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Power connectors cut VRM footprint

Posted: 15 Jun 2006     Print Version  Bookmark and Share

Keywords:Gina Roos  Tyco Electronics  ELCON  CROWN EDGE  voltage regulator module 

Tyco Electronics has doubled the density of its standard ELCON Mini CROWN EDGE line of low-profile, high-current power connectors for pluggable 1U and 2U voltage regulator modules (VRM) applications. Offering a wide choice in signal contact spacing and connector length, the latest addition offers a 0.50-inch centreline.

While the standard Mini CROWN EDGE product features signal contacts on a 0.100-inch centreline, the tighter-fit configuration offers a higher density of signal contacts on a 0.050-inch centreline. This signal spacing allows for the same connector in a reduced size.

By using high-performance CROWN BAND power contacts to deliver a high-power-density form factor, Mini CROWN EDGE connectors are suitable for VRM 10.2 applications and beyond with requirements up to 150A. Individual power contacts are rated at 25A each (30°C temperature rise in still air).

The low-profile power contacts have a short path length that provides lower loop inductance levels, thus meeting the high slew rate requirements of recent VRM-to-MPU power delivery architectures. By taking advantage of the CROWN BAND contact, the product can achieve current levels of up to 150A, while using less than 4 inches of the circuit board real estate.

This connector is available in surface mount technology (SMT) and two lengths of through-hole PC tail connection. The traditional connector offers three options of board mounting including SMT, compliant press fit, and two lengths of through-hole PC tail connection. The SMT version of both connectors offers a board hold-down feature to facilitate the soldering process. Two latches hold the VRM to the connector and are robust enough to accommodate 1U and 2U VRMs, as verified by shock and vibration testing. Click the link for more information about the Mini CROWN EDGE product line.

Pricing is in the Rs.90.22 ($2) to Rs.135.33 ($3) range, depending on configuration, in volume. Standard VRM 10.2 connectors are from stock. Delivery for custom configurations is up to 12 weeks.

- Gina Roos

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