Found 3 alternatives for SP3422-04UTG by Littelfuse Inc.. Tvs Diodes — 5-XFDFN.
TVS DIODE 5VWM 15VC SLP1308N5T
TVS DIODE 3.6VWM 15VC 5DFN
TVS DIODE 5.5VWM 15VC 5DFN