Signal Filters

A Signal Filter is a passive component, which allows specific frequency bands to pass and reject other electrical signals, mainly for noise reduction. The design integrates multilayer ceramic capacitors, inductors, dielectric resonators and crystals.
The Filter finds use in circuits of audio, video, broadband and communication equipment. Electronic signal processing filter is described to be linear or non-linear, analogue or digital, shift invariance, passive or active circuit.

The filter frequency response can be classified as:

  • high-pass
  • low-pass
  • band-pass
  • band-stop
  • notch
  • all-pass filter
  • cut-off frequency.

The order of a filter refers to the slope of the transition to roll-off around the cut-off frequency. A first-order filter responds at -6 dB per octave, a second-order filter decreases at -12 dB, a third-order at -18 dB, on a logarithmic scale. The analogue filter in a linear design of a network synthesis type is known as the Butterworth filter, Chebyshev filter, Elliptic filter, Bessel filter and Gaussian filter.

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Filters

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Description Price Series Maximum Current Rating Maximum Voltage Rating Mounting Type Operating Frequency Termination Style Package/Case Dimensions Depth Height Length Maximum Operating Temperature Minimum Operating Temperature Capacitance
RS stock no. 839-1036
Mfr. Part No.NFM18PC225B1A3D
BrandMurata
R 3.746
Each (In a Bag of 10)
units
NFM18PC 4A 10 V dc Surface Mount - Flat Contact 0603 (1608M) 1.6 x 0.8 x 0.8mm 0.8mm 0.8mm 1.6mm +85°C -40°C -
RS stock no. 166-9589
Mfr. Part No.NFM21PC225B0J3D
BrandMurata
R 5,790.20
1 Reel of 4000
Reel(s)
NFM21PC 4A 6.3 V dc Surface Mount - Flat 0805 (2012M) 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +85°C -40°C 2.2µF
RS stock no. 741-6988
Mfr. Part No.ACF321825-103-T
BrandTDK
R 4.322
Each (In a Pack of 5)
units
ACF 300mA 20 V Surface Mount 60MHz Solder Pad ACF321825 3.2 x 2.5 x 1.8mm 2.5mm 1.8mm 3.2mm +85°C -25°C -
RS stock no. 163-7493
Mfr. Part No.748111009
R 67,764.69
1 Reel of 4000
Reel(s)
WE-LPF - - Surface Mount 902 → 928MHz Solder Pad - 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +85°C -40°C -
New
RS stock no. 188-8847
Mfr. Part No.2337824-4
R 180.91
Each (On a Reel of 350)
units
- - - - - - - - - - - - - -
RS stock no. 741-7048
Mfr. Part No.ACF451832-330-T
BrandTDK
R 4.616
Each (In a Pack of 5)
units
ACF 300mA 50 V ac/dc Surface Mount 550MHz Solder Pad - 4.5 x 3.2 x 1.8mm 3.2mm 1.8mm 4.5mm - - -
RS stock no. 163-7494
Mfr. Part No.748121055
R 90,489.88
1 Reel of 4000
Reel(s)
WE-LPF - - Surface Mount 5150 → 5875MHz Solder Pad - 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +85°C -40°C -
RS stock no. 741-7004
Mfr. Part No.ACF321825-331-T
BrandTDK
R 2.97
Each (In a Pack of 5)
units
ACF 300mA 20 V Surface Mount 210MHz Solder Pad ACF321825 3.2 x 2.5 x 1.8mm 2.5mm 1.8mm 3.2mm +85°C -25°C -
RS stock no. 167-4999
Mfr. Part No.BNX028-01L
BrandMurata
R 54.415
Each (On a Reel of 400)
units
BNX02 15A 16 V dc Surface Mount 1GHz Solder - 12.1 x 9.1 x 3.5mm 9.1mm 3.5mm 12.1mm +105°C -40°C 47µF
RS stock no. 725-7449
Mfr. Part No.NFM3DPC223R1H3L
BrandMurata
R 5.992
Each (In a Pack of 10)
units
NFM3DP 2A 50 V dc Surface Mount - Solder Pad - 3.2 x 1.25 x 0.7mm 1.25mm 0.7mm 3.2mm +125°C -55°C -
RS stock no. 725-7436
Mfr. Part No.NFM3DCC221R1H3L
BrandMurata
R 7.851
Each (In a Pack of 10)
units
NFM3DC 300mA 50 V dc Surface Mount - Solder Pad - 3.2 x 1.25 x 0.7mm 1.25mm 0.7mm 3.2mm +125°C -55°C -
RS stock no. 169-2684
Mfr. Part No.DSS6NC52A271Q55B
BrandMurata
R 4.589
Each (In a Bag of 250)
units
DSS6 6A 100 V dc Through Hole - Radial - 8 x 2.54 x 7mm 2.54mm 7mm 8mm +85°C -25°C -
RS stock no. 106-5391
Mfr. Part No.NFA18SL227V1A45L
BrandMurata
R 7.189
Each (In a Pack of 20)
units
NFA18SL 25mA 10 V dc Surface Mount - Solder 0603 (1608M) 1.6 x 0.8 x 0.6mm 0.8mm 0.6mm 1.6mm +85°C -40°C 27µF
RS stock no. 170-6596
Mfr. Part No.0805Y0500473MXTE07
R 18,385.35
1 Reel of 3000
Reel(s)
E07 2A 50 V dc Surface Mount 34MHz Solder Pad 0805 (2012M) 2 x 1.25 x 1mm 1.25mm 1mm 2mm +125°C -55°C -
RS stock no. 105-978
Mfr. Part No.NFM18PC105R0J3D
BrandMurata
R 2.704
Each (In a Bag of 25)
units
NFM18C 2A 6.3 V dc Surface Mount - Solder Pad 0603 (1608M) 1.6 x 0.8 x 0.8mm 0.8mm 0.8mm 1.6mm +105°C -55°C -
RS stock no. 839-1008
Mfr. Part No.NFE61PT330B1H9L
BrandMurata
R 9.122
Each (In a Bag of 5)
units
NFE61PT 2A 50 V dc Surface Mount - Flat Contact 2706 (6816M) 6.8 x 1.6 x 1.6mm 1.6mm 1.6mm 6.8mm +85°C -40°C -
RS stock no. 878-7935
Mfr. Part No.BNX026H01L
BrandMurata
R 108.07
Each
units
BNX02 15A 50 V dc Surface Mount 1GHz Solder - 12.1 x 9.1 x 3.5mm 9.1mm 3.5mm 12.1mm +125°C -55°C 10µF
RS stock no. 192-831
Mfr. Part No.1806J100 0472MXE01
R 14.133
Each (In a Pack of 20)
units
E01 - 100 V ac/dc Surface Mount - Solder Pad 1806 (4516M) - - - - - - -
RS stock no. 839-1026
Mfr. Part No.NFL21SP107X1C3D
BrandMurata
R 4.346
Each (In a Bag of 5)
units
NFL21SP 200mA 16 V dc Surface Mount - Flat Contact 0805 (2012M) 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +125°C -55°C -
RS stock no. 163-7499
Mfr. Part No.748351024
R 42,813.07
1 Reel of 3000
Reel(s)
WE-BPF - - Surface Mount - Solder Pad - 2.5 x 2 x 0.9mm 2mm 0.9mm 2mm +85°C -40°C -