BXD series: DEK series of products, his heat sink is mainly aluminum profile, the whole shape is relatively small, the connection of the generator and rectifier bridge is based on the nut fixation; most of the products without excitation products, basically consists of six diodes, the connection is simple and there are only three groups; the size of its use of materials are divided into the material of the die-casting aluminum, aluminum alloy, aluminum, pure aluminum three materials, with a good heat dissipation performance, to maintain normal operation at high temperature environment to extend service life; DEK's advantages of three-layer stacked process to make full use of the back cover heat dissipation, so that the structure of this product is compact and lightweight. High-temperature environment to maintain normal operation to extend the service life; DEK's advantage of three-layer stacked process, make full use of the back cover heat dissipation, so that this product is compact and lightweight, the use of aluminum as a radiator, left and right symmetrical + fin design, good heat dissipation (not many high-power products).