NT2012 Series
WIREWOUND COMMON MODE FILTER
DESCRIPTION
The TOKO NT2012 is a wirewound miniature common mode filter specifically designed to eliminate common mode noise in USB 2.0, IEEE1394, LVDS, DVI, and HDMI applications. A dual winding configuration in a tight form factor provides exceptional EMI reduction in space-constrained environments.
FEATURES
Miniature footprint: 2.0 x 1.2mm Low profile: 1.3mm max. Operating temperature: -30°C to +85°C Packaged on 2000 piece reels Reflow solderable
DIMENSIONS
1.3 max.
0.6 max .
1.2±0.2
UNITS: mm
SIDE VIEW
2.0±0.2
0.4 typ. 0.4 typ. 0.4 typ. 0.45 typ. 1.1±0.2
1 3
6 4
0.9 0.8 0.9
0.4 0.4 0.4
BOTTOM VIEW
PINOUT (TOP VIEW)
RECOMMENDED PATTERN
ELECTRICAL SPECIFICATIONS
TOKO Part No. 985DH-1022=P2 985BH-1007=P2 985DH-1023=P2 985AH-1001=P2 985DH-1024=P2 985DH-1025=P2 985DH-1026=P2 Common Mode Impedance (Ω) typ. 10MHz 100MHz 7 67 10 90 14 120 18 165 18 180 28 260 38 370 Common Mode Attenuation (dB) 10MHz 100MHz 500MHz 1.0 max. 5.0 max. 5.0 min. 1.0 max. 1.5 min. 8.0 min. 1.0 max. 2.0 min. 7.0 min. 1.2 max. 4.0 min. 11.0 min. 1.2 max. 3.0 min. 10.0 min. 1.5 max. 6.0 min. 14.0 min. 2.0 max. 6.5 min. 15.0 min. IDC (A) max. 0.42 0.33 0.37 0.33 0.33 0.31 0.28 DCR (Ω) max. 0.16 0.26 0.21 0.26 0.26 0.31 0.36
Note: "=P2" is added to each part number to indicate tape and reel packaging.
APPLICATION EXAMPLES
VCC
USB 2.0
VCC
IEEE1394
NT2012
TPA +
D-
USB Connector
NT2012
TPA -
D+
ESD ESD
NT2012
TPA +
TPA -
September 2003
2003 TOKO America, Inc. All Rights Reserved Printed in USA CF-212-NT2012
IEEE 1394 Connector
1
NT2012 Series
WIREWOUND COMMON MODE FILTER
TYPICAL CHARACTERISTICS
Impedance Response of 985DH-1022
10000
Attenuation Characteristics of 985DH-1022
5 0 -5 -10 -15 -20 -25 -30 -35 -40 1 10
Impedance (Ω )
1000 100 10 1 0.1 1 10 100 Common Mode Normal Mode 1000 10000
Attenuation (dB)
Common Mode Normal Mode 100 1000 10000
Frequency (MHz)
Frequency (MHz)
Impedance Response of 985BH-1007
10000 5 0 -5 -10 -15 -20 -25 -30 -35 -40
Attenuation Characteristics of 985BH-1007
Impedance (Ω )
1000 100 10 1 0.1 1 10 100 Common Mode Normal Mode 1000 10000
Attenuation (dB)
Common Mode Normal Mode 1 10 100 1000 10000
Frequency (MHz)
Frequency (MHz)
Impedance Response of 985DH-1023
10000 5 0 -5 -10 -15 -20 -25 -30 -35 -40
Attenuation Characteristics of 985DH-1023
Impedance (Ω )
1000 100 10 1 0.1 1 10 100 Common Mode Normal Mode 1000 10000
Attenuation (dB)
Common Mode Normal Mode 1 10 100 1000 10000
Frequency (MHz)
Frequency (MHz)
September 2003
2003 TOKO America, Inc. All Rights Reserved Printed in USA CF-212-NT2012
2
NT2012 Series
WIREWOUND COMMON MODE FILTER
Impedance Response of 985AH-1001
10000 5 0 -5 -10 -15 -20 -25 -30 -35 -40 1 10
Attenuation Characteristics of 985AH-1001
Impedance (Ω )
1000 100 10 1 0.1 1 10 100 Common Mode Normal Mode 1000 10000
Attenuation (dB)
Common Mode Normal Mode 100 1000 10000
Frequency (MHz)
Frequency (MHz)
Impedance Response of 985DH-1024
10000
Attenuation Characteristics of 985DH-1024
5 0 -5 -10 -15 -20 -25 -30 -35 -40 1 10
Impedance (Ω )
1000 100 10 1 0.1 1 10 100 Common Mode Normal Mode 1000 10000
Attenuation (dB)
Common Mode Normal Mode 100 1000 10000
Frequency (MHz)
Frequency (MHz)
Impedance Response of 985DH-1025
10000
Attenuation Characteristics of 985DH-1025
5 0 -5 -10 -15 -20 -25 -30 -35 -40 1 10
Impedance (Ω )
1000 100 10 1 0.1 1 10 100 Common Mode Normal Mode 1000 10000
Attenuation (dB)
Common Mode Normal Mode 100 1000 10000
Frequency (MHz)
Frequency (MHz)
September 2003
2003 TOKO America, Inc. All Rights Reserved Printed in USA CF-212-NT2012
3
NT2012 Series
WIREWOUND COMMON MODE FILTER
Impedance Response of 985DH-1026
10000 5 0 -5 -10 -15 -20 -25 -30 -35 -40
Attenuation Characteristics of 985DH-1026
Impedance (Ω )
1000 100 10 1 0.1 1 10 100 Common Mode Normal Mode 1000 10000
Attenuation (dB)
Common Mode Normal Mode 1 10 100 1000 10000
Frequency (MHz)
Frequency (MHz)
TEST CONDITIONS
Impedance vs. Frequency
TES T CIRCUIT (COMMON MODE )
1 6
50Ω
Attenuation vs. Frequency
TE S T CIRCUIT (COMMON MODE )
IN
1
6
OUT 50Ω
3
4
3
4
TEST EQUIPMENT: 8753D (HP)
E4991A (Agilent)
TE S T CIRCUIT (NORMA L MODE )
1 6
50Ω
TES T CIRCUIT (NORMAL MODE )
IN
1
6
50Ω
3
4
OUT
3
4
TEST EQUIPMENT: 8753D (HP)
E4991A (Agilent)
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
2003 TOKO America, Inc. All Rights Reserved Printed in USA CF-212-NT2012
4
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