts each, with a 0.156-inch (3.96mm) pitch. The connector utilizes female ring bellows contacts made from phosphor bronze, finished with 30.0µin (0.76µm) gold plating. Designed for through-hole, right-angle mounting, it accommodates cards up to 0.062 inches thick. The housing is green PPS insulation, and the flange includes top-mount openings with 4-40 threaded inserts.

Edgeboard Connectors Feature Summary

• Dual-row configuration providing 50 total contact positions for high-density interconnect applications.
• Ring bellows contact type ensures reliable mating force and retention on edge cards.
• Right-angle through-hole termination facilitates PCB layout flexibility.
• Flanged design with threaded inserts allows secure mechanical attachment to chassis or backplanes.

Edgeboard Connectors Applications

• Industrial control systems requiring robust edge card connections
• Telecommunications equipment utilizing standard 0.156 inch pitch modules
• Test and measurement instrumentation boards
• Computer peripheral interface cards

Edgeboard Connectors Procurement Notes

Verify that the specific suffix matches the required flange threading specifications. Confirm the gold plating thickness requirement aligns with the 30.0µin specification documented for this part number. Ensure compatibility with the 0.062 inch card thickness limit. Check RoHS compliance status if restricted substances are mandated for the target assembly environment.

Edgeboard Connectors Selection Notes

Select this component when a dual-sided edge connector with a 0.156 inch pitch is required. The right-angle orientation suits space-constrained vertical board arrangements. The phosphor bronze material offers good spring properties for repeated insertions. Verify that the 4-40 thread size fits the existing mounting hardware constraints before finalizing the design.

Edgeboard Connectors Part Context

This part belongs to the RMM series of edge connectors from Sullins Connector Solutions. The series generally covers various pitch options and termination styles. The RMM variant specifically denotes the 0.156 inch pitch family. This model represents a standard industrial-grade solution for connecting double-sided printed circuit boards.

Edgeboard Connectors Replacement Considerations

• RMM25DTAI
• RMM25DTMH

Edgeboard Connectors FAQ

What is the contact material used in the RMM25DTBI?

The contacts are made from phosphor bronze to provide necessary elasticity and conductivity.

Does this connector support right-angle mounting?

Yes, the RMM25DTBI is designed for through-hole, right-angle installation on the PCB.