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SFP EMI cage supports copper, optical transceivers

Posted: 03 Apr 2006 ?? ?Print Version ?Bookmark and Share

Keywords:small form-factor pluggable? EMI cage? dataMate Products? Gina Roos?

SFP EMI cage

dataMate Products, a division of Methode Electronics Inc., expanded its SFP product line with a four-port SFP EMI cage that can be used with both copper and optical small form-factor pluggable (SFP) transceivers for Fibre Channel, Gigabit Ethernet and Infiniband applications.

The perimeter of the four-port SFP EMI cage is a one-piece construction of a stamped copper alloy. The walls between ports use the same copper alloy and are soldered to the perimeter and mechanically locked. This type of construction provides tighter port-to-port spacing than is specified in the SFP MSA, which is an important feature to maximize port density, according to the company.

Press-fit pins allow the cage to be securely mounted to a PCB without solder (although the cage is solderable). The four-port cage is available in two PCB footprint configurations including one compatible with belly-to-belly applications. It is also available with light pipes to display LED indicators from the host board to the chassis bezel. The cage is available in RoHS-compliant matte tin or gold-flash plating finishes.

Custom and value-added features are available. For example, heat sinks can be integrated with the cage assembly to help dissipate heat from the transceiver. Other SFP solutions include two- and three-port modules, SFP connectors, active and passive patch cord assemblies, copper transceivers and copper loopbacks.

The four-port SFP EMI cage (without light pipes) is priced at less than $4.25 at quantities of 10,000. Samples are available from stock.

- Gina Roos

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