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.

...
Read more Read less

Filters

Viewing 1 - 6 of 6 products
Results per page
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. 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. 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. 880-5522
Mfr. Part No.USBDF01W5
HK$4.763
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. 165-5540
Mfr. Part No.ECMF02-4CMX8
HK$2.128
Each (On a Reel of 3000)
units
ECMF02 - - Surface Mount - Flat Contact μQFN 2.6 x 1.3 x 0.6mm 1.3mm 0.6mm 2.6mm +85°C -30°C -
RS Stock No. 880-5285
Mfr. Part No.ECMF02-4CMX8
HK$5.946
Each (In a Pack of 10)
units
ECMF02 - - Surface Mount - Flat Contact μQFN 2.6 x 1.3 x 0.6mm 1.3mm 0.6mm 2.6mm +85°C -30°C -