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Varistor1.Product Overview Varistor are voltage dependent, nonlinear device which have an electrical behavior similar to back-to-back zener diodes. CNR series zinc oxide varistor are nonlinear resistors, consisting main of zinc oxide and several kinds of metal oxide additive.They are bilateral and symmetrical V-I characteristics curve and unparalleled large peak current capability are used for absorption of transient voltage, suppression of pulse noise and circuit voltage stabilization. 2.Features Fast response Excellent voltage ratio High stabilization for circuit voltage Unparalleled absorption for transient voltage characteristics Symmetrical V-I Characteristics curve 3.Explanation of Part Numbers CNR ** D *** * (example:CNR-05D180K) CNR:CeNtRa Metal Oxide Varistor Surge Absorber **(05):Element Dia.(05mm,07mm,10mm,14mm,18mm,20mm) D:Type(D:Standard Series,V:Models V-series,P:Models P-Series) ***(180):Varistor Voltage *(K):Tolerance(k:+ -10% Orcustomer special requirement) 4.Packaging Specifications(BULK) Part No.Min.Q'ty(pcs)/BagsQ'ty(pcs)/Inner BoxQ'ty(pcs)/CartonCNR-05D180K to CNR-05D391K10001000020000CNR-05D431K to CNR-05D781K10001000020000CNR-07D180K to CNR-07D391K10001000020000CNR-07D431K to CNR-07D621K1000800016000CNR-07D681K to CNR-07D821K1000500010000CNR-10D180K to CNR-10D391K500500010000CNR-10D431K to CNR-10D112K50040008000CNR-14D180K to CNR-14D391K50030006000CNR-14D431K to CNR-14D621K50025005000CNR-14D681K to CNR-14D182K50020004000CNR-18D180K to CNR-18D391K25015003000CNR-18D431K to CNR-18D621K25012502500CNR-18D681K to CNR-18D182K25010002000CNR-20D180K to CNR-20D391K25015003000CNR-20D431K to CNR-20D621K25012502500CNR-20D681K to CNR-20D102K25010002000 ......The above is only part of the product code,more type please contract Ms.Zona.