EMI Suppression Filters (EMC and Noise Suppression) Internal interference noise suppression solutions for smartphones: EMI suppression filters

This article introduces BLF series frequency specified filters and NFP series common mode noise filters.

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Use of EMI suppression filters prevents a drop in reception sensitivity

Noise reduction effects can be expected by using EMI suppression filters.

Applicable series

  • Noise filters specialized for noise suppression performance in the 700 MHz and 2.4 GHz carrier frequency bands

Frequency specified filters
BLF series

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Chip size Part number Target frequency Impedance
@ target frequency 
0402mm
01005inch
BLF02JD361GNE 700MHz 360Ω
BLF02JD471GNE 470Ω
BLF02RD331GNE 2.4GHz 330Ω
BLF02RD471GNE 470Ω
0603mm
0201inch
BLF03JD421GNE 700MHz 420Ω
  • Effective suppression of common mode noise without impacting differential signals
  • Ideal for high-speed differential transmission lines such as MIPI and USB interfaces

Common mode filter
NFP series

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Chip size Part number Target frequency 
0605mm
025020inch
NFP0QHB242HS2 8.5GHz (Typ.)
NFP0QHB372HS2 10GHz (Typ.)
NFP0QHB542HS2 10GHz (Typ.)