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

Viewing 1 - 20 of 214 products
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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. 725-7427
Mfr. Part No.NFM21CC223R1H3D
BrandMurata
HK$2.21
Each (In a Pack of 10)
units
NFM21C 2A 50 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. 167-5634
Mfr. Part No.NFM21CC223R1H3D
BrandMurata
HK$1.326
Each (On a Reel of 4000)
units
NFM21C 2A 50 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. 166-9598
Mfr. Part No.NFM21PC474R1C3D
BrandMurata
HK$0.929
Each (On a Reel of 4000)
units
NFM21P 2A 16 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. 107-889
Mfr. Part No.NFM21PC474R1C3D
BrandMurata
HK$1.91
Each (In a Bag of 25)
units
NFM21P 2A 16 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. 239-208
BrandRS PRO
HK$124.58
Each
units
FLTM 10A 350 V dc Panel Mount 1000MHz - - 4.7 (Dia.) x 32.7mm - 22.2mm 32.7mm +85°C -55°C 5nF
RS Stock No. 812-0193
Mfr. Part No.TPD3F303DQDR
HK$4.888
Each (On a Tape of 25)
units
- - - Surface Mount 308MHz Flat Contact WSON 1.8 x 1.45 x 0.75mm 1.45mm 0.75mm 1.8mm +85°C -40°C -
RS Stock No. 880-5276
Mfr. Part No.ECMF02-2AMX6
HK$5.061
Each (In a Pack of 20)
units
ECMF02 200mA - Surface Mount - Flat Contact μQFN 1.8 x 1.6 x 0.5mm 1.6mm 0.5mm 1.8mm +85°C -40°C -
RS Stock No. 165-5521
Mfr. Part No.ECMF02-2AMX6
HK$3.277
Each (On a Reel of 3000)
units
ECMF02 200mA - Surface Mount - Flat Contact μQFN 1.8 x 1.6 x 0.5mm 1.6mm 0.5mm 1.8mm +85°C -40°C -
RS Stock No. 162-7873
Mfr. Part No.TPD3F303DQDR
HK$3.092
Each (On a Reel of 3000)
units
- - - Surface Mount 308MHz Flat Contact WSON 1.8 x 1.45 x 0.75mm 1.45mm 0.75mm 1.8mm +85°C -40°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. 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. 725-7458
Mfr. Part No.NFW31SP106X1E4L
BrandMurata
HK$6.84
Each (In a Pack of 5)
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. 741-7026
Mfr. Part No.ACF451832-103-T
BrandTDK
HK$4.452
Each (In a Pack of 5)
units
ACF 300mA 50 V dc Surface Mount 75MHz Solder Pad - 4.5 x 1.6 x 3.2mm 1.8mm 3.2mm 4.5mm +85°C -25°C -
RS Stock No. 839-1023
Mfr. Part No.NFL18ST507X1C3D
BrandMurata
HK$3.686
Each (In a Bag of 5)
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. 109-5295
Mfr. Part No.ACF451832-103-T
BrandTDK
HK$2.076
Each (On a Reel of 1000)
units
ACF 300mA 50 V dc Surface Mount 75MHz Solder Pad - 4.5 x 1.6 x 3.2mm 1.8mm 3.2mm 4.5mm +85°C -25°C -
RS Stock No. 107-899
Mfr. Part No.NFM21PC104R1E3D
BrandMurata
HK$1.135
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. 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. 839-1036
Mfr. Part No.NFM18PC225B1A3D
BrandMurata
HK$1.39
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. 167-4824
Mfr. Part No.NFM41PC155B1E3L
BrandMurata
HK$4.12
Each (On a Reel of 4000)
units
- 6A 25 V dc Surface Mount - Solder 1806 (4516M) 4.5 x 1.6 x 1mm 1.6mm 1mm 4.5mm +85°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 -
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