EJT EMI Filters TE Connectivity's (TE) EJT Electromagnetic Interference (EMI) Filters provide superior EMI filter performance up to 1GHz (extended flange version), compared to 30MHz performance for typical EMI filters. TE EJT Extended Flange EMI Filters feature an extended flange around the IEC320-C14 inlet to reduce the amount of radiated radio frequency (RF) through potential gaps around the installed filter. EJT EMI Filters are ideal for use in test equipment, medical diagnostics, and communication equipment.