Product Name : CMF (common mode filter) for USB 3.0 or higher speed interface’s GHz noise suppression

Model : CMF

Compact Common-Mode Filter(CMF)

CMF-2012 is ceramic multi-layer common-mode filter and developed for high speed differential signal interfaces such as HDMI, USB3.0, SATA 3.0, or Thunderbolt.
The cut-off frequency of CMF-2012 for differential mode is above 8 GHz and therefore high-speed differential signal integrity is not degraded.
The common-mode noise is reduced about 32 dB at 2.45 GHz, which covers WiFi frequency band.
EMI/RFI common mode noise suppression on High-speed differential interface, such as HDMI, USB 3.0, SATA 3.0, Thunderbolt etc.


(1) Symbol of Product
(2) Dimensions
(3) Frequency Range
(4) Common Mode Attenuation
(5) Tape and Reel



Shapes and Dimensions (mm)


Recommended PCB Patterns(mm)

UNIT : mm(inch)
Ordering Code Common mode Insertion Loss (Scc21) @2.45GHz Cut off Frequency
Rated Voltage Withstanding Voltage Rated Current DC Resistance Insulation Resistance Series Spec.
CMF-2012-2G45-32T 25dB (min.) 8GHz
400mA 1.6Ω
100MΩ (min.)
CMF-2012-5G-35T 30dB (min.) 10GHz
500mA 1.0Ω
100MΩ (min.)




1. Other sizes are available upon request.
2. All the data listed in this catalogue are for reference only; King Core reserves
   the right to alter or revise the specifications without prior notification.