High-Pass Filters
Refine signal, allowing the transmission of signal above a specific corner frequency, while strongly attenuating the frequencies below.
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Product
Individual Optical Filters
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Our comprehensive line of Semrock optical filters helps your design attain the best signal-to-noise ratios. Steep spectral edges maximize useable bandwidth, and high transmission or reflection captures the brightest images with best-in-class Flatness. Deep and extended blocking are optimized for your application, minimizing background and crosstalk while reducing cost. Select from the extensive catalog or go with a custom filter to your exact specifications, and remain confident of uncompromising quality, reliability, and reproducible results.
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Product
CAT-5 Video Variable Filters
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It is often beneficial to use a video driver at the output of a video encoder for power savings, line driving, and additional circuit protection. The video driver is typically configured as an active filter, also known as a reconstruction or anti-imaging filter. The purpose of the reconstruction filter is twofold: it blocks the higher frequency components (above the Nyquist frequency) that were introduced into the video signal as part of the digitization process and provides gain to drive the external 75 Ω cable to the video display.
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Product
Dual Filter
Trig-TekTM 550D
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Two channels with variable high pass and low pass filters in a module 7" high x 2.6" wide
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Product
Waveguide Bandpass Filters
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More details on PE-W28F001 WR-28 band pass wave guide filter can be found on the the waveguide bandpass filter design datasheet specifications up above. WR-28 waveguide bandpass filter from Pasternack is in stock now at our Irvine, CA facility. Our waveguide bandpass filter with WR-28 flanges is part of over 40,000 components for RF, microwave and millimeter wave applications in-stock which are available to ship same day worldwide.
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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
Capacitor for DC Filtering
FIL1
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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 and protect the line from instantaneous peaks and surges of tension.
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Product
Active Filters
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Analog Devices’ specially designed active filter products can accommodate any frequency response (low-pass, high-pass, or band-pass) and a wide range of frequencies. Our line of continuous time and switched capacitor filters provides simple, flexible frequency discrimination solutions.
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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
Fast Tuned Notch Filter
ES005 & ES006
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Teledyne Defence & Space’s (TDS) range of Fast Tuned Notch Filters (FTNF) have been designed to protect Electronic Support Measures (ESM) receivers from high duty cycle, frequency agile interference produced by on board (or cohort) combat radar systems. ESM sensors often need protection from high power nearby radars, and such signals can reduce receiver dynamic range.
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Product
Telephone Attenuators & RFI Filters
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Despite the growth in digital and fiber systems, many telephone companies still require basic line treatment products. Wilcom's hard-to-find line treatment products help the telecommunications industry deliver the performance the customer expects. Products include line powered amplifiers and RFI filters.
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Product
RF Filters
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CTS develops and manufactures high-end radio frequency (RF) filters used by various technologies to block out or filter certain signal frequencies. In 1982, CTS invented the ceramic monoblock, and ever since, our ceramic RF filters have been setting the industry standard in terms of lowest insertion loss, attenuation /rejection/isolation, Q-factor, size, power handling, and transition slope. Our portfolio includes band-pass filters, notch filters, low-pass filters, delay line filters, diplexers, duplexers, and triplexers/multiplexers.
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Product
YIG Filters
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With a 30 year heritage developing leading YIG technologies, Teledyne RF & Microwave has unsurpassed capabilities as your single source for YIG filters. Teledyne has a large, self-contained YIG manufacturing and R&D infrastructure that ensures continuous YIG innovations, including the industry’s only YIG filter that “locks” to a desired signal.
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Product
2-Port Optical Tunable Filter
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Optoplex's Tunable Optical Filter, also known as Optical Tunable Filter or Tunable Bandpass Filter, is an integrated module, consisting of micro optics and electronics. When receiving a stream of optical signals of a plurality of wavelengths from the Input-Port (IN), the 2-port tunable optical filter directs a selected channel to the Output-Port (OUT). The selected channel can be varied (tuned) within the operating wavelength (frequency) range by a remote command sent through the built-in control PCB and firmware.
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Product
Super-Notch YIG Band-Reject Filters
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YIG Tuned BRF patented technology gets closer to the ‘perfect notch'. Leveraging a long heritage of engineering innovation in YIG technologies, Teledyne RF & Microwave has developed a line of YIG Tuned Band-Reject Filters powered by patented new technology that overcomes many long-time design limitations inherent to YIG Band-Reject or “notch” filters. Our new line delivers major advancements and unequalled performance.
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Product
Bandpass Filters
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K&L Microwave provides bandpass filters in multiple topologies built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications, as well as product families. Use the quote cart to request a quote on a specific design.
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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
EMI/EMC Filters And EMI Solutions
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Chengdu Mengsheng Electronics Co., Ltd.
DOREXS is a company specializing in the manufacture of EMI/EMC filters. For more than a decade, it has been committed to providing cost-effective EMI/EMC filters and EMI solutions for commercial, medical, military and industrial applications. We help your equipment gain recognition for its stable and reliable functions.
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Product
OX 774 F Filter Node
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- Two Output- Output Level: 85 dB- Filters 1550nm CATV wavelength- No interference of 1310/1490nm
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Product
RF Filters - Notch
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A specialized band-reject filter that blocks or significantly weakens a very narrow range of unwanted frequencies (the "notch") while letting all other desired frequencies pass through relatively unchanged.
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Product
Filters
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High performance and high quality. Mercury Systems' filter products utilize the latest in filter technology and are supported by the Mercury commitment to quality and innovation. With experience manufacturing space-quality hardware, Mercury has developed the capability for reliability to be built-in from the first design phase. With state-of-the art modeling software and an on-site machine shop, Mercury Systems is ready deliver a standard product or custom design.
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Product
Low Noise Filter Adapter
PX0107A
Adapter Module
The PX0107A converts Dsub25 outputs to five SMB outputs with the low noise filtering capability down to 25 μVrms (20 MHz). It supports the Keysight M9614/15A.
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Product
Low-Noise Filter, 210 V / 3 A
N1298C
Noise Filter
The N1298 Series power source accessories are a collection of low noise filters for the Keysight B2960 Series precision source / measure units (SMUs).
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Product
Notch Filters
Maxi-Pole Notch Series
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MAXI-POLE® Notch Filters offer all of the same performance features as the MINI-POLE® Notch filters, with the advantage of an improved notch shape factor.
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Product
8-Channel Amplifier and Low-Pass Filter Module
SCS-819
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The SCS-818 and SCS-819 amplifier/filter module provides eight 4-pole low-pass filters that can be individually configured for a cutoff-frequency from 0.5Hz to 70kHz(SCS-818) and 0.5Hz to 70kHz(SCS-819). Each of the SCS-818/SCS-819's eight channels features an instrumentation amplifier with software-selectable gains of 1 to 1000 in 1-2-5 steps.
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Product
MEMS Tunable Filter
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Optoplex’s MEMS Tunable Optical Filter is based on a patented micro-optic design with MEMS tuning technology. It is an integrated module consisting of a MEMS chip, micro-optics and control electronics and interface. When receiving a stream of optical signals of a plurality of wavelengths from the Input-Port (IN), the 2-port tunable optical filter directs a selected channel to the Output-Port (OUT). Wavelength (frequency) tuning is achieved by changing driving voltage applied to the MEMS chip, via the control electronics and the built-in firmware.
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Product
Automated Filter Tester
8127
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The Automated Filter Tester 8127 is designed to comply with commercial respirator standards around the globe and has a proven track record of durability, reliability, and minimal maintenance, meeting the demanding requirements of manufacturing and quality control environments. Whether you are looking for a stand-alone tester to check a few filters per day or need to integrate your tester in an automated, high volume production line, CERTITEST AFT’s are up to the challenge
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RF Filters
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Amphenol Procom has 40 years of experience in developing and producing high quality RF Low- and high-power Filters for professional radio systems, widely used in the Public Safety and Mission Critical radio TETRA networks in Europe. The comprehensive portfolio of Filter products from Amphenol Procom are designed by experienced engineers, and highly used in the HF-, VHF- and UHF radio frequency range.
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Product
Narrow Band Filters (Single Octave)
MINI-POLE® Series
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The MINI-POLE® Series of tunable filters is optimized for size, RF power handling, low distortion, and exceptional selectivity. The product line includes several standard designs in various bands to support a myriad of applications. Approximate performance is summarized in the MINI-POLE Series Selection Guide.





























