Document 139-1
Output Power Chokes – Toroid Styles
The DMT power inductors are designed primarily for
use as output chokes in switching power supplies. The
toroid core design offers the highest inductance values
in the smallest part size, while minimizing external
magnetic fields.
Inductance values range from 7 µH to over 1.4 mH with
current ratings as high as 12 Amps.
These parts are ideal for any application requiring a
high DC current bias. They are well suited for use in
switch-mode power supplies and can be used as ripple
filters and differential mode EMI filters.
• All insulating materials 130°C or higher.
• Industry standard footprint.
• UL 1446 approved Insulation System available.
• All plastic material UL94V-0.
Recommended
Board Layout
4
H max
Y
1
1
Z
2
2
4
Z
V
Schematic
1
2
X
0.063
1,6
4
2
for mounting
stability
0.052
1,32
L max
0.120/0.180
3,05/4,57
0.052
1,32
W max
Terminations:
Tin-silver over copper
Weight
DMT1 Series:
13.0 – 16.4 g
DMT2 Series:
48.7 – 56.3 g
DMT3 Series:
90.2 – 100.5 g
DMT1 Series
Part
number
DMT1-180-1.5L
DMT1-84-2.4L
DMT1-43-3.8L
DMT1-26-5.1L
DMT1-16-6.7L
DMT1-7-10L
L
1
min
(µH)
180
84
43
26
16
7
Current
rating
(A)
1.5
2.4
3.8
5.1
6.7
10.0
DCR
max
(Ohms)
0.29
0.14
0.07
0.04
0.02
0.01
H
max
1.1/27,9
1.1/27,9
1.1/27,9
1.1/27,9
1.1/27,9
1.1/27,9
L
max
1.3/33,0
1.3/33,0
1.3/33,0
1.3/33,0
1.3/33,0
1.3/33,0
W
max
0.7/17,8
0.7/17,8
0.7/17,8
0.7/17,8
0.7/17,8
0.7/17,8
X
±0.01/0,25
0.80/20,3
0.80/20,3
0.80/20,3
0.80/20,3
0.80/20,3
0.80/20,3
Y
±0.01/0,25
0.40/10,2
0.40/10,2
0.40/10,2
0.40/10,2
0.40/10,2
0.40/10,2
Z
pins 1 & 4
0.052/1,32
0.052/1,32
0.052/1,32
0.052/1,32
0.041/1,04
0.052/1,32
V
pins 1 & 4
0.063/1,60
0.063/1,60
0.063/1,60
0.063/1,60
0.052/1,32
0.063/1,60
1. Minimum inductance at rated current. Tested at 15.75 kHz, 10 Gauss level.
2. Operating temperature range –40°C to +85°C.
3. Electrical specifications at 25°C.
Specifications subject to change without notice.
Please check our website for latest information.
Document 139-1
Revised 07/31/07
© Coilcraft, Inc. 2009
COILCRAFT [ Coilcraft lnc. ]
