EMC/EMI Chokes
RD series
Current-compensated Chokes
Rated currents from 6 to 64A
Up to 600VAC or 850VDC
DC to 400Hz frequencies
configurations
Approvals
Dual, triple and quad-choke
Technical specifications
Flammability corresponding to:
High potential test voltage:
Maximum continuous operating voltage:
MTBF @ 40°C/230V (Mil-HB-217F):
Operating frequency:
Rated currents:
Surge current @ 10msec:
Temperature range (operation and
storage):
winding-to-housing:
winding-to-winding:
UL 94V-0 (insulation tubes UL 94V-2)
600VAC/850VDC @ 40°C
> 5,000,000 hours
dc to 400Hz
6 to 64 A @ 40°C max.
20 x I
nominal
@ 25°C
-25°C to +110°C (25/110/21)
4000VAC, 60 sec, guaranteed
2500VAC, 60 sec, guaranteed
2500V, 50Hz, 2 sec, factory test
Typical electrical schematic
RD chokes are attenuating common-
mode or asymmetric (P/N –> E)
interference signals, by being connected
of an AC powerline input. Symmetrical
components of the noise are also
in series with the phase and neutral lines
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 or wire connections.
Dual, triple and quad-choke
configuration.
Typical applications
Phase-angle control circuits in
EMI input filters
connection
combination with saturating chokes
For suppressing equipment with no earth
Suppressing high interference levels
Up to 64A quad configuration.
Multiple housing options.
on request.
Custom-specific versions are available
EMC/EMI Chokes > RD series
Choke selection table
Choke
RD 5122-6-9m6
RD 5122-10-6m0
RD 5122-16-2m0
RD 5132-6-5m0
RD 5132-10-3m0
RD 5132-16-1m0
RD 6127-6-15m0
RD 6127-10-9m0
RD 6127-16-3m0
RD 6137-6-7m5
RD 6137-10-4m5
RD 6137-16-1m5
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
7127-6-25m0
7127-10-14m0
7127-16-5m7
7127-25-2m8
7127-36-1m0
7137-6-12m0
7137-10-6m6
7137-16-2m8
7137-25-1m3
7137-36-0m5
7147-6-6m0
7147-10-3m5
7147-16-1m5
7147-25-0m7
7147-36-0m2
8127-16-12m0
8127-25-5m0
8127-36-3m0
8127-50-1m0
8127-64-0m8
8137-16-5m0
8137-25-2m5
8137-36-1m5
8137-50-0m6
8137-64-0m5
8147-16-3m0
8147-25-1m3
8147-36-0m8
8147-50-0m3
8147-64-0m2
Nominal current
@ 40°C
[A]
6
10
16
6
10
16
6
10
16
6
10
16
6
10
16
25
36
6
10
16
25
36
6
10
16
25
36
16
25
36
50
64
16
25
36
50
64
16
25
36
50
64
Inductance
L
[mH/path]
9.6
6
2
5
3
1
15
9
3
7.5
4.5
1.5
25
14
5.7
2.8
1
12
6.6
2.8
1.3
0.5
6
3.5
1.5
0.7
0.2
12
5
3
1
0.8
5
2.5
1.5
0.6
0.5
3
1.3
0.8
0.3
0.2
Resistance
R
[m/path]
52.55
24.25
9.5
38
17.6
6.9
66.65
25.9
10.9
49
18.35
8.3
84.2
33.5
14.1
6.4
3.3
60.6
21.9
10.7
4.45
2.75
45.1
19.1
8.5
3.65
2.3
20.05
8.45
4.55
2.5
1.6
11.6
6.4
3.65
2.15
1.35
9.25
5.05
3
1.75
1.1
Choke
configuration
[Qty]
2
2
2
3
3
3
2
2
2
3
3
3
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
Input/Output
connections
-02
-02
-02
-02
-02
-02
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
-07
Pin footprint
connections
[mm]
Ø1
Ø1.3
Ø1.6
Ø1
Ø1.3
Ø1.6
Ø1
Ø1.5
Ø1.8
Ø1
Ø1.5
Ø1.8
Ø1
Ø1.4
Ø1.8
Ø2.4
Ø2.7
Ø1
Ø1.5
Ø1.8
Ø2.5
Ø2.7
Ø1
Ø1.4
Ø1.8
Ø2.4
Ø2.5
Ø2
Ø2.4
1.5 x 4.5
1.7 x 5
2.5 x 5
Ø2
Ø2.4
1.5 x 4.5
1.7 x 5
2.5 x 5
Ø2
Ø2.4
1.5 x 4.5
1.7 x 5
2.5 x 5
Weight
[g]
160
160
160
160
160
160
235
235
235
235
235
235
320
350
370
400
380
340
380
380
440
400
320
370
390
430
400
590
630
690
640
710
630
650
720
700
780
650
650
760
740
820
Test c onditions:
Measuring frequenc y: 1kHz ; 500μA > 0.16mH > 1.6mH; 50μA > 1.6mH < 160mH
Induc tanc e toleranc e: +50%, -30%
Resistanc e toleranc e: max. ±15% @ 25°C; 200m, 100mA
Elec tric al c harac teristic s @ 25°C: ±2°C
EMC/EMI Chokes > RD series
Typical choke attenuation/resonance frequency characteristics
Per CISPR 17; 50/50 asym
RD 51x2
RD 61x7
RD 7127
RD 7137
RD 7147
RD 8127
RD 8137
RD 8147
Typical saturation characteristics
Inductance (typical value in %) vs. nominal current (A DC)
RD 51x2
RD 61x7
RD 71x7
RD 81x7
EMC/EMI Chokes > RD series
Mechanical data
RD 5122
RD 5132
RD 6127, RD 7127, RD 8127
RD 6137, RD 7137, RD 8137
RD 7147, RD 8147
Dimensions
RD 5132 RD 6127
A
50
60
C
35
35
D
5 ±0.5
150
E
selection table
F
10
G
15
20
H
20
40 ±0.4
I
4.1 +3/-0 4.1 +3/-0 4.1 +3/-0
J
120°
K
5
All dimensions in mm; 1 inc h = 25.4mm
Toleranc es ac c ording: IS O 2768-m / EN 22768-m
RD 5122
50
35
5 ±0.5
see choke
RD 6137
60
35
150
10
4.1 +3/-0
RD 7127
70
40
150
10
6.1
RD 7137
70
40
150
10
6.1
RD 7147
70
40
150
10
6.1
RD 8127
80
50
200
20
6.1
RD 8137
80
50
200
20
6.1
RD 8147
80
50
200
20
6.1
Tolerances
±0.5
±0.5
+5/-0
±1
±0.3
±0.3
+6/-0
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