Noise Suppression Effect of VFR/VFS Series

cFeatures (VFS9V)

cPulse-Voltage Breakdown Characteristic (VFS9V)

Items

Overload

Test methods

Rated values

temperature.

applied to the sample for 1000 to 1024 hours.

Then it is left at room temperature, for 4 to 24 hours before measuring.

Surge Test (1)

At room temperature, Surges are applied

hours, the sample is measured.

Surge Test (2)

High

Temperature

Load

At room temperature, the capacitor

"C" is charged with 70V, then discharged to

apply the voltage to the sample. Tested once

(resuming JASO A-1).

400V

0.47μF

70V

0.8

Ω

2

Ω

C

C=110mF

Items

Specifications

Rated Capacitance Change

Insulation Resistance

Rated of Change

Voltage Rate

Within±15%

500k

Ω min.

Within±15%

1.30 max.

50

Ω

50

Ω

V

800ns

Residual ratio

when 1000 pulses

are applied

VFS9V EMIGUARD

r use a self healing varistor- capacitor,

so that it can be used under a 500 to 600V surge that would

break conventional disc type EMI filters. As shown in the

figure below EMIGUARD

r withstands 2000V impulses

applied 1000 times.

cTemperature Characteristics of

Varistor Voltage - Insulation Resistance (VFS9V)

100

0

0

1000

500

Pulse Voltage Applied (V)

VFS9V

1500

2000

50

Capacitance: 0.022μF

with varistor function

3-terminal capacitor

Capacitance: 0.022μF

with no varistor

function

–10

0

+10

–30

0

30

60

90

Temperature (°C)

Insulation

resistance

Change rate of

varistor voltage

10

1

Continued on the following page.

27

• This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.