--------- Electrical ---------

Standard Test

condition

 Environmental conditions under which every measuring is done without doubt on the measuring results. Unless specially specified, temperature, relative humidity are 5 to 35C, 45 to 85% RH.

¡@-
Varistor Voltage The voltage between two terminals with the specified measuring current CmA DC applied is called Vc or V CmA The measurement shall be made as fast as possible to avoid heat affection.

To meet the specified value

¡@
Maximum Allowable Voltage¡@ The maximum sinusoidal RMS voltage or maximum DC voltage that can be applied continuously in the specified environmental temperature range.
Clamping Voltage The maximum voltage between two terminals with the specified standard impulse current ( 8/20 us )illustrated below applied. 

Rate Power

The power that can be applied in the specified ambient temperature.
Maximum Energy The maximum energy within the varistor voltage chahge change of 10% when on impulse of 2 ms or 10/1000 us is applied.
Max. Peak Current (Withstanding Surge Current) 2 times The Max. current within the varistor voltage change of 10%withthe standard impulse current ( 8/20us ) applied 2 times with an interval of 5 minutes.
1 time The Max. current within the varistor voltage change of 10% with the standard impulse current (8/20us) applied 1 time.
Temperature Coefficient of Varistor Voltage

Vc at 85C - Vc at 25C

 x

   1   

 x100(%/C)

                Vc at 25C           

  60
- 0.05%/ C Max.
Capacitance Capacitance shall be measured at 1KHz10%, 1 Vrms Max.    OV bias and 202C To meet the specified value
Dissipation Factor  Dissipation Factor shall be measured at 1KHz10%, 1 Vrms  OV bias and 202C.
Withstanding Voltage (Body Insulation)

The specified voltage shall be applied both terminals of the specimen connected together and metal foil closely wrapped round its body for 1 minute.  Electrical breakdown shall be examined.

Classification

(nominal varistor voltage)

 Test Voltage (AC)
V0.1mA,V1mA<=330V 1000Vrms
V0.1mA,V1mA>330V 1500Vrms

No breakdown
Impulse Life ( I )

The change of Vc shall be measured after the impulse listed below is applied 10,000times continuously with the interval of 10 seconds at room temperature.

5 Series 18V ~ 68V 0.5A (2ms)
82V ~ 470V 20A (8/20us)
7 Series 18V ~ 68V 18A (8/20us)
82V ~ 470V 50A (8/20us)
10 Series 18V ~ 68V 50A (8/20us)
82V ~ 1100V 100A (8/20us)
14 Series 18V ~ 68V 75A (8/20us)
82V ~ 1800V 150A (8/20us)
20 Series 18V ~ 68V 120A (8/20us)
82V ~ 1800V 200A (8/20us)
VcmA/VcmA<=10%

Impulse Life ( II )

 The change of Vc shall be measured after the impulse listed below is applied 10,000 times continuously with the interval of 10 seconds at room temperature.
5 Series 18V ~ 68V 0.45A (2ms)
82V ~ 470V 14A (8/20us)
7 Series 18V ~ 68V 12A (8/20us)
82V ~ 470V 35A (8/20us)
10 Series 18V ~ 68V 35A (8/20us)
82V ~ 1100V 70A (8/20us)
14 Series 18V ~ 68V 45A (8/20us)
82V ~ 1800V 90A (8/20us)
20 Series 18V ~ 68V 55A (8/20us)
82V ~ 1800V 100A (8/20us)
VcmA/VcmA<=10%

Note:  

Varistor voltage change of forward direction shall be measured in the test of uni-pole surge life and DC load life.

Characteristics

Test Methods/Description

Specifications