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 881-3185
製造零件編號748111009
HK$26.16
個 (以毎袋:5)
單位
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庫存編號 163-7496
製造零件編號748323024
HK$52,380.00
毎卷:4000 個
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庫存編號 163-7494
製造零件編號748121055
HK$47,358.40
毎卷:4000 個
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庫存編號 881-3191
製造零件編號748323056
HK$15.90
個 (以毎袋:5)
單位
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.9mm 1.25mm 0.9mm 2mm +85°C -40°C -
RS庫存編號 163-7497
製造零件編號748323056
HK$47,358.40
毎卷:4000 個
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庫存編號 163-7498
製造零件編號748323155
HK$47,358.40
毎卷:4000 個
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庫存編號 163-7500
製造零件編號748351124
HK$30,414.00
毎卷:3000 個
Reel(s)
WE-BPF - - Surface Mount - Solder Pad - 2.5 x 2 x 0.9mm 2mm 0.9mm 2mm +85°C -40°C -
RS庫存編號 881-3208
製造零件編號748351124
HK$12.542
個 (以毎袋:5)
單位
WE-BPF - - Surface Mount - Solder Pad - 2.5 x 2 x 0.9mm 2mm 0.9mm 2mm +85°C -40°C -
RS庫存編號 881-3194
製造零件編號748323155
HK$15.90
個 (以毎袋:5)
單位
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.95mm 1.25mm 0.95mm 2mm +85°C -40°C -
RS庫存編號 163-7493
製造零件編號748111009
HK$70,163.00
毎卷:4000 個
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庫存編號 163-7499
製造零件編號748351024
HK$22,349.40
毎卷:3000 個
Reel(s)
WE-BPF - - Surface Mount - Solder Pad - 2.5 x 2 x 0.9mm 2mm 0.9mm 2mm +85°C -40°C -
RS庫存編號 881-3198
製造零件編號748351024
HK$10.00
個 (以毎袋:5)
單位
WE-BPF - - Surface Mount - Solder Pad - 2.5 x 2 x 0.9mm 2mm 0.9mm 2mm +85°C -40°C -
RS庫存編號 881-3182
製造零件編號748323024
HK$14.31
個 (以毎袋:5)
單位
WE-BPF - - Surface Mount - Solder Pad - 2 x 1.25 x 0.95mm 1.25mm 0.95mm 2mm +85°C -40°C -
RS庫存編號 881-3188
製造零件編號748121055
HK$15.90
個 (以毎袋:5)
單位
WE-LPF - - Surface Mount 5150 → 5875MHz Solder Pad - 2 x 1.25 x 0.85mm 1.25mm 0.85mm 2mm +85°C -40°C -