Butterworth Filters
Refine signal, providing the flattest possible frequency in the passband, with a monotonic response.
See Also: Bessel Filters
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Product
RF Filters - Band Pass
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An electronic component that lets a specific range (band) of radio frequencies pass through while blocking (attenuating) frequencies above and below that band, crucial for isolating desired signals in crowded spectrums for radios, phones, and wireless systems
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Product
Co-Siting Filters and Combiners
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*Multiplexers, Duplexers, Diplexers and Antenna Sharing Combiners*Enables multiple base stations to share a single antenna*Many of the units offer both High and Low band support*Ideal solutions for either ground based and tower based antenna sharing*Compact lightweight rugged construction
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Product
dv/dt Filters
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dV/dT Output Filter Modules effectively protect motors against these high voltage spikes due to the use of motor cables between IGBT based motor drives and motors.
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Product
Filtering Network TAPs
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Filtering network TAPs allow you to filter out the packets and traffic that is not needed by the tool to perform its function. Filtering ensures that monitoring ports do not become oversubscribed with unneeded data. Filtering TAPs are purpose-built hardware devices that let you see every bit, byte and packet.®
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Product
Notch Filters
MINI-POLE Notch Series
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MINI-POLE® Notch Filters are optimized for small physical size and low power consumption. Two standard package styles are available (PC-Mount and SMA).
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Product
RF Filters
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RF Filters block unwanted frequencies when testing electronic devices for emissions during EMC testing. They attenuate unwanted frequencies and allow the desired signals through. The RF filters isolate the device under test from external RF noise, this increases the reliability and accuracy of the EMC testing by preventing out-of-band noise and harmonics.
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Product
High-Current, Ultra-Low Noise Filter, 21 V / 500 MA, 10 Ω
N1298A
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The N1298A Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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Product
9 kHz Highpass Filter
TBHPF1-9KHZ
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9 kHz Highpass Filter for protection of spectrum analyzer or EMI-receiver RF inputs against high amplitude subharmonics and residual 50 Hz voltage in conducted emission measurement set ups
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Product
8-Ch Relay And 8-Ch Isolated Digital Input W/ Digital Filter And Interrupt PCIe Card
PCIE-1761H
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8 opto-isolated digital input channels8 relay actuator output channelsInterrupt handling capability for all DI channelsSelectable Digital filter time for all DI channelsOutput status readableLED indicator to show activated relaysSelectable Form A or Form C
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Product
Fiber Bragg Grating And Optical Filters
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Exail is committed to develop and manufacture optical components with excellent performances to support the most diverse industrial applications such as Telecom, sensing, defense, space, fiber laser and harsh environment.
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EMI Filters & Adapters
Emissions
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The commonality in this section is conducted noise. Noise is not just a consideration when complying with EMC legal requirements, its is also potentially damaging and/or cause of failure of product performance or communications, even if the noise level is below EMC standards limits.
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Product
Light Measurement Optical Filters
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International Light Technologies
Optical filters are often used to attenuate certain wavelengths of light and produce an overall desired detector response.
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Product
Rack Module with Standard Contactors without Anti-Harmonic filters
MOD Rack
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Lifasa - International Capacitors, SA
The MOD-RACK control units include, in a compact form, all the components necessary for the operation of a step of a standard capacitor bank. MOD-RACK modules are divided into two basic blocks: power block and control block. The two blocks are mounted in a small frame to be installed in an electrical panel.
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Product
Highpass Filters
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Frequency range of this band pass filter is 1,000 MHz to 2.5 GHz and the passband is 1.5 GHz. PE8715 highpass filter is one of over 40,000 RF microwave and millimeter wave components supplied by Pasternack. Our 5 section highpass filter can be bought and shipped worldwide the same-day as with our other in-stock RF parts.
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Lowpass / Bandpass / Highpass Filter
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Corech Microwav’s RF Filers frequency ranges from dc to 67 GHz, band pass/high pass/low pass designs, narrow-band/wide-band types to meet customers various needs. These low pass filters(LPF), high pass filters (HPF), and band pass filters (BPF) offer very low insertion loss, outstanding VSWR and long-term performance.
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Product
Power Capacitors with Protection Filter
CPFVF / CPMVF
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Lifasa - International Capacitors, SA
The capacitors of the CPFVF and CPMVF series are formed by a power capacitor, an antiarmonic protection reactance and fuse or magnetothermic protection. These capacitors are specially designed for the fixed compensation of transformers in networks with a high level of harmonics.
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Product
Tunable Edge Filters
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Tunable edge filter is a customized product. It usually belongs to 2-port optical tunable filter product platform. Instead of using narrow bandpass filter in the 2-port tunable optical filter, the tunable edge filter utilizes a low-pass or long-pass interference filter. By changing the incident angle of the light beam, the cut-off wavelength will be tuned. Standard Tunable edge filters support C-band or L-band wavelength range.
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Product
Wide Band Filters (multi-octave)
GEN3-ERF®
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The 3rd Generation Mini-ERF is a Reduced SWaP-C, 30 to 520 MHz tunable bandpass filter that features 50mW (typ.) power consumption, 1 Watt CW continuous power handling (7% BW), +40 dBm IIp3 (typ.), low insertion loss, and 4 dB typ. selectivity @ +/-10%, (7% filter). The GEN3-ERF’s are fully tuned and tested by Pole/Zero® for convenience and ease of use.
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Product
SWITCHABLE FILTER BANKS
FLT-1 WB
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Matrix Test Equipment Incorporated
The Model FLT-1-WB is our Wide Bandpass filters for measuringthe Video Carrier and the Composite Second Order Beatdistortion on both sides of the carrier.
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Product
Capacitor for DC Filtering
FIL2
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Lifasa - International Capacitors, SA
FIL condensers are specially designed for use in direct current sources and their functions are to filter the alternating output ripple as well as protect the line from momentary spikes and sudden power surges.
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Product
Ultra-Low Noise Filter, 42 V / 105 MA, 50 Ω
N1298B
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The N1298 Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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Product
Broadcast Filters VHF DAB
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The filters offer a compact and flexible solution for both transmitter mask filtering and digital RF channel combining. The DAB filter range is founded on RFS' world-leading RF combining technology and utilizes a similar platform of components to the company's VHF Band III;digital television combiners. DAB filters can beincorporated within transmitters to provide critical mask filtering of the digital RF signal, in keepingwith global DAB standards. When used as the key components of a balanced DAB combiner, thefilters can achieve both critical transmitter masking and adjacent channel combining simultaneously,eliminating the need for additional filters within the transmitter.
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Product
Gas Filter Correlation Carbon Dioxide Analyzer
Model T360
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The Model T360 CO2 analyzer measures Carbon Dioxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO2 filled chamber and a chamber with no CO2 present. The light path then travels through the sample cell, which has a folded path of 2.56 meters.The energy loss through the sample cell is compared with the reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing excellent performance over a wide concentration range.All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T360 comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Product
Wide Band Filters (multi-octave)
MINI-ERF® Series
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The MINI-POLE® Extended Range Series of tunable filters was developed to address applications needing a small, surface mount package with wide tunability. This tunability is accomplished by the use of multiple internal tunable filters along with high performance PIN diode RF band select switches all contained in one housing. The tunable filters are designed to minimize size and power consumption while maintaining high RF power handling and linearity characteristics. Parallel or serial digital interface can be selected by a mode pin for ease of integration into your design.
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Filters / Splitters / Detectors
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DiCon’s 100 GHz WDM is designed to multiplex and demultiplex signals in multi-wavelength systems based on the ITU 100 GHz grid. The component uses a thin film filter mounted between a pair of GRIN lens collimators. The 100 GHz WDM is housed in a compact, environmentally stable package that offers superior resistance to humidity and temperature and is suitable for mounting on a printed circuit board or within a module.
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Band Pass Filters
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VDI offers up-converter modules for communication applications. The double sideband nature of the up-converter modules makes filtering necessary. VDI has designed filters to filter one sideband and preserve signal modulation. These filters offer low passband insertion loss and high out-of-band rejection. Custom filters may be available upon request. NRE (non-recurring engineering) fee may be required.
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Product
Dual Channel Variable Filter
4302
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The Model 4302 Dual Filter is a high performance, low priced, general purpose filter for use in the laboratory as well as in multiple channel data acquisition applications.
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Product
EMI Filters And Application-Specific Integrated Products (ASIP)
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An electromagnetic interference (EMI) filter is used in electronic circuits to improve system immunity against unwanted external electromagnetic signals from neighboring circuits and to avoid emitting radiation (“noise”) that may disturb the same nearby circuits by canceling unwanted frequencies.





























