Twenty Rows' 2012 Cabernet Sauvignon was harvested in mid-to-late October from appelations across Napa Valley including Mt. Veeder, Coombsville, and Oak Knoll. The Cabernet Sauvignon fruit also includes 4% Petite Verdot, 4% Cabernet Franc, and 2% Malbec.
Zener diode is a diode which is used in its break down region. The diode is kept reverse biased in a circuit, and so it does not allow current to pass until the voltage is greater than the breakdown voltage of the zener.
1 This type of diode is therefore widely used to provide a reference voltage in power supplies. 2  Two types of reverse breakdown are apparent in these diodes: Zener breakdown and Impact Ionisation. 3  However the name Zener diode is used for the reference diodes regardless of the form of breakdown that is employed.