Which EMC (electromagnetic compatibility) devices are helpful for the design and modification of magnetic resonance imaging (MRI) machines?

The core of EMC design in MRI lies in controlling the strong electromagnetic interference generated by the gradient and radio frequency (RF) systems. A common-mode inductor with high saturation current connected in series on the gradient coil drive cable is crucial for suppressing radiated emissions. Shielding and filtering of the RF power amplifier are paramount; its DC power supply line can utilize a combination of PBZ series power inductors and SMCJ series TVS diodes to filter noise and suppress transients. Signal transmission inside and outside the scanning room must pass through waveguides or filter panels; the filter connectors on the panels can integrate CML series common-mode chip inductors. Various I/O ports of external devices such as control consoles and beds (e.g., USB, CAN) should be protected against electrostatic discharge (ESD) and transients using devices such as ESD5V0D8B to prevent interference from coupling into the control circuitry through cables.