MOV S20K420 420VAC 20mm Metal Oxide Varistor S20K420 ZOV Metal Oxide Veristor 420VAC 2 Pin Leads Power Resistor 

Description: MOV S20K420 20mm 420VAC Disk Type Metal Oxide Varistor

MOV S20K420 420VAC 20mm Metal Oxide Varistor S20K420 ZOV Metal Oxide Veristor 420VAC 2 Pin Leads Power Resistor

The MOV-S20K420 is a radial leaded Metal Oxide Varistor protects against overvoltage transients such as lightning, power contact and power induction. This device has a high current handling, high energy absorption capability and fast response times to protect against transient faults up to rated limits. Varistors provide reliable and economical protection against high voltage transients and surges which may be produced, for example, by lightning, switching or electrical noise on AC or DC power lines. They have the advantage over transient suppressor diodes in as much as they can absorb much higher transient energies and can suppress positive and negative transients. When a transient occurs, the varistor resistance changes from a very high stand-by value to a very low conducting value. The transient is thus absorbed and clamped to a safe level, protecting sensitive circuit components. Varistors are manufactured from a non-homogeneous material, giving a rectifying action at the contact points of two particles. Many series and parallel connections determine the voltage rating and the current capability of the varistor

Specifications:

• Model: Metal Oxide Varistor S20K420
• AC Max. Vm:420V
• DC Max. Vm:560V
• Energy (2ms): 220
• Rated Watt: 1W
• Max. Clamping V/A: 775V
• Varistor Volt.(VlmA): 470Vdc
• Weight: 10gm/pc

Features: