Saturating Chokes and Linear/Saturating Chokes
DFSG, DLFP
and
DLFL
Series
Nominal current:
Nominal inductance:
Rated voltage U
R
(U
max.
):
Frequency:
Isolation voltage:
Climatic category:
Plastic case:
Potting resin:
0.8 - 45 A @
ϑ
a 45°C
50 - 1000
µ
H / tol. ± 15%
440 VAC
50Hz
2 kV eff. / wdg.-ambient
25/100/21 acc. to IEC 60068-1
UL 94 V-0
UL 94 V-0
All types of chokes correspond to the international specifications
for radio interference chokes (EN 138100).
Magnetic saturating chokes are used mainly in phase angle con-
trol circuits using thyristors, triacs or transistors. These chokes
are called non-linear inductances. Together with capacitors, they
perform as an LC-filter at the point of switching. As soon as the
current starts to flow, the inductance reduces considerably and at
the point of complete saturation, its value is approximately than
of an air cored coil. Chokes of this kind are very popular due to
their low cost-volume ratio.
The new DLFP/DLFL series of chokes still show more than 40% of
their inductance at I
N
. Due to this charateristic, we call them
«linear-saturating chokes».
The use of iron powder toroids will reduce to negligible levels an
undesirable noise which may be generated by the usage of iron
laminations core. The new chokes (DLFP DLFL) were developed
,
for rated current above 10A.
Saturating and linear chokes act at their optimum when they are
mounted directly at the interference originator (thyristor, triac).
For highest requirements concerning the interference suppression
is recommended a combination of two saturation chokes (appli-
cation 1) or a saturation chokes together with a magnetically com-
pensated multiple choke (application 2).
Technical Data saturating chokes DFSG
Type
DFSG1-20-0.8/a
DFSG1-20-1.5/a
DFSG1-25-2/a
DFSG1-25-3/a
DFSG1-30-3/a
DFSG1-30-6/a
DFSG1-33-5/a
DFSG1-33-10/a
[A]
I
N
A x D x H [mm]
Dimensions
Cx1/Cx2
[µF]
R
cu
(2)
Case
[mΩ]
0.8
1.5
2
3
3
6
5
10
18 x 18 x 15
18 x 18 x 15
22 x 22 x 18
22 x 22 x 18
30 x 30 x 22
30 x 30 x 22
33 x 33 x 25
33 x 33 x 25
0.10/0.15
0.10/0.15
0.15/0.22
0.15/0.22
0.15/0.22
0.22/0.22
0.22/0.22
0.47/0.47
1300
450
260
100
165
60
70
30
00
00
08
08
17
17
21
21
Technical Data linear-saturating chokes DLFP with leads connection
Type
DLFP-0125-0501
DLFP-0125-08D5
DLFP-0147-12D5
DLFP-0147-16D3
DLFP-0147-25D2
DLFP-0147-35C5
DLFP-0132-45D2
I
N
[A]
(1)
L/L at I
N
[mH]
I
true
[A]
R
cu
(2)
[mΩ]
Power loss
[W]
f
Res
[MHz]
Energy
[A
2
x mH]
Noise level
(3)
[dB µV]
Cx
[µF]
Connection
[mm]
Case
25W
25W
47W
47W
47W
47W
32W
5
8
12
16
25
35
45
1.0/0.4
0.5/0.2
0.5/0.2
0.3/0.12
0.15/0.05
0.05/0.02
0.2/0.06
5
8
12
16
25
35
45
120
54
38
25
10
5.3
6
3
3.5
5.5
6.4
6.3
6.5
12
0.8
1.32
1.16
1.69
2.5
3.5
1.1
25
32
72
79
94
61
405
54
56
60
60
60
62
55
0.047
0.1
0.1
0.22
0.47
1.5
1
∅
1.0
∅
1.25
∅
1.7
∅
1.8
∅
2.36
1.5 x 4.5
2x5
Technical Data linear-saturating chokes DLFL for PCB mounting
Type
DLFL-0125-0501
DLFL-0125-08D5
DLFL-0147-12D5
DLFL-0147-16D3
DLFL-0147-25D2
DLFL-0147-35C5
DLFL-0132-45D2
I
N
[A]
(1)
L/L ati I
N
[mH]
I
true
[A]
R
cu
(2)
[mΩ]
Power loss
[W]
f
Res
[MHz]
Energy
[A x mH]
2
Noise level
(3)
Cx
[dB µV]
[µF]
Connection Case
[mm]
5
8
12
16
25
35
45
1.0/0.4
0.5/0.2
0.5/0.2
0.3/0.12
0.15/0.05
0.05/0.02
0.2/0.06
5
8
12
16
25
35
45
120
54
38
25
10
5.3
6.0
3
3.5
5.5
6.4
6.3
6.5
12
0.8
1.32
1.16
1.69
2.5
3.5
1.1
25
32
72
79
94
61
405
54
56
60
60
60
62
55
0.047
∅
1.0
0.1
∅
1.25
0.1
∅
1.7
0.22
0.47
1.5
1
∅
1.8
∅
2.36
1.5 x 4.5
25-P
25-P
47-P
47-P
47-P
47-P
32-P
2x5
(2) Resistance @
ϑa
25°C
(3) Measured at 150 kHz according to VDE 0565, Part 2 and EN 55014 Quasi Peak.
The measuring diagram correspond to application example 3, without C
Y
capacitors.
(1)
Nominal inductance measured according to EN 138100, see introduction of this catalog, Paragraph 3.4
30
DigiKey Technology Zone
京公网安备 11010802033920号
EEWORLD
