Wirewound resistors from TT Electronics offer surge energy ratings up to 7W

摘要

With surge energy ratings rang-ing from 2 to 7W, the WHS series of flame-proof, wirewound resistors from TT Electronics is suitable for use in power supplies that require a line-input resistor for inrush limiting and protection. The WHS resistors feature a winding design in which a high-purity ceramic substrate is assem-bled with interference fit end-caps welded to the terminations. The resistive element is then wound on the substrate and welded to the caps. The design enables the resistors to withstand the high surges associated with switch-on, discharge, and external surge events.