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.
比較 產品詳述 單價 | Brand | 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 |
|---|
个 HK$7.18 | Murata | NFE61HT | 2A | 100 V dc | Surface Mount | - | - | A9L | 6.8 x 1.6 x 1.6mm | - | - | - | - | - | |||||
个（每带 2500 ） HK$4.124 | Murata | NFE61HT | 2A | 100 V dc | Surface Mount | - | - | A9L | 6.8 x 1.6 x 1.6mm | - | - | - | - | - | |||||
个（每带 4000 ） HK$1.762 | Murata | NFA21SL | 20mA | 10 V dc | Surface Mount | 50MHz | Solder | 0805 (2012M) | 2 x 1.25 x 0.85mm | 1.25mm | 0.85mm | 2mm | +125°C | -55°C | |||||
个 (以毎袋：250) HK$1.644 | Murata | Dss1 | 6A | 100 V dc | Through Hole | - | - | Q55B | 8.5 x 3.5 x 7.5mm | - | - | - | - | - | |||||
个（每托盘 10 ） HK$2.537 | Murata | Dss1 | 6A | 100 V dc | Through Hole | - | - | Q55B | 8.5 x 3.5 x 7.5mm | - | - | - | - | - | |||||
个（每带 1500 ） HK$1.672 | Murata | DSS1 | 6A | 100 V dc | Through Hole | 1MHz | Radial | Q55B | 8.5 x 3.5 x 7.5mm | 3.5mm | 7.5mm | 8.5mm | +85°C | -40°C | |||||
个（每托盘 1500 ） HK$1.777 | Murata | DSS1 | 6A | 100 V dc | Through Hole | - | - | Q91A | 8.5 x 3.5 x 7.5mm | - | - | - | - | - | |||||
个 HK$7.84 | Murata | NFM31KC | 6A | 50 V dc | Surface Mount | - | Solder | L | 3.2 x 1.6 x 1.3mm | - | - | - | - | - | |||||
个 (以毎袋：5) HK$4.86 | Murata | NFE61PT | 2A | 50 V dc | Surface Mount | - | Flat Contact | 2706 (6816M) | 6.8 x 1.6 x 1.6mm | 1.6mm | 1.6mm | 6.8mm | +85°C | -40°C | |||||
个（每托盘 10 ） HK$2.73 | Murata | NFE31P | 6A | 25 V dc | Surface Mount | - | Solder Pad | - | 3.2 x 1.6 x 1.6mm | 1.6mm | 1.6mm | 3.2mm | +85°C | -40°C | |||||
个（每托盘 5 ） HK$4.86 | Murata | NFE61P | 2A | 50 V dc | Surface Mount | - | Solder Pad | - | 6.8 x 1.6 x 1.6mm | 1.6mm | 1.6mm | 6.8mm | +85°C | -25°C | |||||
个 HK$10.08 | Murata | NFM31KC | 6A | 100 V dc | Surface Mount | - | Solder | L | 3.2 x 1.6 x 1.3mm | - | - | - | - | - | |||||
个（每托盘 20 ） HK$2.86 | Murata | DSS1 | 6A | 100 V dc | Through Hole | 1MHz | Radial | Q55B | 8.5 x 3.5 x 7.5mm | 3.5mm | 7.5mm | 8.5mm | +85°C | -40°C | |||||
个（每带 4000 ） HK$13.823 | Murata | NFM41PC | 6A | 50 V dc | Surface Mount | - | Solder | L | 4.5 x 1.6 x 1mm | - | - | - | - | - | |||||
个（每带 2000 ） HK$1.957 | Murata | NFE31P | 6A | 25 V dc | Surface Mount | - | Solder Pad | - | 3.2 x 1.6 x 1.6mm | 1.6mm | 1.6mm | 3.2mm | +85°C | -40°C | |||||
个 (以毎袋：5) HK$4.684 | Murata | 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 | |||||
个（每托盘 10 ） HK$2.79 | Murata | NFE31P | 6A | 25 V dc | Surface Mount | - | Solder Pad | - | 3.2 x 1.6 x 1.6mm | 1.6mm | 1.6mm | 3.2mm | +85°C | -40°C | |||||
个（每托盘 1500 ） HK$1.777 | Murata | Dss1 | 6A | 100 V dc | Through Hole | - | - | Q91A | 8.5 x 3.5 x 7.5mm | - | - | - | - | - | |||||
个（每带 4000 ） HK$2.319 | Murata | 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 | |||||
个 HK$3.00 | Murata | Dss1 | 6A | 100 V dc | Through Hole | - | - | Q91A | 8.5 x 3.5 x 7.5mm | - | - | - | - | - | |||||
