PTVSHC3D4V5B Bi-directional 4.5V High Capacitance .
PTVSHC3D4V5BH - TVS Protect
PTVSHC3D4V5BL - TVS Protect
PTVSHC3D4V5B - High Capacitance TVS Protect
PTVSHC3D4V5B2 - High Capacitance TVS Protect