High-voltage varistor comes in 1210 case size

摘要

The VC121085S151 series joins the vendor's TransGuard series of multilayer varistors and includes a model with an 85V-dc rating in a 1210 case size. The single-chip devices provide bidirectional voltage protection in the on state and EMI/RFI attenuation in the off state. With a turn-on time of less than 1 nsec, the varistor can withstand multiple strikes and protects sensitive circuits from overvoltage conditions due to ESD, lightning, and inductive switching. The devices have a peak current rating of 250A, compared with 200A for competitive devices. Typical prices range from 8 cents to 14 cents (volume quantities).