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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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 167-4899
製造零件編號NFL21SP307X1C3D
BrandMurata
HK$6,417.38
毎卷:4000 個
Reel(s)
NFL21SP 300mA 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 -
RS庫存編號 167-4897
製造零件編號NFL18ST507X1C3D
BrandMurata
HK$7,880.00
毎卷:4000 個
Reel(s)
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 741-7026
製造零件編號ACF451832-103-T
BrandTDK
HK$4.452
/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 725-7458
製造零件編號NFW31SP106X1E4L
BrandMurata
HK$5.498
/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 167-5602
製造零件編號NFW31SP106X1E4L
BrandMurata
HK$3.262
個 (在毎卷:2000)
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 773-8614
製造零件編號0603J0250183MXTE01
HK$3.624
/個 (每包:10個)
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 165-5517
製造零件編號USBDF01W5
HK$4.885
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 839-1039
製造零件編號NFL21SP307X1C3D
BrandMurata
HK$2.252
個 (以毎袋:5)
單位
NFL21SP 300mA 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 -
RS庫存編號 741-7048
製造零件編號ACF451832-330-T
BrandTDK
HK$6.126
/個 (每包:5個)
單位
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庫存編號 107-899
製造零件編號NFM21PC104R1E3D
BrandMurata
HK$1.135
個 (以毎袋:25)
單位
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庫存編號 880-5522
製造零件編號USBDF01W5
HK$4.763
/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 839-1036
製造零件編號NFM18PC225B1A3D
BrandMurata
HK$1.39
個 (以毎袋:10)
單位
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庫存編號 163-2699
製造零件編號NUF4401MNT1G
HK$1.49
個 (在毎卷:3000)
單位
NUF4401MN - - Surface Mount 2400MHz Solder Pad - 2 x 2 x 1mm 2mm 1mm 2mm +85°C -40°C -
RS庫存編號 106-044
製造零件編號NFM18PC104R1C3D
BrandMurata
HK$0.968
個 (以毎袋:25)
單位
NFM18C 2A 16 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庫存編號 239-214
BrandRS PRO
HK$82.88
單位
SLT 10A 200 V dc Panel Mount 10000MHz - - 4.7 x 4.7 x 19mm 4.7mm 19mm 4.7mm +85°C -55°C 5nF
RS庫存編號 167-4947
製造零件編號NFM18PC104R1C3D
BrandMurata
HK$2,257.09
毎卷:4000 個
Reel(s)
NFM18C 2A 16 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庫存編號 239-185
BrandRS PRO
HK$126.14
單位
DLT4 10A 200 V dc Panel Mount 10000MHz - - 36mm - 22mm 36mm +125°C -55°C 22nF
RS庫存編號 106-050
製造零件編號NFM18PC224R0J3D
BrandMurata
HK$1.64
個 (以毎袋:25)
單位
NFM18C 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庫存編號 192-831
製造零件編號1806J100 0472MXE01
HK$6.75
/個 (每包:20個)
單位
E01 - 100 V ac/dc Surface Mount - Solder Pad 1806 (4516M) - - - - - - -
RS庫存編號 741-7004
製造零件編號ACF321825-331-T
BrandTDK
HK$2.108
/個 (每包:5個)
單位
ACF 300mA 20 V Surface Mount 210MHz Solder Pad ACF321825 3.2 x 2.5 x 1.8mm 2.5mm 1.8mm 3.2mm +85°C -25°C -