The DV 250 K 3225 from Bourns is a Medium Voltage Varistor that has been designed to protect electronic equipment against high voltage surges in the medium voltage region. It has an AC voltage rating of 250 V (RMS), a DC voltage rating of 320 V, and a clamping voltage of 650 V. This varistor provides superior transient energy absorption due to its improved energy volume distribution and power dissipation. It is packaged in a leadless chip design, which offers zero inductance to facilitate very fast response time to transient surges. This varistor is available in a surface-mount package that measures 8 x 6.3 x 2 mm.