NFE31P Series From Murata, the NFE31PT series range consists of T-type circuit EMI suppression filters. These suppression filters feature a large rated current of 6A and low voltage drop due to small DC resistance. This ensures that NFE31PT EMI suppression filters are suitable for DC power line use. Constructed with incorporated ferrite beads, resonance with surrounding circuits is kept to a minimum. The feedthrough capacitors ensure high frequency characteristics for these EMI suppression filters.