Varistor 14mm 14D471K

This MOV is suitable for 220V AC line protection in a typical electronic devices against voltage surges and spikes, such as those generated by inductive switching transients.
The AC mains you get said 220V RMS. So peak voltage is 308V = 220V x 1.4 (VPeak = VRMS × √2)
This MOV 14D471K is having 300V AC RMS rating. So its suitable for 220V AC mains applications.

• Varistor voltage: 470V
     
• Varistor voltage tolerance:±10%
     
• Varistor max current: 8/20µs 4500A Max
    
•  Body dimensions: Ø16.5mm
     
• Terminal pitch: 7.5mm
     
• Energy: E10/1000µs 125J
     
• Max. operating voltage: 300V AC, 380V DC