Based on ADI’s application note, there are three different EMC-compliant solutions. Each solution provides a different protection capability. The configuration in protection scheme 1 is CDSOT23-SM712. The configuration in protection scheme 2 is the combination of TISP4240M3BJR-S, TBU-CA065-200-WH and CDSOT23-SM712. Once the TBU^® device is used in the circuit, the transient voltage can be up to 4kV, Level 4. If the GDT is accompanied with the circuit, the transient voltage can be above 6kV, Level x. The configuration in protection scheme 3 is the combination of 2038-15-SM-RPLF, TBU-CA065-200-WH and CDSOT23-SM712.