Found 4 alternatives for SMM4F12A-TR by STMicroelectronics. Tvs Diodes — DO-222AA.
TVS DIODE 5VWM 13.4VC DO222-AA
TVS DIODE 26VWM 53.5VC DO222-AA
TVS DIODE 10VWM 21.7VC DO222-AA
TVS DIODE 15VWM 32.5VC DO222-AA