TDK introduces the SMD varistor with high surge current capability

     TDK Corporation has recently introduced two new series of SMD varistors. The new family of components have a wide operating voltage range of 175 VRMS to 460 VRMS (corresponding to DC voltages of 225 VDC to 615 VDC). The B72210M* series is equivalent to the S14 lead type sheet varistor with A surge impulse current capability of 6000 A, while the B72214M* series is equivalent to the S20 lead type sheet varistor with a surge impulse current capability of 10,000 A. All models have a maximum operating temperature of 125°C and can withstand extreme hot and humid environments (85% relative humidity at 85° C).

     The new SMD series of high-surge inrush current components comply with the AEC-Q200 standard. All models are available in both horizontal and vertical versions for greater design flexibility. For the horizontal version, the B72210M* series measures 22 x15 x 11 mm, and the B72214M* series measures 27 x 18 x 11 mm (L x W x H). The vertical versions measure 15 x 10 x 20 mm and 18 x 10 x 25.5 mm, respectively. The new SMD family of components is more space efficient than comparable leaded varistors.