Non-inductive winding with metallized polypropylene film,special metalspray, mylar tape, aluminum shell or stainless steel shell encapsulation, flame retardant epoxy potting, copper nuts or copper bolts terminal.Excellent high-frequency ripple absorption ability, high dv/dt, good frequency characteristic, low stray inductance.Widely used in high voltage inverter system for switch module (IGBT)protection,peak voltage clamp,etc.