250VAC - 390VDC 10mm Varistor - 10D391K

250VAC - 390VDC varistor with 10mm diameter. The tolerance value is 10%. 

 

Varistors are circuit elements that prevent instantaneous voltage fluctuations in the circuits in which they are located. They prevent damage to circuit elements by dampening voltage fluctuations. They are connected to the circuit in parallel.