DC-DC Converters feature EMC shielding and 2:1 input range.

Housed in 2 x 1 in. package, 50 W Series PQA50-D incorporates 6-sided metal shielding and

[source: http://news.thomasnet.com/fullstory/DC-DC-Converters-feature-EMC-shielding-and-2-1-input-range-20017433]