20D180K Просмотр технического описания (PDF) - CERAMATE TECHNICAL

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производитель

20D180K

VARISTOR

CERAMATE TECHNICAL 

CITATION

SUBJECT

TYPE

NFV20D□□□K

MODEL

ELECTRICAL CHARACTERISTICS

DATE

REV.

PAGE 4/5

Oct. 15, 2001

B01

4. ELECTRICAL CHARACTERISTICS

N0.

ITEM

4.0

Standard

Conditions

Maximum

4.1 Allowable

Voltage

4.2 Varistor Voltage

Varistor Voltage

4.3 Temperature

Coefficient

4.4

Max. Clamping

Voltage

4.5 Rated Power

Withstanding

4.6 Surge Current

4.7

Energy

4.8 Surge Life

＊(2) See Page 5

PERFORMANCE

AC : ＊(2) Vrms

DC : ＊(2) V

TEST METHODS

Unless otherwise specified, all tests are made

under environmental conditions as given below:

Temperature:

5〜35℃

Relative humidity: 45〜85 % RH

Maximum continuous sine wave(RMS) or DC

voltage which may be applied.

V1mA : ＊(2) V

0 〜 −0.05 %/℃

Voltage across the varistor measured at CmA DC.

VCmA at 85℃ － VCmA at 25℃

1

VCmA at 25℃

× 60 × 100

＊(2) V at ＊(2) A

＊(2) W

＊(2) A

＊(2) Joule

＊(2) A

Peak voltage across the varistor with a specified

peak impulse current of

8× 20μs waveform.

Maximum 50〜60Hz power which may be

loaded for 1,000 hrs at 85± 2℃ with

△VCmA/ VCmA ≦± 10%.

The max. current within the varistor voltage

change of less than ± 10% when one impulse

current (8× 20μs) applied.

The max. current with a varistor voltage change

of less than ± 10% when two times impulse

current (8× 20μs) are applied at intervals of 5

minutes.

The max. energy absorbed with a varistor voltage

change of less than ± 10% when one impulse(10

× 1000μs) is applied.

The max. current with a varistor voltage change

of less than ± 10% when 10,000 times impulse

current (8× 20μs) are applied at intervals of 20

seconds at room temperature.

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