September 2013

EMC components

World’s first chip beads able to offer effective noise suppression in the 2.5-GHz range

TDK Corporation has extended its MMZ portfolio of Gigaspira beads with the MMZ1005-V series, which features the world’s highest* impedance peak frequency in the 2.5-GHz range. The new EMC components enable, for the first time, simple and effective noise suppression of high-frequency signals above 2 GHz, as used for WLAN and LTE, for example. The new Gigaspira beads offer a high impedance of up to 3000 Ω at 2.5 GHz. The types are available in IEC case size 1005 (EIA 0402) and measure a miniature 1.0 mm x 0.5 mm x 0.5 mm. Thanks to these features the new MMZ1005-V Gigaspira beads are ideally suited for noise suppression in smartphones, tablet PCs and other mobile communication devices. Production of the new MMZ1005-V Gigaspira beads begins in September 2013.

The benchmark performance of the TDK MMZ1005-V series was made possible thanks to the use of new ferrite material. Depending on type, the new beads offer a maximum DC resistance of between 0.9 Ω and 1.6 Ω and a rated current of 150 mA to 250 mA. With the addition of the new series to the standard MMZ1005 series and the wideband MMZ1005-E Gigaspira series, TDK’s lineup of chip beads now covers an even wider range of requirements for noise suppression in signal lines.

* As of September 2013, according to TDK data

Glossary

  • Impedance peak frequency: The frequency at which the impedance of an EMC component is highest. The impedance peak frequency is typically in the range of the component’s self-resonant frequency.

Main applications

  • Smartphones, tablet PCs, and other mobile communication devices
  • Electronic devices that support LTE and WLAN (IEEE 802.11 b/n)

Main features and benefits

  • Impedance peak frequency in the 2.5-GHz range enables effective noise suppression in the high frequency range for the first time.

Key data

TypeImpedance
at 100 MHz
[Ω] ±25%
Impedance
at 1 GHz
[Ω] ±40%
Impedance
at 2.5 GHz
[Ω] typ.
DC
resistance
[Ω] max.
Rated
current
[mA] max.
MMZ1005AFZ750V7550014000.90250
MMZ1005AFZ151V150100025001.30200
MMZ1005AFZ181V180120030001.60150

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