DATASHEET
Two-Stage Filters FN 2090
Multi-stage AC/DC EMI Filter with Excellent Attenuation Performance
Rated currents from 1 to 30 A
Two-stage filter
Very high differential and common-mode
attenuation
Optional medical versions (B type)
Optional safety versions (A type)
Optional enhanced performance versions
Optional overvoltage protection (Z type)
Approvals
Features and benefits
FN 2090 two-stage filters are designed for easy and
fast chassis mounting.
Performance indicators
The FN 2090 filters are also available as B versions
with no Y-capacitors for medical applications as well
as A versions with low capacitance for safety critical
applications with a requirement for low leakage
currents.
FN 2090 filters offers an optimized filter range for
enhanced performance AC and DC applications , in
same compact size (KK, LL, NN types)
All filters provide an exceptional conducted
attenuation performance, based on chokes with
high permeable core material and excellent thermal
behaviour.
FN 2090 two-stage filters are designed for noisy
applications requiring excellent filter performance.
The higher inductivity versus amperage offers
increased attenuation performance with the same
form factor compared to FN 2060 and FN 2080 filter
series.
All FN 2090 filters can be delivered with optional
surge pulse protection (Z type).
FN 2090 filters are also available as singlestage filters
(FN 2030 series).
Various terminal options allow you to select the
desired connection style.
Technical specifications
Rated voltage*
Operating frequency
Rated currents
High potential test voltage
250 VAC, 50/60 Hz; 250 VDC
DC to 400 Hz
1 to 30 A @ 40°C max.
P –> PE 2000 VAC for 2 sec (equiv. cap <88 nF)
P –> PE 2550 VDC for 2 sec (equiv. cap >88 nF)
P –> PE 2500 VAC for 2 sec (B types)
P –> N 1100 VDC for 2 sec
-25°C to +100°C (25/100/21)
UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939 (applies to
AC and DC applications)
UL 94 V-2 or better
Helps compliance to IEC61000-4-5 (Differential Mode
only)
1,300,000 hours (1 to 10 A types)
1,100,000 hours (12 A types)
517,000 hours (16 and 30 A types)
Temperature range (operation and storage)
Certified to
Flammability corresponding to
Surge pulse protection (Z type)
MTBF @ 40°C/230 V (Mil-HB-217F)
Typical applications
Electrical and electronic equipment
Consumer goods
Household equipment
Building automation
Industrial applications
Machinery
Medical equipment
Electronic data processing equipment
Office automation and datacom equipment
Various noisy applications requiring high filter
performance
*maximum RMS operating voltage at rated frequency or the maximum DC operating voltage
Typical electrical schematic
(optional)
Z
P(DC+)
Cx
R
L
Cx
L
Cx
P'(DC+')
N(DC-)
N'(DC-')
PE
Cy1
LINE
Cy2
LOAD
Microcontroller MCU
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