RFI suppresion chokes
RN series
Current-compensated chokes
■
■
■
■
■
Rated currents from 0.3 to 10A
DC to 1kHz frequency
100kHz to 3MHz common-mode
resonance frequency
Dual-choke configurations
Multiple PCB-mounting options
Approvals
Technical specifications
Maximum continuous operating voltage:
Operating frequency:
Rated currents:
High potential test voltage
winding-to-winding @ 25°C:
winding-to-housing @ 25°C:
Surge current @ 10msec:
Temperature range (operation and storage):
Flammability corresponding to:
MTBF @ 40°C/230V (Mil-HB-217F):
250VAC @ 40°C
dc to 1kHz
0.3 to 10A @ 40°C max.
1500VAC, 60 sec, guaranteed
1500V, 50Hz, 2 sec, factory test
4000VAC, 60 sec, guaranteed
20 x I
nominal
@ 25°C
-40°C to +125°C (40/125/56)
UL 94V-0
> 5,000,000 hours
Typical electrical schematic
Features and benefits
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.
■
■
■
■
■
■
Typical applications
■
High saturation resistance and excellent
thermal behavior.
Through hole pin connections.
Dual-choke configuration.
Small compact design.
Multiple housing options.
Custom-specific versions are available on
request.
Phase-angle control circuits in combination
with saturating chokes
■
■
EMI input filters
For suppressing equipment with no earth
connection
■
Suppressing high interference levels
> Components
> RN series
Choke selection table
Choke*
Nominal current
@ 40°C
[A]
0.3
0.6
1
1.5
2
0.4
0.5
0.6
0.8
1.2
1.5
2
4
0.3
0.5
0.8
1
1.2
1.5
2
2.5
3
4
0.6
0.8
1
1.5
2
2.5
3
4
0.5
1
1.4
2
4
6
0.5
1
2
4
6
1
2
4
6
8
10
Inductance
L
[mH/path]
12
4.4
3
1.6
1.1
39
27
15
10
6.8
3.3
1.8
0.7
47
39
27
15
10
6.8
4.2
3.3
2
1.5
47
39
18
10
6.8
5.6
4.5
3.3
82
33
27
6.8
3.3
1.8
100
47
10
3.9
1.8
68
18
6.8
3.9
2.7
1.8
Resistance
R
[mΩ/path]
1275
385
205
100
70
1460
1250
465
370
245
135
75
27
1750
810
500
375
200
130
102
72
55
35
1180
1000
610
220
147
105
80
45
2700
810
500
190
66
20
2900
880
230
58
20
1300
350
87
41
22
14
Choke
configuration
[Qty]
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Input/Output
connections
Type 1
[g]
2
2
2
2
2
5
5
5
5
5
5
5
5
9
9
9
9
9
9
9
9
9
9
17
17
17
17
17
17
17
17
32
32
32
32
32
32
33
33
33
33
33
54
54
54
54
54
54
Weight
Type 2
[g]
3
3
3
3
3
6
6
6
6
6
6
6
6
12
12
12
12
12
12
12
12
12
12
21
21
21
21
21
21
21
21
32
32
32
32
32
32
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
*
x02-0.3-02
x02-0.6-02
x02-1-02
x02-1.5-02
x02-2-02
x12-0.4-02
x12-0.5-02
x12-0.6-02
x12-0.8-02
x12-1.2-02
x12-1.5-02
x12-2-02
x12-4-02
x14-0.3-02
x14-0.5-02
x14-0.8-02
x14-1-02
x14-1.2-02
x14-1.5-02
x14-2-02
x14-2.5-02
x14-3-02
x14-4-02
x22-0.6-02
x22-0.8-02
x22-1-02
x22-1.5-02
x22-2-02
x22-2.5-02
x22-3-02
x22-4-02
x42-0.5-02
x42-1-02
x42-1.4-02
x42-2-02
x42-4-02
x42-6-02
143-0.5-02
143-1-02
143-2-02
143-4-02
143-6-02
152-1-02
152-2-02
152-4-02
152-6-02
152-8-02
152-10-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
-02
Replace the x by the desired housing style type 1 or 2.
1: Choke horizontal
2: Choke vertical
Test conditions:
Measuring frequency: 10kHz; 5mA < 16μH; 500μA > 16μH < 160μH; 50μA > 160μH < 16mH; 50mV > 16mH < 160mH
Inductance tolerance: +50%, -30%
Resistance tolerance: max. ±15% @ 25°C; ≤ 20mΩ, 1A; > 20mΩ ≤ 200mΩ, 100mA; > 200mΩ ≤ 2Ω, 10mA
Electrical characteristics @ 25°C: ±2°C
> Components
> RN series
Mechanical data
RN 102
A
C
E
4
2
4
2
RN 112, RN 114, RN 122, RN 142, RN 143
A
G
2
4
3
1
2
4
H
1
3
B
I
H
E
B
I
1
3
G
L
F
D
3
1
F
L
C
D
RN 202
A
RN 212, RN 214, RN 222, RN 242
A
4
3
3
4
4
3
3
4
E
H
2
1
E
B
1
2
B
1
2
H
2
1
I
F
G
C
D
G
C
F
D
RN 152
A
1
3
3
1
E
B
H
2
4
4
2
G
F
C
D
Dimensions
RN 102
RN 112
RN 114
RN 122
RN 202
RN 212
RN 214
RN 222
RN 142
RN 143
RN 242
RN 152
Tol.
A
B
C
D
E
F
G
H
I
L
14
14
9
4
0.6
2
10
10
4
12
17.1
17.7
12.6
4
0.8
2
10
15
8
12
21.5
22.5
13.2
4
0.8
12.5
20.1
27
28
16.5
4
0.8
15
25
8.8
18.2
13.5
4.5
0.8
1.5
5.08
15.21
12.5
18
20
4
0.8
2
10
15
6
15.5
23
25
4
0.8
12.5
10
18
31
29.3
4
0.8
15
12.5
32.5
33.1
19.7
4.3
0.8
20
30
32.5
33.1
19.7
4.3
0.8
20
30
18
31
34.3
4.2
0.8
15
12.5
41.8
43
25
4.5
1.2
3.4
15
40
±0.3
±0.3
±0.3
±0.5
±0.1
±0.2
±0.2
All dimensions in mm; 1 inch = 25.4mm
Tolerances according: ISO 2768-m / EN 22768-m
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www.schaffner.com
May 2008
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