DATASHEET
Common-mode Chokes EV/EH series
Common-mode Suppression Chokes
Rated currents up to 5 A
Broadband attenuation characteristics
Low magnetic leakage flux
UL rated materials
RoHS compliant
Technical specifications
Maximum continuous operating voltage
250 VAC @ 50°C
Operating frequency
DC to 400 Hz
Rated currents
0.3 to 5 A
Overcurrent
1.5x Inominal for 1 minute, once per hour
winding-to-winding @ 25°C
3000 VAC, 60 sec, guaranteed
2000 V, 50 Hz, 2 sec, factory test
Temperature range (operation and storage)
-25°C to +100°C (25/100/21)
Flammability corresponding to
UL 94 V-0
Test conditions
Measuring frequency
10 kHz; 5 mA <16 μH;
500 μA >16 μH <160 μH;
50 μA >160 μH >16 mH;
50 mV >16 mH <160 mH
Inductance tolerance ±30%
Resistance
Tolerance max. ±15% @ 25°C; ≤20 mΩ, 1 A;
>20 mΩ ≤200 mΩ, 100 mA; >200 mΩ ≤2 V, 10 mA
Electrical characteristics
@ 25°C ±2°C
Approvals
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.
Features and benefits
Rated currents up to 5 A
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
Typical applications
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
Typical electrical schematic
