Layered metal oxide varistor (MOV)

Metal Oxide Varistor today to explore this device, generally more we use the patch, here referred to as the layered MOV MLV (Multilayer Varistors).
Varistor voltage (Breakdown Voltage):
The current flowing through the varistor 1mA, plus varistor voltage drop in the voltage across it called.

Leakage current (Leakage Current at Vdc):
Varistor breakdown region before the current flowing in the normal operating voltage, referred to as a leakage current.

Operating voltage (Working Voltage):
Varistor normal working voltage, the current flowing through the leakage current.

Maximum energy absorption capacity (Energy Load-Dump) & (Energy 10 * 1000μs)
Energy is applied for a certain value of the specified waveform (here we generally two types, one is the ISO7637 prescribed parabolic load waveform, a rise time of 10μs, the duration of the 1000μs the pulse) the impact of current, pressure-sensitive after impact the absolute value of the voltage change is less than 10% and no mechanical damage can pass through the maximum energy sample.

Resistance to surge current capability (Peak Current @ Amp. 8 * 20μs)
Varistors after large pulse current impact, the U / I characteristic will generate metamorphosis. The metamorphosis will make the leakage current increases, the pressure-sensitive voltage drop. Varistors meet the decreased requirements to withstand maximum inrush current, called the through-flow capacity of the varistor(Metal Oxide Varistor) , also known as the flow capacity or through traffic, and withstand high surge current characterization of varistors impact the ability of a parameter. This parameter is related to the pulse amplitude, pulse duration and the number of pulses which are subject.
Maximum AC operating voltage (URMS)
Continuously applying an AC voltage of 1000 hours, at the highest operating temperature for 1-2 hours and then stored at room temperature and normal humidity, and the absolute value of the varistor the varistor voltage change is less than 10% can exert maximum voltage.

Maximum DC voltage (UDC)
Continuously applying the DC voltage of 1000 hours at the maximum working temperature, and then stored at room temperature and normal humidity for 1-2 hours, and the absolute value of the varistor the varistor(Metal Oxide Varistor)  voltage change is less than 10% can exert maximum voltage.

Varistor voltage (Breakdown Voltage):
The current flowing through the varistor 1mA, plus varistor voltage drop in the voltage across it called.

Clamping voltage (Max Clamping Voltage):
The current flowing through the varistor is Ip, plus the voltage across it drop called clamping voltage clamping voltage varistor protection level, also known as.
IP: with the electrode area of ​​the pressure-sensitive resistor and voltage levels, generally Ip is ~~ 100A.

Leakage current (Leakage Current at UDC):
Varistor (Metal Oxide Varistor) breakdown region before the current flowing in the normal operating voltage, referred to as a leakage current.