Featuring a lower profile and higher efficiency, the ZPSA series is TDK-Lambda's second generation of single output 20, 40, 60 and 100W power supplies. Output voltages are available for the most popular voltages of 3.3 to 48V. The ZPSA20 has a 2"" x 3.5"" footprint, the ZPSA40/60 a 2"" x 4"" and the ZPSA100 is in the popular 3"" x 5"" size.