Linear Chokes
DLF
Series, flat housing
Nominal current:
Nominal inductance:
Max. working voltage:
Application range:
Isolation voltage:
Climatic category:
Plastic case:
Potting resin:
0.6 - 7 A @
ϑ
a 70°C
15 - 3000
µ
H/tol. ± 15%
600 VDC
up to 20 kHz
2 kV eff. / wdg.-ambient
40/125/21 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).
This range of chokes enables horizontal mounting, thus reducing the height
of the mounted circuit. Finest quality core materials allow the highest
electrical performance with minimum component volume. Good design
with easy assembly allows good cost/performance ratios.
This type of choke is essential in the field of power electronics, e.g. switching
power supplies, chopper amplifiers, DC drives and stepper motor controls.
DLF
Linear chokes are mainly used as smoothing or RFI suppres-
sion circuits.
Environmental Ratings:
The
DLF chokes
can only be used with direct current or with low
frequency alternating current (max. 400 Hz) and up to max I
N
•
1.1.
They operate only as attenuation devices for HF-interference with
reduced amplitude (DI << I
N
) up to the range of their self-reso-
nance (∼f
Res
).
SMD-version upon request.
Technical Data
Type
DLF1-18-0.6-650/a
DLF1-18-1.5-110/a
DLF1-18-4.0-15/a
DLF1-28-0.6-3000/a
DLF1-28-1.0-1000/a
DLF1-28-1.5-500/a
DLF1-28-3.0-100/a
DLF1-28-7.0-20/a
I
N
(1)
[A]
L
N
(2)
[µH]
R
cu
(3)
[mΩ]
[MHz]
∼
f
Res
Case
04-1
04-1
04-1
15-1
15-1
15-1
15-1
15-1
0.6
1.5
4.0
0.6
1.0
1.5
3.0
7.0
650
110
15
3000
1000
500
100
20
690
150
17
1700
550
270
70
13
1
8
28
0.3
0.8
1.2
7.5
20
(125-ϑa)/55
(1)
@
ϑa
70°C; current derating over 70°C: I = I
N
x
(2)
Nominal inductance measured according to EN 138100,
(3)
Resistance @
ϑa
25°C
see introduction of this catalog, paragraph 3.4
Typical curves
Application
Case 04-1
Case 15-1
20