www.vishay.com P6SMB Series Vishay General Semico.
P6SMB540A - Transient Voltage Suppressors
P6SMB540A - TRANSIENT VOLTAGE SUPPRESSOR
P6SMB540A - Transient Voltage Suppressor Diode
P6SMB540A - TVS Diodes
P6SMB540A - Surface Mount Transient Voltage Suppressors