Suppression Chokes
www.schurter.com/pg8_82
Magnetically Compensated Choke, 1- and 3-phase
DFK
Description
- Current compensated choke
- 1- or 3-phase choke
- THT terminals or wire leads
- Flange for mounting onto printed circuit board
- Fully potted resign
- Attenuation of common mode interferences
- May also be used in direct current applications where magnetic com-
pensation is required
- Designed for 230/400 VAC applications
Applications
Standards
References
Weblinks
General Product Information
Approvals, RoHS, CHINA-RoHS, e-Store, Distributor-Stock-Check
- EN 60938
- IEC 60950
- T.2
- VDE 0565
Technical Data
Rated voltage
Rated Current
Rated inductance
Power Operating Frequency
Terminal technic
Weight
Material: Housing
Sealing Compound
up to 440 VAC
0.5 - 15 A @ Ta 40 °C
1 - 20 mH, Tol. -30% +50%
50 - 400 Hz
THT, Flexible wire
6 - 163 g
UL 94V-0
UL 94V-0
Test Voltage
Isolation Voltage
Climatic Category
Allowable Operation Temp.
1.8 kV, 50 Hz, 1 min, winding to winding
2 kV eff., winding to ambient
25/100/21 acc. to IEC 60068-1
-25 °C to 100 °C
Dimensions
Case 03
Case 07
12.5
=
=
17.5
15
20
=
=
15
2
12.5
16.5
10
4.5 ±0.5
15
20
15
4.5 ±0.5
EMC Products
Suppression Chokes
www.schurter.com/pg8_82
DFK
Diagrams
L
N
: Radio interference suppression choke (magnetically compensated DF)
L
S
: Radio interference suppression choke (magnetically saturated DFS/DFL)
Variants
I
n
[A]
0.5
1
1
1
2
2
3
6
10
15
6
L
n
[mH]
10
10
20
10
10
20
10
4
2
1
4 x 1.5
R
cu
[mΩ]
900
500
500
510
250
250
150
27
9
10
20
f
RES
[MHz]
0.5
0.7
0.5
0.5
0.5
0.3
0.38
0.4
1.45
1.45
0.2
Copper ø
[mm]
0.5
0.6
0.6
0.6
0.6
0.6
0.6
-
-
2.5 x 2.5
1.5 x 1.5
Weight
[g]
6
12
12
18
18
37
37
127
127
127
163
Housing Packing Order
unit
Number
03
07
07
11
12
20
20
25-2
25-2
25-2
29-4
100
150
150
50
50
45
45
10
10
10
10
DFK-
DFK-20-
DFK-20-
DFK-25-
DFK-25-
DFK-33-
DFK-33-
DFK-40-
DFK-40-
DFK-40-
DFK-48-
The specifications, descriptions and illustrations indicated in this document are based on
EMC Products
current information. All content is subject to modifications and amendments.
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