NT2012 Series

WIREWOUND COMMON MODE FILTER

Impedance Response of 985DH-1026

0.1

1

10

100

1000

10000

1

10

100

1000

10000

Frequency (MHz)

Common Mode

Normal Mode

Attenuation Characteristics of 985DH-1026

-40

-35

-30

-25

-20

-15

-10

-5

0

5

1

10

100

1000

10000

Frequency (MHz)

Common Mode

Normal Mode

TEST CONDITIONS

Impedance vs. Frequency

Attenuation vs. Frequency

TEST CIRCUIT (COMMON MODE)

E4991A (Agilent)

3

4

1

6

E4991A (Agilent)

3

4

1

6

TEST CIRCUIT (NORMAL MODE)

3

4

1

6

IN

OUT

TEST CIRCUIT (COMMON MODE)

50

Ω

TEST EQUIPMENT: 8753D (HP)

50

Ω

3

4

1

6

IN

OUT

TEST CIRCUIT (NORMAL MODE)

50

Ω

TEST EQUIPMENT: 8753D (HP)

50

Ω

The information furnished by TOKO, Inc., is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification, or

manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for infringements of

patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.

TOKO America, Inc.

1250 Feehanville Drive, Mt. Prospect, IL 60056

Tel: 800-PIK-TOKO or 847-297-0070 Fax: 847-699-7864 Web: http:// www.tokoam.com

September 2003

4

 2003 TOKO America, Inc.

CF-212-NT2012

All Rights Reserved

Printed in USA