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COMMON-MODE FILTERS FOR HIGH-SPEED DIFFERENTIAL SIGNAL LINES

2008-03-01
TDK’s family of SMD common-mode filters

TDK’s TCM series offers a variety of different types to suit all high-speed interface applications (IEEE1394 or USB 2.0). The available filters range in size from 1005 (1.0mm x 0.5mm) to 2010 (2.0mm x 1.0mm).  

By providing wide bandwidth (cutoff frequency: 3GHz) for differential mode (symmetrical interference), TCM series filters have almost no effect on high-speed differential signals and can suppress radiated emissions.

TCM1005 Type

Dimensions: 1.0mm x 0.5mm x 0.4mm (LxWxT)

Common-mode impedance (?): 35±30% to 90±20%

DC resistance (?): 1.15±30% to 2.5±30%

Rated current ldC (A): max. 0.1

TCM1210 Type

Dimensions: 1.0mm x 1.25mm x 0.6mm (LxWxT)

Common-mode impedance (?): 35±30% to 300±20%

DC Resistance (?): 0.7±30% to 2.5±30%

Rated Current ldC (A): max. 0.1

TCM1608 Type

Dimensions: 1.6mm x 0.8mm x 0.4mm (LxWxT)

Common-mode Impedance (?): 35±30% to 200±20%

DC Resistance (?): 0.85±30% to 3.0±30%

Rated Current ldC (A): max. 0.1-0.05

TCM2010 Type

Dimensions: 2.0mm x 1.0mm x 0.8mm (LxWxT)

Common-mode Impedance (?): typ. 65-260

DC resistance (?): max. 1.5 to ± 5.0

Rated Current ldC (A): max. 0.1 to 0.04



P08
Imp_1_2008_P08_TDK_Common_1005_Bild1.jpg
Fig.3: TCM1608 TYPE
Imp_1_2008_P08_TDK_Common_1210_Bild2.jpg
Fig.4: TCM2010 TYPE
Imp_1_2008_P08_TDK_Common_1608_Bild3.jpg
Abb.3: TCM1608 TYPE
Imp_1_2008_P08_TDK_Common_2010_Bild4.jpg
Abb.4: TCM2010 TYPE

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