Found 5 alternatives for P0721CA2LRP by Littelfuse Inc.. Tvs Mixed Technology — DO-214AA, SMB (3 Leads), Compak.
SIDACTOR UNI 75V 50A DO214
BATTRAX SLIC DUAL NEG 500A DO214
SIDACTOR SLIC UNI 160V 50A DO214
BATTRAX SLIC SGL NEG 50A DO214
SIDAC SLIC UNI 120V 50A DO214