Which EMC (electromagnetic compatibility) devices are helpful for the design and modification of digital subtraction angiography (DSA) machines?

EMC remediation of DSA equipment requires systematic planning. For the main power supply AC 380V/220V input, it is recommended to use a 14D561K or 20D241K varistor in conjunction with a gas discharge tube (e.g., 2R600L) for three-level surge protection. The power cable of the C-arm multi-axis servo drive is a strong radiation source; a ferrite core or a high-current common-mode choke must be used at the cable port. The high-speed low-voltage differential signal (LVDS) of the image acquisition card is extremely sensitive to noise; placing a CML4532A-510T common-mode chip inductor on the differential line at the receiving end can significantly improve the signal-to-noise ratio. All touchscreens and button interfaces on the control panel should use protective devices such as ESD5V0D8B to prevent system lock-up caused by static electricity introduced by personnel.