RSM30DRMN-S288 Sullins 60 Position Card Edge Connector

ElecSuppliers Part Number GuideAug 22, 2026

RSM30DRMN-S288 is a Sullins Connector Solutions card edge connector designed for board-to-board and card-extender applications. It features 60 positions arranged in two rows, a 0.156-inch pitch and a female contact configuration.

The connector uses a board-edge, straddle-mount design and is intended to mate with a compatible card edge. Its relatively large 3.96 mm contact pitch provides a mechanically robust connection for applications where a compact high-density connector is not the primary requirement.

RSM30DRMN-S288 Key Specifications

RSM30DRMN-S288 provides 60 total positions arranged as two rows of 30 contacts. The contact pitch is 0.156 inch, equivalent to approximately 3.96 mm.

The connector uses a female configuration with loop-bellows contacts. The contacts are made from phosphor bronze and feature gold plating.

The connector is designed for cards approximately 0.062 inch, or 1.57 mm, thick. It uses wire-wrap termination and can be mounted at the board edge using a straddle-mount configuration.

The specified operating temperature range is approximately -65°C to +125°C.

60 Position Card Edge Connector

Card edge connectors provide an electrical interface between a PCB and another board, card or test assembly.

RSM30DRMN-S288 has 60 contacts, allowing multiple power and signal connections to be routed through a single connector. The dual-row configuration provides a practical balance between contact count and physical size.

The connector can be particularly useful when a removable PCB or card needs to connect to a host board while retaining the ability to disconnect the card for testing, maintenance or replacement.

Sullins RSM30 Series

The RSM30 family includes card edge connector configurations with different termination and contact options.

RSM30DRMN-S288 is identified by its specific suffix, which defines the exact connector configuration. This is important when selecting a replacement because visually similar Sullins connectors can have different contact finishes, mounting arrangements or termination styles.

Using the complete manufacturer part number helps prevent an incorrect connector from being selected during procurement or PCB redesign.

Wire-Wrap Termination

RSM30DRMN-S288 uses wire-wrap termination rather than conventional solder terminals.

Wire-wrap connections have traditionally been used in prototyping, test equipment, instrumentation and other applications where wiring flexibility is important.

This termination method can also be useful for card-extender assemblies and development equipment where the connector needs to interface with individual wires rather than being permanently soldered into a conventional PCB circuit.

For automated production PCB assemblies, engineers should verify that the selected termination style matches the manufacturing process.

Gold-Plated Contacts

The contacts of RSM30DRMN-S288 use gold plating over phosphor bronze contact material.

Gold contact surfaces are commonly used in connectors where stable electrical contact and resistance to surface oxidation are important.

The contact finish is particularly relevant for connectors that may be mated and unmated repeatedly. The exact mating-cycle capability, however, depends on the complete connector specification and operating conditions.

Keeping the mating surfaces clean and using the correct mating connector can help maintain reliable electrical performance over the service life of the equipment.

RSM30DRMN-S288 Card Extender Applications

One of the listed features of RSM30DRMN-S288 is its card-extender application.

A card extender allows engineers or technicians to connect a PCB or electronic card to its normal interface while physically moving the card away from the main board.

This can be useful during troubleshooting and laboratory testing because engineers can access components and test points while the PCB remains electrically connected to the system.

The 60-position configuration provides sufficient contacts for many signal and power connections without requiring multiple separate connectors.

RSM30DRMN-S288 Operating Temperature

The connector is specified for an operating temperature range of approximately -65°C to +125°C.

This relatively wide temperature range allows the component to be considered for industrial, instrumentation and other applications where equipment may encounter significant temperature changes.

Connector performance can also be influenced by mechanical conditions, vibration and repeated mating. Therefore, temperature rating should be considered together with the mechanical requirements of the final application.

PCB and Mechanical Considerations

RSM30DRMN-S288 uses a board-edge, straddle-mount configuration.

During PCB design, engineers need to account for the connector's physical dimensions, contact pitch and card thickness. The mating PCB should be designed according to the manufacturer's recommended edge-contact dimensions.

The specified card thickness is approximately 1.57 mm. Using a card with significantly different thickness can affect the mechanical engagement and electrical reliability of the connection.

Adequate mechanical support is also important because card edge connectors can experience considerable insertion and removal forces.

RSM30DRMN-S288 Replacement Considerations

When replacing RSM30DRMN-S288, engineers should verify the number of positions, number of rows, contact pitch and connector gender.

The 60-position dual-row configuration should be matched carefully. A connector with the same number of contacts but a different pitch may not be mechanically compatible.

Termination style is another important consideration. A wire-wrap connector cannot necessarily replace a solder-terminal or surface-mount version without changes to the assembly.

Contact material, plating, card thickness and mounting configuration should also be checked when selecting an alternative.

RSM30DRMN-S288 Applications

RSM30DRMN-S288 can be considered for test equipment, instrumentation, industrial electronics, development systems, card-extender assemblies and other equipment requiring a removable card-edge connection.

Its 60-position configuration provides a relatively large number of contacts, while the 0.156-inch pitch gives the connector a robust mechanical structure.

The wide operating temperature range also makes the connector suitable for applications where standard commercial connectors may not provide sufficient environmental margin.

RSM30DRMN-S288 for PCB Interconnection

RSM30DRMN-S288 combines 60 positions, dual-row construction, a 0.156-inch pitch, gold-plated phosphor bronze contacts and wire-wrap termination.

Its card-extender capability makes it especially useful in development and test environments where engineers need access to a PCB while maintaining an electrical connection to the host system.

For new designs, the mating card dimensions, edge-contact layout, mounting method and required mechanical durability should be evaluated together. For replacement projects, matching the complete RSM30DRMN-S288 configuration is important because connector compatibility depends on both electrical and mechanical characteristics.