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This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Electronic
Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper
Electronic Technologies also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been
selected, it should be tested by the user in all possible applications.
Life Support Policy: Cooper Electronic T
echnologies does not authorize the use of any of its products for use in life support devices or systems without the
express written approval of an officer of the Company
. Life support systems are devices which support or sustain life, and whose failure to per
form, when
properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injur
y to the user
.
PM-4319 3/07
© Cooper Electronic
Technologies 2007
DRA Series
High Power Density,
High Efficiency, Shielded Inductors
Magnetics Solutions
For Automotive Applications
DRA 73 series DRA 74 series
1MHz
500kHz
300kHz
2
00kHz
1
00kHz
50kHz
0.00001
0.0001
0.001
0.01
0.1
1
1
0
100
1 10 100 10
0
B
p-p (mT)
Core
L
o
ss
(W)
1
MHz
500kHz
300kHz
200kHz
100kHz
50kHz
0
.0001
0.001
0.01
0.1
1
10
100
1 10 100 1000
Bp-p (mT)
C
o
re
L
o
ss
(W)
DRA 124 series
DRA 125 series
1
MHz
500kHz
3
00kHz
2
00kHz
100kHz
5
0kHz
0
.0001
0.001
0.01
0.1
1
10
100
1000
1 10 100 1000
Bp-p (mT)
Core Loss (W)
1MHz
500kHz
300kHz
200kHz
1
00kHz
50kHz
0.0001
0.001
0.01
0.1
1
10
100
1000
1 10 100 1000
Bp-p (mT)
Core Los
s
(W)
DRA 127 series
1MHz
500kHz
300kHz
200kHz
100kHz
50kHz
0.001
0.01
0.1
1
10
100
1000
1 10 100 1000
Bp-p (mT)
Co
r
e Loss (
W)
Inductance Characteristics
