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Sentrality Pin and Socket Interconnects

Molex’s Sentrality Pin and Socket Interconnect System offers high-voltage, high-current board-to-board, busbar-to-board and busbar-to-busbar connectors and provides a +/- 1.00mm radial self-alignment to overcome tolerance stack-up issues.

Product Highlights


 Current:  Pin Size: Circuits:
Up to 350.0A3.40, 6.00, 8.00 and 11.00mmSingle

Features and Benefits


Low Contact Resistance

Sentrality Interconnects offer low contact resistance and low voltage drop so there is minimal heat generation at the contact interface, which results in higher current-carrying capacity compared to other contact designs.

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Self-Alignment

Incorporate Molex’s proprietary OmniGlide technology to provide +/- 1.00mm radial self-alignment between the pin and socket during mating.

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Customization for Pins and Sockets at No Cost

Application-specific sockets can be created by relocating the socket flange anywhere along the length of the housing body, as well as application-specific pin lengths with no additional development costs.

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Design Flexibility

Sentrality pins and sockets are offered in a wide variety of board-attach options, suitable for either printed circuit boards or busbars, to provide design and manufacturing flexibility.

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Compact conical socket design:
Allows for tighter board-to-board stack heights with shorter socket assemblies than most market equivalents using hyperbolic sockets

Surface-mount sockets with pick-and-place caps are packed in tape-and-reel arrangements:
Allow for manufacturing flexibility with high-speed automated placement

Pin length can be set:
Allows for easy customization in achieving the optimum application- specific desired board-to-board or busbar-to-board stack height

Surface-mount pins with pick-and-place caps placed in trays:
Allow for manufacturing flexibility with high-speed automated placement

Socket assembly’s flange can be positioned anywhere along the side of the part:
Allows for easy customization in achieving the optimum application- specific protrusion above and/or below the substrates

The screw-mount pins attach to both printed circuit boards and busbars; the surface-mount pins attach to printed circuit boards; the knurled press-fit pins attach to busbars:
Offer design flexibility for attaching pins to various substrates

Knurled press-fit and eye-of-needle sockets and
Knurled press-fit pins and screw-mount pins packed in trays:

Allow for manufacturing flexibility with manual placement options

The eye-of-needle sockets and the surface- mount sockets attach to printed circuit boards; the knurled press-fit sockets attach to busbars:
Offer design flexibility for attaching sockets to different substrates

Top-entry socket assemblies and bottom-entry socket assemblies:
Offer design flexibility, allowing designers to stack substrates top-of-board to top-of-board configurations or top-of-board to bottom-of-board configurations, based on application-specific requirements

Overview


Power efficiency is critical to cost and safety management in power- intensive applications, such as power transmission systems in data centers, base stations, battery management, inverters, etc. Sentrality High-Current Pin and Socket Interconnects incorporate Molex’s proven COEUR sockets, which have multiple contact beams to create a large contact surface at the contact interface, resulting in very low contact resistance. The voltage drop across the contact interface is therefore very low, which leads to minimal heat generation.

It is challenging to align sockets and pins when mating parallel PCBs or busbars, due to tolerance stack-up issues inherent in any mechanical design. A degree of self-alignment is valuable to gather the connectors during mating and mitigate any misalignment. Sentrality High-Current Pin and Socket Interconnects, incorporating Molex’s proprietary OmniGlide technology, provide up to 1.00mm of radial self-alignment (industry leading). This minimizes potential damage to the connectors and specifically the socket’s contact beams during mating.

Dense electronic packaging demands low stack heights between mated substrates and the ability to easily customize connector profiles to optimize connector protrusions above the top substrate and below the bottom substrate. Sentrality High-Current Pin and Socket Interconnects are only 10.00mm tall, regardless of pin size. The position of the socket flange (that rests on the PCB) can be easily customized for customer applications to optimize protrusion beyond the top or bottom of the substrates.

Applications by Industry


Battery Storage Systems​
Gateway Storage Systems​

AC-to-DC rectifiers
Battery charging stations
DC-to-AC inverters
Robotics

Data storage units
Enterprise switches
Environmental control equipment
PDUs (Power Distribution Unit)
Power shelves
Servers
Uninterruptable power supplies

Data storage units
Digital cross-connect switches
Network routers
PDUs (Power Distribution Unit)
Servers
Uninterruptable power supplies (UPSs)

This is not a definitive list of applications for this product. It represents some of the more common uses.

Frequently Asked Questions


My design has unique space constraints that limit the height that the socket assembly can protrude above (or below) the printed circuit board (or busbar). Do I need to fund tooling for a custom socket assembly?
No, customer funding is not required. The socket assembly housing is machined, so Molex can position the flange anywhere along the length of the housing body to meet your requirements. Contact your local Molex sales representative for details.

My design has a unique board-to-board, busbar-to-board or busbar-to-busbar stack height requirement. Do I need to fund tooling for a custom length pin?
No, customer funding is not required. The pin is machined, so Molex can manufacture a pin of whatever length your application requires. Contact your local Molex sales representative for details.

I am interested in purchasing a busbar assembly with Sentrality connectors already attached to it, rather than individual Sentrality pins and sockets. Is Molex able to provide integrated busbar solutions?
Yes. Molex has a business segment that designs and fabricates busbars. This business segment also designs and manufactures fully integrated busbar solutions. Contact your local Molex sales representative for details.

What is the minimum board-to-board stack height that can be achieved using a Sentrality pin and a Sentrality surface-mount or knurled press-fit socket assembly?
The minimum achievable board-to-board stack height is determined by the Sentrality pin you select for your design.
- The minimum stack height when mating a Sentrality knurled press-fit pin and a surface-mount or knurled press-fit socket is 1.50mm.
- The minimum stack height when mating a Sentrality surface-mount pin and a surface-mount or knurled press-fit socket is 1.75mm.
- The minimum stack height when mating a Sentrality screw-mount pin and a surface-mount or knurled press-fit socket is 4.50mm.

Resources