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 184 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$2.616
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$1.226
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$1.617
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
BrandOxley
HK$193.06
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$5.216
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. 162-7873
Mfr. Part No.TPD3F303DQDR
HK$2.898
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. 165-5521
Mfr. Part No.ECMF02-2AMX6
HK$1.378
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. 880-5276
Mfr. Part No.ECMF02-2AMX6
HK$3.525
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. 165-5517
Mfr. Part No.USBDF01W5
HK$2.966
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. 109-5295
Mfr. Part No.ACF451832-103-T
BrandTDK
HK$2.203
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. 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. 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. 105-653
Mfr. Part No.NFM18PS474R0J3D
BrandMurata
HK$1.257
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. 167-4824
Mfr. Part No.NFM41PC155B1E3L
BrandMurata
HK$4.009
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. 166-9711
Mfr. Part No.NFM18PS474R0J3D
BrandMurata
HK$0.608
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. 167-4844
Mfr. Part No.NFM18PC225B1A3D
BrandMurata
HK$1.068
Each (On a Reel of 4000)
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. 880-5522
Mfr. Part No.USBDF01W5
HK$4.722
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. 725-7458
Mfr. Part No.NFW31SP106X1E4L
BrandMurata
HK$6.87
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. 839-1036
Mfr. Part No.NFM18PC225B1A3D
BrandMurata
HK$2.09
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 -