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Power connectors meet VRM 1U/2U server needs

Posted: 13 Sep 2004 ?? ?Print Version ?Bookmark and Share

Keywords:tyco electronics? elcon? mini crown edge? power connector?

Tyco Electronics has expanded its ELCON Mini CROWN EDGE line of low profile, high-current power connectors for pluggable voltage regulator modules (VRMs) used in 1U and 2U server applications.

This product is now available in several form factors for different application specifications. These include the VRM 10.2 configuration that features 12 individual power contacts, and 18 signal contacts, in a form factor that is less than 4 inches in length. Another available configuration offers 18 power contacts plus 20 signal contacts, which can deliver up to 225A input and return.

In contrast with VRM connectors currently available in the market that use low current signal contacts, Mini CROWN EDGE connectors use ELCON high-performance CROWN BAND power contacts to deliver high power density, said the company, making them suitable for VRM 10.2 applications and beyond with requirements of up to 150A input and return. Individual power contacts are rated at 25A each (30C temperature rise in still air).

These low-profile power contacts have a short path length, which results in lower loop inductance levels, thus meeting the high slew rate requirements of recent VRM-to-MPU power delivery architectures.

Termination-to-the-board options include surface mount, two lengths of through-hole PC tails, and compliant press-fit pins. The surface mount version comes with a board hold-down feature that facilitates the soldering process. Two latches hold the VRM to the connector and are robust enough to accommodate 1U and 2U VRMs, as verified by rigorous shock and vibration testing. In addition, the connector's low profile design allows more room for placement of components on the VRM board.

Tyco Electronics plans to introduce a right angle and a straddle-mount version of the VRM 10.2 layout by fourth quarter 2004. These new configurations allow for further improvement of airflow in the system, said the company.

Pricing varies depending on volumes and contact configuration. The VRM 10.2 configuration starts at less than $2 in high volume quantities. Delivery is four to six weeks.

- Gina Roos

eeProductCenter





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