Würth Elektronik WE-CCMF ceramic common mode filter
Würth Elektronik’s WE-CCMF is a compact multilayer common mode choke in a 0504 package, characterised by high common mode attenuation in the Wi-Fi frequency range (>30 dB @ 2450 MHz). It can be used to improve the sensitivity of wireless LAN and Bluetooth-enabled devices (notebooks, laptops, routers, IoT devices) that also include interfaces with high-speed push-pull signal transmission. These devices include USB 3.1/3.2, SATA 3.0/3.2, HDMI 1.4/2.0 or Thunderbolt 2/3.
The high switching frequency of state-of-the-art data lines has made common mode interference a problem in radio reception. The ceramic common mode choke WE-CCMF achieves good attenuation in just this 2.45 GHz range, with its LTCC design said to ensure low losses.
The reflow solderable SMT component has high temperature stability and is suitable for operating temperatures from -40 to +85°C. The push-pull cut-off frequency of the choke is 8 GHz.
Phone: 03 8669 0610
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