n Performance Characteristics

Specifications

ÑÑ

To meet the

specified value.

0 to Ð0.05 %/¡C

Characteristics

Standard Test

Condition

Varistor Voltage

Maximum Allowable

Voltage

Clamping Voltage

Rated Power

Maximum Energy

Maximum

Peak Current

Temperature Coefficient

of Varistor Voltage

Impulse Life (I)

Impulse Life (II)

Test Methods

Electrical measurements (initial/after tests) shall be conducted at

temperature of 5 to 35 ¡C, relative humidity of maximum 85 %

The voltage between two terminals with the specified measuring

shall be made as fast as possible to avoid heat affection.

The recommended maximum sinusoidal wave voltage (rms) or

the maximum DC voltage that can be applied continuously.

The maximum voltage between two terminals with the specified

impulse current (8/20 µs).

The maximum power that can be applied within the specified

ambient temperature.

Maximum energy at less than ±10 % of varistor voltage change

when the standard impulse (2 ms) is applied one time.

Maximum current at less than ±10 % of varistor voltage change

when impulse current (8/20 µs) is applied two times continuously

with the interval of 5 minutes.

´

1

´ 100(%/¡C)

60

The change of Vc shall be measured after the specified impulse

is applied 10000 times continuously with the interval of 10

seconds at room temperature.

The change of Vc shall be measured after the specified impulse

is applied 100000 times continuously with the interval of 10

seconds at room temperature.

Type

Part Number

Waveform

Current

ERZVF

1M220 to ERZVF1M680

8/20 µs

8 A

VF1M ERZVF1M820 to ERZVF1M271

8/20 µs

40 A

ERZVF

1M331 to ERZVF1M471

8/20 µs

30 A

8/20 µs

20 A

CF

ERZCF

1MK220 to ERZCF 1MK680

2 ms

0.5 A

ERZCF

1MK820 to ERZCF 1MK471 8/20 µs

20 A

ERZSF

1MK220 to ERZSF 1MK680 8/20 µs

18 A

SF

ERZSF

1MK820 to ERZSF 1MK271 8/20 µs

50 A

ERZSF

1MK331 to ERZSF 1MK471 8/20 µs

40 A

Type

Part Number

Waveform

Current

ERZVF

1M220 to ERZVF1M680

8/20 µs

5 A

VF1M ERZVF1M820 to ERZVF1M271

8/20 µs

25 A

ERZVF

1M331 to ERZVF1M471

8/20 µs

20 A

8/20 µs

14 A

CF

ERZCF

1MK220 to ERZCF 1MK680

2 ms

0.45 A

ERZCF

1MK820 to ERZCF 1MK471 8/20 µs

14 A

ERZSF

1MK220 to ERZSF 1MK680 8/20 µs

12 A

SF

ERZSF

1MK820 to ERZSF 1MK271 8/20 µs

35 A

ERZSF

1MK331 to ERZSF 1MK471 8/20 µs

28 A