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. 107-899
Mfr. Part No.NFM21PC104R1E3D
BrandMurata
HK$1.48
Each (In a Bag of 25)
units
NFM21P 2A 25 V dc Surface Mount - Solder Pad 0805 (2012M) 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +125°C -55°C -
RS Stock No. 170-6595
Mfr. Part No.0603J0250183MXTE01
HK$2.621
Each (On a Reel of 4000)
units
E01 300mA 25 V dc Surface Mount - Solder Pad 0603 (1608M) 1.6 x 0.8 x 0.5mm 0.8mm 0.5mm 1.6mm +125°C -55°C -
RS Stock No. 880-5522
Mfr. Part No.USBDF01W5
HK$5.606
Each (In a Pack of 25)
units
USBDF - - Surface Mount 30 MHz → 1 GHz (Radiated), 450 kHz → 30MHz (Conducted) Gull Wing SOT323 1.4 x 2.2 x 1mm 2.2mm 1mm 1.4mm +150°C -40°C -
RS Stock No. 773-8614
Mfr. Part No.0603J0250183MXTE01
HK$3.624
Each (In a Pack of 10)
units
E01 300mA 25 V dc Surface Mount - Solder Pad 0603 (1608M) 1.6 x 0.8 x 0.5mm 0.8mm 0.5mm 1.6mm +125°C -55°C -
RS Stock No. 811-9830
Mfr. Part No.NFM18PS474R0J3D
BrandMurata
HK$1.196
Each (In a Bag of 25)
units
- 2A 6.3 V dc Surface Mount - Solder 0603 (1608M) 1.6 x 0.8 x 0.6mm 0.8mm 0.6mm 1.6mm +125°C -55°C -
RS Stock No. 166-9711
Mfr. Part No.NFM18PS474R0J3D
BrandMurata
HK$0.599
Each (On a Reel of 4000)
units
- 2A 6.3 V dc Surface Mount - Solder 0603 (1608M) 1.6 x 0.8 x 0.6mm 0.8mm 0.6mm 1.6mm +125°C -55°C -
RS Stock No. 167-4897
Mfr. Part No.NFL18ST507X1C3D
BrandMurata
HK$1.97
Each (On a Reel of 4000)
units
NFL18ST 200mA 16 V dc Surface Mount - Flat Contact 0603 (1608M) 1.6 x 0.8 x 0.8mm 0.8mm 0.8mm 1.6mm +125°C -55°C -
RS Stock No. 741-7048
Mfr. Part No.ACF451832-330-T
BrandTDK
HK$6.126
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. 105-653
Mfr. Part No.NFM18PS474R0J3D
BrandMurata
HK$1.236
Each (In a Bag of 25)
units
NFM18P 2A 6.3 V dc Surface Mount - Solder Pad 0603 (1608M) 1.6 x 0.8 x 0.6mm 0.8mm 0.6mm 1.6mm +125°C -55°C -
RS Stock No. 165-5517
Mfr. Part No.USBDF01W5
HK$4.885
Each (On a Reel of 3000)
units
USBDF - - Surface Mount 30 MHz → 1 GHz (Radiated), 450 kHz → 30MHz (Conducted) Gull Wing SOT323 1.4 x 2.2 x 1mm 2.2mm 1mm 1.4mm +150°C -40°C -
RS Stock No. 167-5602
Mfr. Part No.NFW31SP106X1E4L
BrandMurata
HK$3.262
Each (On a Reel of 2000)
units
NFW31S 200mA 25 V dc Surface Mount - Solder Pad - 3.2 x 1.6 x 1.8mm 1.6mm 1.8mm 3.2mm +85°C -40°C -
RS Stock No. 167-4899
Mfr. Part No.NFL21SP307X1C3D
BrandMurata
HK$1.604
Each (On a Reel of 4000)
units
NFL21SP 300mA 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. 161-8046
Mfr. Part No.NFA21SL806X1A48L
BrandMurata
HK$1.95
Each (On a Reel of 4000)
units
NFA21SL 20mA 10 V dc Surface Mount - Solder 0805 (2012M) 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +125°C -55°C 75pF
RS Stock No. 106-2892
Mfr. Part No.SFSKA5M50CF00-R3
BrandMurata
HK$19.938
Each (In a Pack of 5)
units
SFSKA - - Surface Mount 5.5MHz Solder - 8.5 x 3.8 x 1.8mm 3.8mm 1.8mm 8.5mm - - -
RS Stock No. 839-1067
Mfr. Part No.SFECF10M7HA00-R0
BrandMurata
HK$15.426
Each (In a Bag of 5)
units
SFECF10M7 - - Surface Mount 10.7MHz Flat Contact - 3.45 x 3.1 x 1.3mm 3.1mm 1.3mm 3.45mm +80°C -20°C -
RS Stock No. 107-924
Mfr. Part No.NFM21PC105B1C3D
BrandMurata
HK$1.87
Each (In a Bag of 25)
units
NFM21P 4A 16 V dc Surface Mount - Solder Pad 0805 (2012M) 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +85°C -40°C -
RS Stock No. 166-9591
Mfr. Part No.NFM18CC222R1C3D
BrandMurata
HK$1.058
Each (On a Reel of 4000)
units
NFM18CC 700mA 16 V dc Surface Mount 1kHz Flat 0603 (1608M) 1.6 x 0.8 x 0.6mm 0.8mm 0.6mm 1.6mm +125°C -55°C 2.2nF
RS Stock No. 126-017
Mfr. Part No.DLT/1000
BrandOxley
HK$163.82
Each
units
DLT 10A 100 V dc Panel Mount 1000MHz Axial - - - - 24.3mm +85°C -40°C -
RS Stock No. 188-9071
Mfr. Part No.2337824-2
HK$95.655
Each (In a Pack of 2)
units
- - - - - - - - - - - - - -
RS Stock No. 773-8667
Mfr. Part No.1806Y1000683MXTE01
HK$20.10
Each (In a Pack of 5)
units
E01 300mA 100 V dc Surface Mount 30MHz Solder Pad 1806 (4516M) 4.5 x 1.6 x 1.1mm 1.6mm 1.1mm 4.5mm +125°C -55°C -
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