Noise filters for audio lines

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.

 

Audio line noise suppression for smart phones(1) Problems Audio line noise suppression for smart phones (2) Countermeasures Audio line noise suppression for home audio (1) Audio line Audio line noise suppression for home audio (2) Power supply line

Murata Icon X Audio line filter product list

1. Communication frequency noise suppression for smart phones

NFZ03SG series
Product name
Impedance
at900MHz(Ω)
Impedance
at1.7GHz(Ω)
DC resistance(Ω)
Rated current
(A)
Product size
(max. height)
(mm)
Typ.
Min.
Typ.
Typ.
NFZ03SG331SN10
330
200 400
0.46 0.305
0.6x0.3
(0.33)
NFZ03SG501SN10
500 300 600 0.56 0.275
NFZ03SG671SN10
670 400 800 0.69 0.25
NFZ03SG102SN10
1000 600 900 1.00 0.21
NFZ03SG162SN10
1600 960
1200 1.30 0.18
NFZ15SG series
Product name
Impedance
at900MHz(Ω)
Impedance
at1.7GHz(Ω)
DC resistance(Ω)
Rated current
(A)
Product size
(max. height)
(mm)
Typ.
Min.
Typ.
Typ.
NFZ15SG101SN11
100 70 160 0.07 1.1
1.0x0.5
(0.55)
NFZ15SG151SN11
150 100 250 0.09 1.0
NFZ15SG331SN11
330 230 540 0.2 0.65
NFZ15SG771SN10
770 530 900 0.35 0.5
NFZ15SG152SN10
1500 1000 1200 0.55 0.4
NFZ15SG262SN10
2600 1800 1450 0.8 0.35
NFZ15SG462SN10
4600 2800 1800 1.25 0.27
Class D amp harmonic noise suppression
Product name
Impedance
at100MHz(Ω)
DC resistance(Ω)
Rated current(A)
Product size
(max. height)
(mm)
Typ.
85℃
125℃
NFZ18SM121SN10
120±25%
0.11 1.25 1.1
1.6x0.8
(0.95)
NFZ18SM251SN10
250±25%
0.15
1.1 1.0
NFZ18SM501SN10
500±25%
0.2 0.95 0.85
NFZ18SM701SN10 700±25%
0.23 0.8 0.8

2. Noise suppression in high output audio

NFZ2MSD series (currently under development as of November 2017)

Product name
Impedance
at10MHz(Ω)
DC resistance
(Ω)
Rated current(A)
Product size
(max. height)
(mm)
Max
NFZ2MSD100SN10
10±25%
18 5.2
2.0x1.6
(1.2)
NFZ2MSD150SN10
15±25%
23 4.4
NFZ2MSD200SN10
20±25%
28 3.9
NFZ2MSD300SN10
30±25%
33 3.7
NFZ2MSD600SN10
60±25%
54 2.7
NFZ2MSD900SN10
90±25%
95 2
NFZ2MSD131SN10
130±25%
144 1.5

NFZ2MSM series

Product name
Impedance
at100MHz(Ω)
DC resistance(Ω)
Rated current(A)
Product size
(max. height)
(mm)
Max
NFZ2MSM101SN10
100±25%
0.018 4
2.0x1.6
(1.0)
NFZ2MSM181SN10
180±25%
0.025
3.4
NFZ2MSM301SN10
300±25%
0.03 3.1
NFZ2MSM601SN10 600±25%
0.046 2.5

NFZ32SW series

Product name
Impedance
at1MHz(Ω)
Impedance
at100MHz
DC resistance(Ω)
Rated current
(A)
Product size
(max. height)
(mm)
Typ.
Max
NFZ32SW301HN10
3.2±30%
300 0.036 2.55
3.2x2.5
(1.55)
NFZ32SW901HN10
6.8±30%
900
0.054 2.05




Audio line noise suppression for smart phones(1) Problems Audio line noise suppression for smart phones (2) Countermeasures Audio line noise suppression for home audio (1) Audio line Audio line noise suppression for home audio (2) Power supply line