CS1831M - Common Mode Filter with ESD Protection for USB and MHL Interface


  • Large differential bandwidth > 2.5 GHz
  • High Common Mode Stop Band Attenuation:
  • > 25 dB at 700 MHz
  • > 30 dB at 800 MHz
  • ±15kV ESD protection per channel (IEC 61000-4-2Level 4, contact discharge)
  • UTDFN-8L2.00mm×3.00mm×0.55mmpackage with0.50mmlead pitch
  • RoHS-compliant, Lead-free packaging
  • Device meets MSL 1 requirements


The CS1831M is a highly integrated Common Mode Filter (CMF) providing both ESD protection and EMI common mode noise filtering for systems using high speed differential serial interfaces, such as USB2.0 and MHL(Mobile High-Definition Link).

The CS1831Mprovides EMI filtering for one differential data line pair and ESD protection for one data pair plus two inputs such as MHL Vbus & Cbus. It is supplied in a small RoHS-compliant UTDFN-8L package, with cost and space savings over discrete solutions.


  • USB2.0, MHL in Mobile Phones, Wireless Handsets and Cameras
  • MHL to USB Interface
  • High−Speed Differential Data Lines