Noise management technology focusing on EMC (Electro Magnetic Compatibility) is extremely important in order to effectively control EMI (Electro Magnetic Interference) and improve EMS (Electro Magnetic Susceptibility).
Murata meets the demands for noise countermeasure solutions for various applications, made possible through their vast experiences in the field coupled with the use of design support simulation software, enabling them to provide comprehensive support for their products.
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Lineup
Chipped ferrite beads BL series
Inductor-type EMI suppression filters that are effective from several MHz to several GHz. As a general-purpose noise suppression component, they can be widely used for relatively mild noise suppression. Inductor-type EMIFIL behaves as a small inductance inductor at low frequencies, but generates impedance mainly consisting of resistance components at high frequencies. When inserted in series in the noise conduction path, this resistance component blocks and absorbs noise conductions.
Chip EMIFIL (3 terminal low ESL chip multilayer ceramic capacitor/LC composite type/Application-specific EMI filter) NF series
Inductor-type EMI suppression filters that are effective from several MHz to several GHz. As a general-purpose noise suppression component, they can be widely used for relatively mild noise suppression. Inductor-type EMIFIL behaves as a small inductance inductor at low frequencies, but generates impedance mainly consisting of resistance components at high frequencies. When inserted in series in the noise conduction path, this resistance component blocks and absorbs noise conductions.
Common mode choke coil/ common mode noise filter DL /PL /NFP series
Common Mode Choke Coils (CMCC) reduces the common mode noise that is problematic in differential transmission (ex. USB/HDMI/Mipi etc.), balanced transmission, power supply lines, and audio lines. They are ideal for suppressing common mode noise with frequencies ranging from several MHz to several hundred MHz with no adverse effect on the signals (upper cut-off frequency).
You can also search for products from the series lineup and from applications.
Lead type EMIFIL BL0/DSS1/VFC/PLT09 series
Murata offers a variety of lead type EMI suppression filters including: inductor type operating from several MHz to several GHz, capacitor type achieving a great noise suppression effect at frequencies between several MHz and several hundred MHz, and common mode choke coils ideal for noise suppression in DC power supply lines, video and sound signal lines, and balanced transmission interface cables. They can be widely used as high-performance general-purpose EMI suppression filters.
Block type EMIFIL BNX series
Noise suppression across a wide frequency band is possible in high current environments with a single product. They are ideal for noise suppression in DC power lines and can also be used for FA equipment and communication devices.
Audio line noise filter NFZ_S series/LQW_CA series
The NFZ series of noise filters for audio lines were developed as filters that combine noise suppression and audio quality.
These filters provide Class D amp noise suppression, high frequency isolation, and TDMA noise suppression while maintaining audio quality in speaker and earphone lines.Signal noise suppression parts selection
Selection guide for Chip Ferrite Beads and Chip EMIFIL
Audio line noise filter selection guide
Noise suppression categories Noise filter for audio line Earphones Speakers Noise frequency~1GHz NFZ18SM_10 1608 NFZ2MSM_10 2016 NFZ32SW_10 3225 1GHz~ NFZ03SG_10 0603 NFZ15SG_11 1005 NFZ15SG_10 1005 
Chip common mode choke coil selection guide
Noise suppression categories DC power line High-speed differential transmission line Voice line High-speed transmission line
(USB2.0 / LVDS / IEEE1394 / mipi etc.)Ultra high-speed differential transmission line
(HDMI / DVI / DisplayPort / USB3.0 etc.)DLW44S 4040 DLM0QSN 0605 NFP0QHB 0605 DLM11G 1210 DLW5AH 5036 DLM0NSN 0806 NFP0QSB 0605 DLW5AT 5036 DLW5AT 5036 DLM11S 1210 DLM0QSB 0605 DLW5BT 5050 DLW5BS 5050 DLP0NSC 0806 DLP0QSA 0605 DLW5BT 5050 DLP0NSN 0806 DLM0NSB 0806 DLP11SN 1210 DLP0NSA 0806 DLP11RN 1210 DLP11SA 1210 DLW21H 2012 DLP11RB 1210 DLW21S_S 2012 DLP11TB 1210 DLW21S_X 2012 DLW21SN_HQ 2012 DLP31S 3216 DLW21SR_HQ 2012 DLW31S 3216 mipi c-phy(3Line)
対応NFG0NCN162HL3 0806 Large current type Array type PLT10HH
12.9×6.6DLP1ND 1506 DLP2ADA 2010 PLT5BPH 5050 DLP2ADN 2010 DLP31D 3216 
LED noise filter selection guide
Noise suppression categories Noise filter for LED lighting Noise frequency~1GHz NFZ2HBM_10 2520 NFZ32BW_11 3225 NFZ32BW_10 3225 NFZ5BBW_10 5050