Noise filter for PoE

Common Mode Choke (CMC) reduce common mode noise in signal interfaces and  power supply lines including PoE.

They are good for noise frequency from MHz to GHz without signal damage.

[Power line] 

DLW5B series (5.0 x 5.0mm)
  Rated current: 500mA - 6A
  Common mode Impdedance: 100 - 3000ohm @100MHz
PLT series (5.0 x 5.0mm, 12.9 x 6.6mm)
  Rated current: 3.1A - 18A
  Common mode Impedance: 45 - 1000ohm @10MHz

[Signal line] Ethernet, USB2, USB3, MIPI, HDMI etc

DLW21SN series (2.0 x 1.2mm)
  Good for MHz noise
  Common mode Impdedance: 67 to 920ohm @100MHz
NFG0QH series (0.65 x 0.5mm)
  Good for GHz noise to slove RF de-sense issue
  Common mode Insertion loss peak at 2.4G, 3.7G, 5.4GHz

Features

• SMD
• Automation product
• High performance with compact size

Applications

• Security camera
• Doorbell
• Router
• PoE Switch

Key components

• DLW5B series
• PLT series
• DLW21SN series
• NFG0QH series

Benefits

• SMD
• Automation product
• Compact size

Block diagram

Security camera block diagram and example of noise filter use in PoE