Panjit 1smb3ez series 3w smd silicon zener diodes smbdo 214aa panjit 1smb3ez27 a 18v 3w silicon zener diode with a glass passivated junction the diode comes in a surface mounting smbdo 214aa package suitable for a wide range of applications panjit 1smb3ez27 zener diode 27v 3w 5 do 214aa