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 - 14 of 14 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. 881-3182
Mfr. Part No.748323024
HK$14.31
Each (In a Bag of 5)
units
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.95mm 1.25mm 0.95mm 2mm +85°C -40°C -
RS Stock No. 881-3208
Mfr. Part No.748351124
HK$12.542
Each (In a Bag of 5)
units
WE-BPF - - Surface Mount - Solder Pad - 2.5 x 2 x 0.9mm 2mm 0.9mm 2mm +85°C -40°C -
RS Stock No. 163-7494
Mfr. Part No.748121055
HK$47,358.40
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. 881-3191
Mfr. Part No.748323056
HK$15.90
Each (In a Bag of 5)
units
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.9mm 1.25mm 0.9mm 2mm +85°C -40°C -
RS Stock No. 163-7496
Mfr. Part No.748323024
HK$52,380.00
1 Reel of 4000
Reel(s)
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.95mm 1.25mm 0.95mm 2mm +85°C -40°C -
RS Stock No. 881-3188
Mfr. Part No.748121055
HK$15.90
Each (In a Bag of 5)
units
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. 163-7497
Mfr. Part No.748323056
HK$47,358.40
1 Reel of 4000
Reel(s)
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.9mm 1.25mm 0.9mm 2mm +85°C -40°C -
RS Stock No. 881-3194
Mfr. Part No.748323155
HK$15.90
Each (In a Bag of 5)
units
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.95mm 1.25mm 0.95mm 2mm +85°C -40°C -
RS Stock No. 163-7498
Mfr. Part No.748323155
HK$47,358.40
1 Reel of 4000
Reel(s)
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.95mm 1.25mm 0.95mm 2mm +85°C -40°C -
RS Stock No. 163-7493
Mfr. Part No.748111009
HK$70,163.00
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 -
RS Stock No. 881-3185
Mfr. Part No.748111009
HK$26.16
Each (In a Bag of 5)
units
WE-LPF - - Surface Mount 902 → 928MHz Solder Pad - 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +85°C -40°C -
RS Stock No. 881-3198
Mfr. Part No.748351024
HK$10.00
Each (In a Bag of 5)
units
WE-BPF - - Surface Mount - Solder Pad - 2.5 x 2 x 0.9mm 2mm 0.9mm 2mm +85°C -40°C -
RS Stock No. 163-7500
Mfr. Part No.748351124
HK$30,414.00
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 -
RS Stock No. 163-7499
Mfr. Part No.748351024
HK$22,349.40
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 -