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Metal Oxide Varistors

Metal Oxide Varistors
Metal Oxide Varistors
A metal oxide varistor, or MOV, is a passive component with an electrical resistance that varies with supplied voltage. They are used in circuits to provide optimal operating conditions and to protect against excessive transient voltages.

MOVs are the most common type of varistor, and they provide excellent transient voltage suppression. When the voltage across the varistor is low during normal operation, the MOV remains non-conductive. When voltage exceeds the varistor's clamping voltage, the MOV provides shunt-like behavior by diverting the excess voltage away from the circuit where it dissipates as heat.

Metal oxide varistors are available in a wide variety of sizes and offer high surge protection capabilities. They are often the first line of defense in industrial applications for transient surge protection.

LA Series Image
  • Energy Absorption Capability
  • Wide Operating Voltage Range
  • Available in Tape and Reel or Bulk Pack
  • RoHS Compliant
The LA series of transient voltage surge suppressors are radial leaded varistors that are designed to be operated continuously across AC power lines. These UL recognized varistors require very little mounting space, and are offered in various standard lead form options.
PA Series Image
  • 130~1000 Max. Applied VAC
  • 175~1350 Max. Applied VDC
  • Up to 380 Joules
  • Up to 2800 Max. Clamping Volts
  • Up to 6500 Amps Peak
CKE Metal Oxide Varistors are Transient Voltage Suppressors with a non-linear current-voltage characteristic, which sustains an almost constant voltage over a wide range of current. These varistors and suppressors are ideally suited to all transient voltage protection applications and their high clamping efficiency and low steady power dissipation offer considerable circuit advantages over most existing methods of protection.
  • Up to 100 Max. Clamping Amps
  • Panel Mount
  • UL and CSA Approvals on Select Models
LA Series Image
  • 130~1000 Max. Applied VAC
  • 170~1465 Max. Applied VDC
  • Up to 400 Joules
  • Up to 2970 Max. Clamping Volts
  • Up to 6500 Amps Peak
CKE Metal Oxide Varistors are Transient Voltage Suppressors with a non-linear current-voltage characteristic, which sustains an almost constant voltage over a wide range of current. These varistors and suppressors are ideally suited to all transient voltage protection applications and their high clamping efficiency and low steady power dissipation offer considerable circuit advantages over most existing methods of protection.
  • Up to 100 Max. Clamping Amps
  • Radial Leads
  • UL and CSA Approvals on Select Models
DB Series Image
  • High Energy Absorption Capability
  • Wide Operating Voltage Range
  • Screw Terminals, Quick Connect Push-On Connectors
  • Case Design Provides Complete Electrical Isolation for Disc Subassembly
  • RoHS Compliant
The DA and DB series transient surge suppressors are heavy-duty metal oxide varistors designed to provide surge protection for motor controls and power supplies used in oil-drilling, mining, transportation equipment. Bothe the DA and DB series feature improved creep and strike distance capability to minimize breakdown along the package surface design that provides complete electrical isolation of the disc subassembly.
EH Series Image
  • 130~660 Max. Applied VAC
  • 175~850 Max. Applied VDC
  • Up to 940 Joules
  • Up to 1050 Max. Clamping Volts
  • Up to 1780 Amps Peak
CKE Metal Oxide Varistors are Transient Voltage Suppressors with a non-linear current-voltage characteristic, which sustains an almost constant voltage over a wide range of current. These varistors and suppressors are ideally suited to all transient voltage protection applications and their high clamping efficiency and low steady power dissipation offer considerable circuit advantages over most existing methods of protection.
  • Up to 1160 Max. Clamping Amps
  • Panel Mount
  • UL and CSA Approvals on Select Models
M Series Image
ZA Series Image
DA Series Image
  • High Energy Absorption Capability
  • Wide Operating Voltage Range
  • Screw Terminals, Quick Connect Push-On Connectors
  • Case Design Provides Complete Electrical Isolation for Disc Subassembly
  • RoHS Compliant
The DA and DB series transient surge suppressors are heavy-duty metal oxide varistors designed to provide surge protection for motor controls and power supplies used in oil-drilling, mining, transportation equipment. Bothe the DA and DB series feature improved creep and strike distance capability to minimize breakdown along the package surface design that provides complete electrical isolation of the disc subassembly.
ZA Series Image
  • Wide Operating Voltage Range
  • 5 Model Sizes Available
  • Standard Lead Form Options
  • Available in Tape and Reel or Bulk Pack
  • RoHS Compliant
The ZA series of transient voltage surge suppressors are radial leaded varistors designed for use in the protection of low and medium-voltage circuits and systems. Typical applications include motor control, telecom, automotive systems, solenoid, and power supply circuits to protect circuit board components and maintain data integrity.
HA Series Image
  • Wide Operating Voltage Range
  • High Energy Absorption Capability
  • High Peak Pulse Current Capability
  • Rigid Terminal for Secure Mounting
  • RoHS Compliant
Ha series transient surge suppressors are industrial high energy metal oxide varistors. They are designed to provide secondary surge protection in the outdoor and service entrance environment, and also in industrial applications for motor controls and power supplies used in the oil-drilling, mining, and transportation fields.
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