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Expanded Range of Schroff brand Calmark™ High Clamp Force, Small Profile Card Loks

SAN DIEGO, CA - Schroff announces its newly designed Calmark™ Series 263HC, 265HC, and 276HC High Clamp Force Card Lok retainers. The patent-pending High Clamp “HC” force design provides an average of three times the clamping force of similarly sized Card Loks.

SWaP, or reducing size and weight while effectively handling increasing power, continues to be a challenge for defense and aerospace designers and manufacturers. And, as systems continue to be integrated into rugged environments and face ever growing shock and vibration requirements, it is critical to have sufficient printed circuit board retention.

For board retention, engineers have faced a tradeoff between clamping force and the size of the Card Lok; historically greater clamp force has only been available with larger profile Card Loks. Larger Card Loks have traditionally required more space in the enclosure, were heavier and consumed valuable board space.

The High Clamp Force retainer addresses these challenges. Its small and light-weight design Card Loks provide industry-leading board retention that is ideal for defense, space and aerospace applications.

Conveniently, the 260HC, 263HC, 265HC, and 265HC have been designed to be a drop-in replacement for most applications currently using standard 260, 263, 265, or 267 Card Loks. They have the same profile, height, mounting location and options, and optional features such as a visual indicator and lock patch.