Current-compensated Chokes
EMC/EMI Chokes RN series
Rated currents from 0.3 to 10 A
DC to 1kHz frequency
100kHz to 3MHz common-mode resonance
frequency
Dual-choke configurations
Multiple PCB-mounting options
VDE: excluding RN 102, RN 202
Approvals
RN chokes are attenuating common-mode or
asymmetric (P/N –> E) interference signals, by being
connected in series with the phase and neutral lines
of an AC powerline input. Symmetrical components
of the noise are also attenuated by the leakage
inductance of the windings. These chokes are
typically used in conjunction with suppression
capacitors.
Features and benefits
High saturation resistance and excellent thermal
behavior
Through hole pin connections
Dual-choke configuration
Small compact design
Multiple housing options
Technical specifications
Flammability corresponding to
High potential test voltage
winding-to-housing @ 25°C
winding-to-winding @ 25°C
UL 94 V-0
4000 VAC, 60 sec, guaranteed
1500 VAC, 60 sec, guaranteed
Custom-specific versions are available on request
Typical applications
Phase-angle control circuits in combination with
saturating chokes
EMI input filters
For suppressing equipment with no earth
connection
Suppressing high interference levels
Maximum continuous operating voltage
MTBF @ 40°C/230V (Mil-HB-217F)
Operating frequency
Rated currents
Surge current @ 10msec
1500 V, 50 Hz, 2 sec, factory test
250 VAC
> 5,000,000 hours
50/60 Hz
Temperature range (operation and storage)
0.3 to 10 A @ 40 °C max.
20 x Inominal @ 25°C
Typical electrical schematic
-40 °C to +125 °C (40/125/56)
3
EMC/EMI Products
Schaffner Group
Datasheets
2014
Choke selection table
Choke*
Nominal current
@ 40 °C
[A]
0.5
1
2
4
6
1
2
4
6
10
8
Inductance
L
[mH/path]
100
47
10
Resistance
R
[mΩ/path]
2900
880
230
58
20
1300
350
87
41
22
14
Choke
configuration
[Qty]
2
Input/Output
connections
-02
Type 1
[g]
33
Weight
Type 2
[g]
RN 143-0.5-02
RN 143-2-02
RN 143-4-02
RN 143-6-02
RN 152-1-02
RN 143-1-02
2
2
2
2
-02
-02
-02
-02
33
33
33
33
3.9
1.8
68
6.8
3.9
2.7
1.8
18
RN 152-2-02
RN 152-4-02
RN 152-6-02
RN 152-8-02
2
2
2
2
2
-02
-02
-02
-02
-02
54
54
54
54
54
RN 152-10-02
2
-02
54
* Replace the x by the desired housing style type 1 or 2.
1: Choke horizontal
2: Choke vertical
Test conditions:
Measuring frequency: 10 kHz; 5 mA < 16μH; 500μA > 16μH < 160μH; 50μA > 160μH < 16mH; 50mV > 16mH < 160mH
Inductance tolerance: +50%, -30%
Resistance tolerance: max. ±15% @ 25 °C; ≤ 20mΩ, 1 A; > 20mΩ ≤ 200mΩ, 100mA; > 200mΩ ≤ 2Ω, 10mA
Electrical characteristics @ 25 °C: ±2°C
Typical choke attenuation/resonance frequency characteristics
Per CISPR 17; 50 Ω/50 Ω asym
RN x02
RN x12
RN x14
RN x22
RN x42
RN 143
RN 152
4
EMC/EMI Products
Schaffner Group
Datasheets
2014
Typical saturation characteristics
RN x02 / RN x12 / RN x14 / RN x22
Inductance (typical value in %) vs. nominal current (A DC)
RN x42 / RN 143 / RN 152
Mechanical data
RN 102
RN 112, RN 114, RN 122, RN 142, RN 143
RN 202
RN 212, RN 214, RN 222, RN 242
RN 152
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