Visit us on the Web at www.cooperbussmann.com

1225 Broken Sound Pkwy. Suite F

Boca Raton, FL 33487

Tel: +1-561-998-4100 Toll Free: +1-888-414-2645 Fax: +1-561-241-6640

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 Technologies 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 perform, when

properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury 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

200kHz

100kHz

50kHz

0.00001

0.0001

0.001

0.01

0.1

1

10

100

1

10

100

100

Bp-p (mT)

1MHz

500kHz

300kHz

200kHz

100kHz

50kHz

0.0001

0.001

0.01

0.1

1

10

100

1

10

100

1000

Bp-p (mT)

DRA 124 series

DRA 125 series

1MHz

500kHz

300kHz

200kHz

100kHz

50kHz

0.0001

0.001

0.01

0.1

1

10

100

1000

1

10

100

1000

Bp-p (mT)

1MHz

500kHz

300kHz

200kHz

100kHz

50kHz

0.0001

0.001

0.01

0.1

1

10

100

1000

1

10

100

1000

Bp-p (mT)

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)

Inductance Characteristics