you get a pack of 5 BZW70/16 16v suppressor voltage clamping diode 

Pease note that the 16V rating of this diode is the safe continuous running voltage and that the actual voltage that it clamps to is higher. The data sheet says up to 29 volts maximum and when I tested some it was close to 22 volts ( see the datasheet picture above)


shelf ER10