VARISTOR 470V 4.5kA P=7.5mm
The MOV-14D471K is a 14 mm radial leaded metal-oxide varistor designed to protect electronic circuits from sudden voltage spikes such as lightning surges, switching transients, and power-line disturbances. It works by clamping high voltage surges and safely absorbing surge energy, preventing damage to sensitive components downstream.
It is commonly placed across L–N (line to neutral) in AC input stages of power supplies and appliances.
⚙️ Key Features
Varistor voltage: ~470 V (at 1 mA reference current)
Maximum AC operating voltage: 300 VAC
Maximum DC voltage: 385 VDC
Surge current capability: up to 4.5 kA (8/20 µs pulse)
Energy absorption rating: ~125 J
Clamping voltage: ~775 V (at rated surge current)
Capacitance: ~430 pF
Response time: very fast (< nanoseconds range, typical MOV behavior)
Operating temperature: -40°C to +85°C (typical range)
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