Technical specifications
Maximum continuous operating voltage:
Operating frequency:
Rated currents:
Overcurrent:
High potential test voltage
winding-to-winding @ 25°C:
Temperature range (operation and storage):
Flammability corresponding to:
Test conditions
Measuring frequency:
Resistance:
Electrical characteristics:
Common-mode suppression chokes are
mainly used to filter noise on AC power lines.
Noise on commercial power lines could enter
the equipment and disturb the proper
function. Noise generated by the equipment
for example from switch mode power
supplies need to be filtered and the spread of
such generated noise need to be suppressed.
Common-mode suppression chokes together
with line bypass capacitors building an AC
EMI suppression filter device.
Common-mode suppression chokes
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250VAC @ 50°C
dc to 400Hz @ 50°C
0.3 to 5A
1.5x I
3000VAC, 60 sec, guaranteed
2000V, 50Hz, 2 sec, factory test
-25°C to +100°C (25/100/21)
UL 94V-0
10kHz; 5mA < 16μH;
500μA > 16μH < 160μH;
50μA > 160μH > 16mH;
50mV > 16mH < 160mH
Inductance tolerance ±30%
Tolerance max. ±15% @ 25°C; ≤ 20mΩ, 1A;
> 20mΩ ≤ 200mΩ, 100mA; > 200mΩ ≤ 2V, 10mA
@ 25°C ±2°C
Features and benefits
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Rated currents up to 5A
Broadband attenuation characteristics
Low magnetic leakage fl ux
UL rated materials
RoHS compliant
Rated currents up to 5A.
Compact and light weight.
Low magnetic leakage flux.
Sectional winding.
Standard foot print.
Broad range of available inductances and
current ratings.
Custom-specific versions.
Schaffner offers you also EMI measure-
ment service to verify that your design will
pass the required safety standards.
nominal
for 1 minute, once per hour
RFI suppresion chokes
EV/EH series
Typical electrical schematic
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Typical applications
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Input filters for switch mode power
supplies
Filters to reduce leaking noise
TVs, VCRs, multimedia and audio
equipment
Office automation, communications and
other electronic devices
Electric ballast
AC/AC converters
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