New Series of Expandable PCB Retainers from Elma Unveiled at electronica

At electronica this week, Elma Electronic is showcasing the first in its family of SureLock multi-segment, extruded aluminum retaining devices. The new 325 Series securely holds in place printed circuit boards (PCBs) mounted directly to the board and slid into a channel in the cold plate.

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A simple turn of a screw enables SureLock to expand and securely hold the card assembly in place, eliminating tooling costs in most implementations. This provides a uniform retention force across SureLock’s entire length to continually protect cards subject to extreme shock and vibration typically found in rugged and harsh computing environments.

The superior, lightweight design facilitates conduction cooling by transferring heat from a circuit card to a cold plate or to an enclosure’s extruded side walls, and makes the 325 Series highly useful in compact, mobile applications as well.

The first of several models and styles, the 325 Series features a 0.250″ X 0.260″ nominal cross-section, with a guaranteed minimum expansion to 0.325″. The new series is available in custom lengths from 2.15″ to 12.99″. Other options include hex drive style, mounting holes and types, length and finishes as well as a visual indicator, a locking element or a captive feature, if required.

“This new family of retainers gives our customers a cost-effective, flexible board holding system tailored to their rugged applications, without tooling costs in most cases,” noted Walter Podbelski, Elma’s director of business development. “And, the multiple size and configuration options will accommodate most rugged enclosures.”

All Elma SureLocks are designed to conform to the DLA standard DSCC-DWG-89024 and are DFARS specialty metal compliant in their native state.

Typical SureLock Applications

  • In-flight aerospace electronics (commercial and military)
  • Mobile communication systems and networks
  • Railway electronic systems (positive train controls)
  • Electronic monitoring, control and guidance equipment
  • Conduction cooled small form factor systems
  • Police and fire networks
  • Satellite and space electronic systems

Pricing for the new SureLock 325 Series starts at $18 in low volumes. Delivery is stock to three weeks ARO.

Contact Information

Elma Electronic Inc.

44350 S. Grimmer Blvd.
Fremont, CA, 94538
United States

tele: 510-565-3400
fax: 510-656-3783

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