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10
SCHAFFNE R
RN 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 form-factors. The dual-configuration component
family offers an ideal basis for building multi-stage interference
suppression circuits for low-to-medium current applications such as
uninterruptible and switched-mode power supplies, regulators, DC-DC
converters, and frequency inverters. With a choice of 48 versions,
in eleven different packages, designers can quickly create optimized
filtering solutions for any particular requirement.
0.3 to 10A ratings
0.7 to 100mH inductances (dual choke configurations)
100kHz-3MHz common-mode resonance frequencies
11 different PCB-mount housing sizes
Current-compensated chokes
Choke selection table
Choose the choke
RN xx
offering the required current rating and inductance characteristics. determines package
style: insert 1 for a lower profile , 2 for a taller component with a smaller footprint. Example: RN 122-1/02 is a lower profile choke.
Nominal
current
A @ 40oC
Choke type
(1 = 2 = )
R
m
/
path
Circuit
symbol
Inductance
L*
mH/path
Weight
approx.
g
RN 02-0.3/02
RN 02-0.6/02
RN 02-1/02
RN 02-1.5/02
RN 02-2/02
12
4.4
3
1.6
1.1
2/3
2/3
2/3
2/3
2/3
0.3
0.6
1
1.5
2
1275
385
205
100
70
RN 12-0.4/02
RN 12-0.5/02
RN 12-0.6/02
RN 12-0.8/02
RN 12-1.2/02
RN 12-1.5/02
RN 12-2/02
RN 12-4/02
39
27
15
10
6.8
3.3
1.8
0.7
5/6
5/6
5/6
5/6
5/6
5/6
5/6
5/6
0.4
0.5
0.6
0.8
1.2
1.5
2
4
1460
1250
465
370
245
135
75
27
Environmental ratings
Maximum operating voltage:
High potential test voltage
winding-to-winding at 25C:
250V at 40C
1500VAC, 1 minute, guaranteed
1500V, 50Hz, 2 sec, factory test
4000VAC, 1 minute, guaranteed
20 x I
at 25C
DC to 1kHz at 40°C
-40oC to +125C
-40oC to +125C
40/125/56
UL94V0
winding-to-housing at 25C:
Surge current at 10msec:
Power operating frequency:
Operating temperature:
Storage temperature:
Climatic class per IEC 68:
Flammability:
V
E
D
Nominal
current
A @ 40oC
Choke type
(1 = 2 = )
R
m
/
path
Circuit
symbol
Inductance
L*
mH/path
Weight
approx.
g
RN 14-0.3/02
RN 14-0.5/02
RN 14-0.8/02
RN 14-1/02
RN 14-1.2/02
RN 14-1.5/02
RN 14-2/02
RN 14-2.5/02
RN 14-3/02
RN 14-4/02
47
39
27
15
10
6.8
4.2
3.3
2
1.5
9/12
9/12
9/12
9/12
9/12
9/12
9/12
9/12
9/12
9/12
0.3
0.5
0.8
1
1.2
1.5
2
2.5
3
4
1750
810
500
375
200
130
102
72
55
35
RN 22-0.6/02
RN 22-0.8/02
RN 22-1/02
RN 22-1.5/02
RN 22-2/02
RN 22-2.5/02
RN 22-3/02
RN 22-4/02
47
39
18
10
6.8
5.6
4.5
3.3
17/21
17/21
17/21
17/21
17/21
17/21
17/21
17/21
0.6
0.8
1
1.5
2
2.5
3
4
1180
1000
610
220
147
105
80
45
RN 42-0.5/02
RN 42-1/02
RN 42-1.4/02
RN 42-2/02
RN 42-4/02
RN 42-6/02
82
33
27
6.8
3.3
1.8
32
32
32
32
32
32
0.5
1
1.4
2
4
6
2700
810
500
190
66
20
RN 152-1/02
RN 152-2/02
RN 152-4/02
RN 152-6/02
RN 152-8/02
RN 152-10/02
68
18
6.8
3.9
2.7
1.8
54
54
54
54
54
54
1
2
4
6
8
10
1300
350
87
41
22
14
RN 143-0.5/02
RN 143-1/02
RN 143-2/02
RN 143-4/02
RN 143-6/02
100
47
10
3.9
1.8
33
33
33
33
33
0.5
1
2
4
6
2900
880
230
58
20
Test conditions
* Measuring frequency: 10kHz; 5mA < 16
μ
H;
500
μ
A > 16
μ
H < 160
μ
H; 50
μ
A > 160
μ
H < 16mH;
50mV > 16mH < 160mH; inductance tolerance +50%, -30%
Resistance: tolerance max. ±15% at 25°C;
≤
20m
1A; > 20m
≤
200m
100mA; > 200m
≤
2
10mA
Electrical characteristics at 25oC ±2oC
(RN 142/242/143/152 pending)