The general-purpose disc type ZR series is best suited as an element to protect electronic equipment, control equipment, and general electronic devices from a surge and a noise as a varistor for low pressure.

Features: This varistor is excellent in voltage nonlinearity and can suppress the clamping voltage at a low level. The voltage-current characteristic of this varistor is symmetrical, and accordingly, this varistor can handle a surge with both positive and negative polarities and can be used for an AC circuit. This varistor is compact but has high surge resistance, and accordingly this varistor is stable for repeated surges. This varistor responds quicker and less follow current in comparison with a discharging protection element. Small temperature coefficient Wide serviceable voltage range High reliability

Applications: Protection from instantaneous overvoltage of various semiconductors. Protection from an inductive lightning surge caused by wiring and communication lines. Protection from a switching surge caused by relays or the like. For stabilizing voltage

The MNR varistor is a ceramic semiconductor made from zinc oxide as a main ingredient and several kinds of additives, which is manufactured in the well-managed processes.
This series is excellent in voltage nonlinearity, surge resistance, and responsiveness to a surge, and also has a characteristic of low clamping voltage. Therefore, this varistor can be used in a wide range of applications, including as measures against a surge for various types of electronic equipment, a device of absorbing a switching surge caused by an inductive load, and a device protecting from abnormal voltage.

Features: This varistor is excellent in voltage nonlinearity and can suppress the clamping voltage at a low level. The response is quick. The voltage-current characteristic of this varistor is symmetrical, and accordingly, no follow current is generated after a surge with both positive and negative polarities. This varistor is capable of responding, and is usable in an AC circuit in the as-is state. Small temperature coefficient. Wide serviceable voltage range. High reliability. This varistor is stable for repeated surges.

Applications: Protection from instantaneous overvoltage of various semiconductors. Protection from an inductive lightning surge caused by wiring and communication lines. Protection from a switching surge caused by an inductive load of relays or the like