... ,20D 2:Varistor voltage;V1ma = 1.5Vp = 2.2Vac 3:rohs.color,blue 14D681k Zinc Oxide Varistor 1.specification: ... 7D,10D,14D,20D2:Varistor voltage;V1ma = 1.5Vp = ... noise reduction, the role of protecting the semiconductor components.Varistor voltage; V1ma = 1.5Vp = 2.2VacFlow ... detailed parameter as following: 14D681k Zinc Oxide Varistor