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 equipment, video equipment, broadband and communication. 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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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庫存編號 239-208
BrandOxley
HK$262.80
單位
FLTM 10A 350 V dc Panel Mount 1000MHz - - 4.7 (Dia.) x 32.7mm - 22.2mm 32.7mm +85°C -55°C 5nF
RS庫存編號 165-5521
製造零件編號ECMF02-2AMX6
HK$2.685
個 (在毎卷:3000)
單位
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庫存編號 880-5276
製造零件編號ECMF02-2AMX6
HK$4.697
/個 (每包:20個)
單位
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庫存編號 216-6098
製造零件編號NFE61HT332Z2A9L
BrandMurata
HK$5.57
個 (在毎卷:2500)
單位
NFE61HT 2A 100 V dc Surface Mount - - A9L 6.8 x 1.6 x 1.6mm - - - - - -
RS庫存編號 167-4897
製造零件編號NFL18ST507X1C3D
BrandMurata
HK$2.434
個 (在毎卷:4000)
單位
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庫存編號 165-5517
製造零件編號USBDF01W5
HK$5.691
個 (在毎卷:3000)
單位
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庫存編號 725-7458
製造零件編號NFW31SP106X1E4L
BrandMurata
HK$7.87
/個 (每包:5個)
單位
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庫存編號 109-5295
製造零件編號ACF451832-103-T
BrandTDK
HK$2.405
個 (在毎卷:1000)
單位
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庫存編號 741-7026
製造零件編號ACF451832-103-T
BrandTDK
HK$5.456
/個 (每包:5個)
單位
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庫存編號 880-5522
製造零件編號USBDF01W5
HK$8.28
/個 (每包:25個)
單位
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庫存編號 167-5602
製造零件編號NFW31SP106X1E4L
BrandMurata
HK$3.942
個 (在毎卷:2000)
單位
NFW31S 200mA 25 V dc Surface Mount 10MHz Solder Pad - 3.2 x 1.6 x 1.8mm 1.6mm 1.8mm 3.2mm +85°C -40°C -
RS庫存編號 216-6099
製造零件編號NFE61HT332Z2A9L
BrandMurata
HK$12.812
Each (On a Tape of 5)
單位
NFE61HT 2A 100 V dc Surface Mount - - A9L 6.8 x 1.6 x 1.6mm - - - - - -
RS庫存編號 839-1023
製造零件編號NFL18ST507X1C3D
BrandMurata
HK$5.05
個 (以毎袋:5)
單位
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庫存編號 604-0256
製造零件編號MEA2010L50R0
BrandTDK
HK$5.615
/個 (每包:10個)
單位
MEA-L - 10 V Surface Mount 500 → 2000MHz Solder - 2.0 x 1.0 x 0.7mm - 0.7mm 2mm +85°C -40°C -
RS庫存編號 170-6594
製造零件編號0603J0250391MCTE01
HK$3.356
個 (在毎卷:4000)
單位
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庫存編號 216-6108
製造零件編號NFM18PS105D0J3D
BrandMurata
HK$0.636
Each (On a Tape of 100)
單位
NFM18PS 2A 6.3 V dc Surface Mount - Solder D 1.6 x 0.8 x 0.6mm - - - - - -
RS庫存編號 463-773
製造零件編號NUF4401MNT1G
Brandonsemi
HK$5.463
/個 (每包:10個)
單位
NUF4401MN - - Surface Mount 2400MHz Solder Pad DFN8 2 x 2 x 1mm 2mm 1mm 2mm +85°C -40°C -
RS庫存編號 167-4845
製造零件編號SFECF10M7EA00-R0
BrandMurata
HK$7.009
個 (在毎卷:2000)
單位
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庫存編號 216-6097
製造零件編號NFE31PT470C1E9L
BrandMurata
HK$3.788
Each (On a Tape of 10)
單位
NEF31PT 6A 25 V dc Surface Mount - - E9L 3.2 x 1.6 x 1.6mm - - - - - -
RS庫存編號 839-1032
製造零件編號NFL21SP706X1C3D
BrandMurata
HK$3.74
個 (以毎袋:5)
單位
NFL21SP 150mA 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 -