ACT631SMX-4 Overview
0044 (0)118 979 1238 0044 (0)118 979 1283 info@actcrystals. ACT631SMX-4 The ACT631SMX-4 is a 4 pad, high quality, low aging, metal seam, packaged crystal suitable for automatic placement on printed circuit boards. It utilises a ceramic base and metal lid for durability.