Storage Chokes
DS
Series, in encapsulated version
Nominal current:
Nominal inductance:
Max. working voltage:
Application range:
Isolation voltage:
Climatic category:
Plastic case
Potting resin:
0.5 - 6 A @
ϑ
a 70°C
35 - 1000 µH/ tol.
±
15%
600 VDC
up to 1 MHz
2 kV eff. / wdg.-ambient
40/125/21 acc. to IEC 60068-1
UL 94 V-0
UL 94 V-0
Application
Storage chokes, wound on powdered MPP core, specially qualify for use
as storage of energy in switched power supplies (switching mode
regulators). Switched power supplies allow small size with high efficiency
and stabilized output voltage. Most important features of this line of
chokes are the following:
•
reduced magnetic reversal
•
small size
•
constant inductance at high alternating field modulation and large
DC magnetization.
Execution
Storage chokes of series DS are encapsulated into a plastic cases.
Technical Data
Type
DS1-17.5-0.5-800/a
DS1-17.5-0.63-500/a
DS1-17.5-1.0-200/a
DS1-17.5-1.4-100/a
DS1-17.5-3.0-35/a
DS1-20-0.63-1000/a
DS1-20-1.4-200/a
DS1-20-3.15-40/a
DS1-25-1.4-500/a
DS1-25-2.0-200/a
DS1-25-3.15-100/a
DS1-30-3.15-150/a
DS1-30-4-100/a
DS1-40-4.0-200/a
DS1-40-6.0-100/a
DS1-48-3.15-1000/a
DS1-48-4-500/a
I
N
(1)
[A]
L
N
(2)
[µH]
R
cu
(3)
[mΩ]
[MHz]
~ f
Res
∆L
[%]
L
at I
N
< 15
< 15
< 15
< 20
< 20
< 15
< 15
< 15
< 20
< 20
< 20
< 15
< 20
< 20
< 20
< 20
< 20
Cases
L x D x H [mm]
Grid
I x b [mm]
Connection pins
∅
[mm]
t [mm]
0.5
0.63
1.0
1.4
3.0
0.63
1.4
3.15
1.4
2.0
3.15
3.15
4.0
4.0
6.0
3.15
4.0
800
500
200
100
35
1000
200
40
500
200
100
150
100
200
100
1000
500
700
500
180
80
26
700
175
26
200
100
40
55
36
55
26
160
80
2
2.5
5
6.5
11
1.2
4
10
1
3.5
5.7
4.5
6
3
4.5
1
1.5
17.5 x 16.5 x 10.5
17.5 x 16.5 x 10.5
17.5 x 16.5 x 10.5
17.5 x 16.5 x 10.5
17.5 x 16.5 x 10.5
20.0 x 20.0 x 15.0
20.0 x 20.0 x 15.0
20.0 x 20.0 x 15.0
25.0 x 25.0 x 15.0
25.0 x 25.0 x 15.0
25.0 x 25.0 x 15.0
30.0 x 30.0 x 15.0
30.0 x 30.0 x 15.0
40.0 x 40.0 x 20.0
40.0 x 40.0 x 20.0
48.0 x 48.0 x 25.0
48.0 x 48.0 x 25.0
15.0 x 12.5
15.0 x 12.5
15.0 x 12.5
15.0 x 12.5
15.0 x 12.5
15.0 x 15.0
15.0 x 15.0
15.0 x 15.0
20.0 x 20.0
20.0 x 20.0
20.0 x 20.0
22.5 x 22.5
22.5 x 22.5
32.5 x 32.5
32.5 x 32.5
37.5 x 37.5
37.5 x 37.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.7
1
1
1
1
1
1.5
1.5
1.5
1.5
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
(1)
@
ϑa
70°C; current derating over 70°C: I = I
N
x
(3)
Resistance @
ϑa
25°C
(125-ϑa)/55
(2)
Nominal inductance measured according to EN 138100, see introduction of this catalog, paragraph 3.4
All types are also available in open version, DSO1 with relative mounting accessories see page 23.
Mechanical dimensions DS1
Application Switch-mode
33
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