GBM28DSUS

Edgeboard Connectors Overview

The GBM28DSUS is a dual-edge card edge connector manufactured by Sullins Connector Solutions. It features 56 positions arranged in two rows of 28 contacts, with a 0.156-inch (3.96mm) pitch. The connector utilizes full bellows-type female contacts made from phosphor bronze, finished with 10.0µin (0.25µm) gold plating. Designed for through-hole solder termination, it accommodates a board thickness of 0.062 inches (1.57mm). The housing is constructed from black polyamide PA9T nylon and operates within a temperature range of -65°C to 125°C.

Edgeboard Connectors Feature Summary

• Full bellows contact design ensures reliable signal transmission and mechanical stability during mating cycles.
• Gold-plated phosphor bronze contacts provide corrosion resistance and low contact impedance.
• Side-mounting flange with unthreaded openings facilitates secure panel or chassis installation.

Edgeboard Connectors Applications

• Industrial control systems requiring robust card-to-board connections
• Telecommunications equipment utilizing standard double-sided edge cards
• Test and measurement instrumentation interfaces

Edgeboard Connectors Procurement Notes

Verify that the specific order matches the GBM28DSUS part number exactly, as suffixes denote critical variations in insulation material, contact finish, or mounting style. Confirm RoHS compliance status if required by project specifications. Ensure compatibility with the target PCB layout regarding hole spacing and mounting flange dimensions before procurement.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge female connector with a 0.156-inch pitch is required for non-specified card types. The choice depends on the need for through-hole soldering and side-mounting capabilities. Consider the operating temperature range and insulation material properties relative to the environmental conditions of the intended application.

Edgeboard Connectors Part Context

This component belongs to Sullins' GBM series of card edge connectors. The series offers various configurations for different board thicknesses and mounting requirements. The GBM28DSUS specifically addresses applications needing high-density interconnects with durable bellows contacts and standardized pitch dimensions for broad compatibility.

Edgeboard Connectors Replacement Considerations

Compatible substitutes include GCM28DRMI and HSM28DRKS from the same manufacturer, provided they match the required pitch, row count, and mounting style. Verify that alternative parts support the same board thickness and contact termination method to ensure mechanical and electrical interchangeability.