Datasheet Summary
METAL OXIDE VARISTOR MOV
- 7mm Disc
RoHS
ü
HOW TO SELECT METAL OXIDE VARISTORS
- What is the range of ACrms or DC Voltage in the application?
- How will the varistor be connected in the circuit?
- Calculate the required varistor voltage at 10% to 25% above the system RMS or DC Voltage.
- Calculate the varistor energy rating needed based on energy in transient voltage.
- Calculate the surge current wave form from the surge voltage and surge impedance.
- Check to make sure the withstanding surge current of the varistor is sufficient.
P Type Y Type (most popular)
- Check whether the maximum energy and surge life of the varistor is enough.
- Check the relation:
Maximum withstanding...