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7
Choke selection table
Choose the choke
RD xxxx
offering the required current rating and inductance characteristics. The name
provides a verification of selection: in RD wxyz--, w = diameter of housing in cm; x = housing height (1 denoting standard); y =
number of lines (2 = phase+neut., 3 = 3-phase, 4 = 3-phase+neut.), and z = connection type (2 = PCB pins, 7 = wire); -- indicates
current and inductance ratings.
SCHAFFNE R
RD Series
These chokes employ current-compensated windings to present a large
inductance to common-mode noise signals and handle peak currents
without saturating, utilizing toroidal ferrite cores to pack high inductance
values into compact housings. The family is ideal for interference
suppression in medium-to-high current applications such as
uninterruptible and switched-mode power supplies, and DC stages of
inverters. With a choice of over 40 versions, in a range of package styles,
designers can quickly create optimal filter solutions for any application.
6 to 64A ratings
0.2 to 25mH inductances
up to 600VAC or 850VDC
DC to 400Hz frequencies
PCB-mount or flying-lead versions
dual, triple and quad choke configurations
Current-compensated chokes
Nominal
current
A @ 40oC
Choke type
R
m
/
path
Circuit
symbol
Inductance
L*
mH/path
Weight
approx.
g
RD 7137-6-12m0
RD 7137-10-6m6
RD 7137-16-2m8
RD 7137-25-1m3
RD 7137-36-0m5
12
6.6
2.8
1.3
0.5
340
380
380
440
400
6
10
16
25
36
60.60
21.90
10.70
4.45
2.75
RD 6127-6-15m0
RD 6127-10-9m0
RD 6127-16-3m0
15
9
3
235
235
235
6
10
16
66.65
25.90
10.90
RD 6137-6-7m5
RD 6137-10-4m5
RD 6137-16-1m5
7.5
4.5
1.5
235
235
235
6
10
16
49
18.35
8.30
RD 7127-6-25m0
RD 7127-10-14m0
RD 7127-16-5m7
RD 7127-25-2m8
RD 7127-36-1m0
25
14
5.7
2.8
1
320
350
370
400
380
6
10
16
25
36
84.20
33.50
14.10
6.40
3.30
RD 5132-6-5m0
RD 5132-10-3m0
RD 5132-16-1m0
5
3
1
160
160
160
6
10
16
38
17.60
6.90
RD 5122-6-9m6
RD 5122-10-6m0
RD 5122-16-2m0
9.6
6
2
160
160
160
6
10
16
52.55
24.25
9.50
Environmental ratings
Maximum operating voltage:
High potential test voltage
winding-to-winding at 25C:
600VAC/850VDC at 40C
2500VAC, 1 minute, guaranteed
2500V, 50Hz, 2 sec, factory test
4000VAC, 1 minute, guaranteed
20 x I
at 25C
DC to 400Hz at 40°C
-25oC to +110C
25/110/21
UL94V0 (insulating tubes UL94V2)
winding-to-housing at 25C:
Surge current at 10msec:
Power operating frequency:
Operating/storage temp:
Climatic class per IEC 68:
Flammability:
Nominal
current
A @ 40oC
Choke type
R
m
/
path
Circuit
symbol
Inductance
L*
mH/path
Weight
approx.
g
RD 8127-16-12m0
RD 8127-25-5m0
RD 8127-36-3m0
RD 8127-50-1m0
RD 8127-64-0m8
12
5
3
1
0.8
590
630
690
640
710
16
25
36
50
64
20.05
8.45
4.55
2.50
1.60
RD 8137-16-5m0
RD 8137-25-2m5
RD 8137-36-1m5
RD 8137-50-0m6
RD 8137-64-0m5
5
2.5
1.5
0.6
0.5
630
650
720
700
780
16
25
36
50
64
11.60
6.40
3.65
2.15
1.35
RD 8147-16-3m0
RD 8147-25-1m3
RD 8147-36-0m8
RD 8147-50-0m3
RD 8147-64-0m2
3
1.3
0.8
0.3
0.2
650
650
760
740
820
16
25
36
50
64
9.25
5.05
3.00
1.75
1.10
RD 7147-6-6m0
RD 7147-10-3m5
RD 7147-16-1m5
RD 7147-25-0m7
RD 7147-36-0m2
6
3.5
1.5
0.7
0.2
320
370
390
430
400
6
10
16
25
36
45.10
19.10
8.50
3.65
2.30
Test conditions
* Measuring frequency: 1kHz; 500
μ
A > 0.16mH < 1.6mH;
50
μ
A > 1.6mH < 160mH; inductance tolerance +50%, -30%
Resistance: tolerance max. ±15% at 25°C; < 200m
100mA
Electrical characteristics at 25°C ±2°C