The RN series choke is comprised of two windings over a ferrite ring core offering current-compensated inductances. They come in a plastic housing with UL94-V0 flammability rating, fully potted with UL rated epoxy and with PCB pins suitable for through-hole assembly. The RN chokes mainly attenuate common-mode Radio Frequency Interference (RFI). However, the stray inductances also help attenuation of differential mode interference signals. In combination with suitable suppression capacitors, designers can achieve high performance RFI filtering for AC and DC applications.