GlobTek, Inc. - Northvale, NJ
Manufacturer, Custom Manufacturer
Woman-owned manufacturer of interference filters. Snap-in, panel, bulk head mounting versions available. Fused & switched models are available. Applications include medical & commercial applications. ISO 9001:2000 registered.
www.globtek.com/html/uc5.html

GrayGlass (Gray Glass) - Queens Village, NY
Distributor, Manufacturer, Custom Manufacturer, Service Company
Manufacturer & distributor of interference filters. Specialized coatings (AR, interference), cutting, grinding, polishing, tempering, laminating, drilling, CNC machining.
Brand Names: AFG, Devon, Guardian, Kopp, Pilkington, Saint-Gobain, Schott
www.grayglass.net/glass.cfm/Optical/Filters...

ACS Industries, Inc. - Lincoln, RI
Manufacturer, Custom Manufacturer
ISO/TS 16949:2002 certified manufacturer of filters for all applications. Materials used are knitted wire mesh, expanded metal & flat wound wire using stainless steel, nickel steel & other alloys. In-house machine shop provides fast tooling & prototype turnarounds. Also available are breathers, flame arrestors, mufflers, insulation products, catalyst substrates, seals, gaskets & more. Worldwide engineering & customer support services available.
www.acsindustries.com/products/default.html

SNC Manufacturing Co., Inc. - Oshkosh, WI
Manufacturer, Custom Manufacturer
Custom manufacturer of interference filters available in two sizes for harmonic frequency attenuation & reducing AC voltages, currents or harmonics. Interference filters are available in 36 in. length with three conductors & 22 ga. leads. Induction neutralizing transformers, harmonic suppression reactors & noise chokes are also available. ISO 9002 compliant, with JIT delivery & warranty services available.
www.sncmfg.com/telecom/products/noise-solut...

Laird Technologies - Earth City, MO
Distributor, Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2000 & ISO 14001 certified worldwide manufacturer & distributor of standard & custom EMI products including EMI/RFI & interference filters. Filters are available in different materials, sizes & electrical specifications. Services include manufacturing, engineering & rapid prototyping.
lairdtech.thomasnet.com/category/proprietar...

Interference Filters Products
	Common Mode Arrays - Power and Signal EMI Filtering Chip Arrays - Signal Filtering Multi-Line Arrays - Power Filtering

Edmund Optics - Barrington, NJ
Distributor, Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2008 certified worldwide manufacturer & distributor of standard & custom interference filters. Types of interference filters include bandpass interference filters, diode interference filters, broad band interference filters, quality bandpass filters & hard coated bandpass interference filters. Mounted broadband interference filters, mounted laser line interference filters, mounted narrow & mounted NIR bandpass interference filters, narrow laser line interference filters & NIR narrow band interference filters are also available.
www.edmundoptics.com/optics/optical-filters...

Phoenix Contact - Middletown, PA
Manufacturer, Custom Manufacturer
Manufacturer of standard and custom interference filters. Various features include modular terminal blocks, protective elements between feed-through terminal blocks and metal mounting foots, DIN rail modules, integrated on/off switches and thermal monitoring. Oil and gas, transportation infrastructure and water management industries served.
www.phoenixcontact.com/online/portal/us?1dm...

Airsan Corp. - Milwaukee, WI
Manufacturer, Custom Manufacturer
Manufacturer of standard & custom EMI/RFI, radio frequency interference filters. Features include aluminum construction, non-corrosive & 4 in. deep sound attenuator in round or square shape. Vanes are designed for directional air control & noise reduction in ventilation ducts. Silencers are used for conventional privacy or to eliminate equipment noise. Exhaust & intake silencers are used in ventilation systems.

Intermark USA, Inc. - San Jose, CA
Distributor, Manufacturer
Manufacturer of interference filters.Products are available in a wide range of sizes & shapes.
intermark-usa.com/products/emc/emi-ferrite-...

Brick Wall / Div. of Price Wheeler Corp. - San Diego, CA
Manufacturer
Manufacturer of noise interface filters. Rack & panel mountable & modular surge protectors are also available. Ten years warranty.
www.brickwall.com/products/20-amp-panel-mou...

Comar Optics Inc. - Regina, SK
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of filters including interference filters. Specifications include 8.6 mm to 50 mm clear aperture dia. and 5 mm and 6 mm thickness. Standard products are also available.
www.comaroptics.com/pdfs/Comar_filters_and_...

REO-USA, Inc. - Indianapolis, IN
Manufacturer
Manufacturer of EMI/RFI and radio frequency interference (RFI) filters. Suitable for industrial and transportation converter, electro medical, electrical test, power electronic and electrical vehicle applications. Some items UL listed.
www.reo-usa.com/products-select.php?u=Induc...

Evaporated Coatings, Inc. - Willow Grove, PA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer a variety of custom filters, heat reflecting films, color separation coatings & long & short wave pass designs. These multilayer coatings exhibit sharp transitions, high transmission & blocking of unwanted energy.
www.evaporatedcoatings.com/custom-optical-f...

Beltran Technologies, Inc. - Brooklyn, NY
Manufacturer, Custom Manufacturer, Service Company
Interfarence filters. A complete line of water & air pollution control equipment.
www.beltrantechnologies.com/solutions

Performance Coatings International Laboratories, LLC - Bangor, PA
Manufacturer, Custom Manufacturer
Manufacturer of standard & custom plastic optical filters including interference, panel & low-pass filters. Filters such as contrast enhancement filter materials for display readout windows, PMMA infrared filters, PMMA diffusion filters, PMMA LCD filters, PMMA vacuum fluorescent displays (VFD) filters, EMC display filters & PMMA contrast filters are available. Plastic parts coating services are available. RoHS compliant.
www.pcoatingsintl.com/index.php/product-cat...

Screentek Mfg., Inc. - Randolph, NJ
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of interference filters. Other types of filters including exhaust, analog, breather, coaxial, crystal, deionized water, disc, edge, electromagnetic, expanded metal, fume, honeycomb, hydraulic oil, infrared, leaf, liquid, magnetic, nuclear, opacity, pipeline, ozone, pleated, prototype, quartz, respirator, sanitary, sediment, spatial, sterilizing, turbine, vacuum disc & perforated filters are also available. Specifications of interference filters include 0.021 in. to 0.051 in. warp size, 0.027 in. to 0.051 in. fill dia., 5 x 5 to 21 x 20 strands/sq. in., 23 to 409 holes/sq. in., 0.00046 to 0.02530 opening size/sq. in. & 18.8 percent to 59 percent open area. Filters are suitable for industrial & commercial applications.
www.screentek.us/productdetails.php?pid=4

Sterling Precision Optics, Inc. - Evanston, IL
Manufacturer, Custom Manufacturer
Custom manufacturer of filters including dichroic, interference, polarizing, neutral density & ultraviolet (UV) filters. Types also include colored glass, transmission, tempered heat absorbing, band pass, night vision & infrared (IR) filters.
www.sterlingprecision.com

Schurter, Inc. - Santa Rosa, CA
Manufacturer, Custom Manufacturer
ISO 9001:2000 & ISO 14001:1996 certified worldwide manufacturer of single phase EMI & radio frequency interference (RFI) block filters with rated current from 0.5 mA to 65 mA. Materials include metals such as aluminum & thermoplastic. EMI/RFI filters are available with screw on & PCB mounting, quick connect & solder terminals. Filters are available in medical & standard version
www.schurterinc.com

Newport Industrial Glass, Inc. - Stanton, CA
Distributor, Manufacturer, Custom Manufacturer, Service Company
Fabricator & distributor of filters: absorption, broadband, contrast enhancement, dichroic, infrared, transmitting. Reflecting, infrared, neutral density, night-vision, photographic, polarizing, band pass, ultraviolet, beamsplitters, aviatics, heat absorption, fiber optics, uranium, reference, dwdm, fluorescence, colored glass.
Brand Names: HOYA, Kopp/Corning, Schott
www.newportglass.com/homefil.htm

Schaffner EMC, Inc. - Edison, NJ
Manufacturer, Custom Manufacturer
Worldwide manufacturer of standard & custom filters including interference filters. Available as EMC/EMI filters. EMC/EMI filters such as DC EMC/EMI filters, PCB filters, ultra-compact EMC filters, 75 VDC input PCB filters, two-stage PCB-mounting EMC filters, IEC inlet filters, general-purpose EMC/EMI filters, single-phase/two-phase EMC/EMI filters, ergonomic EMC/EMI filters, multi-stage EMC/EMI filters & three-stage EMC/EMI filters are available. EMC/EMI filters are C-UR®-US, C-UL®-US & UL® listed & CSA®, ENEC & CQC standards approved. EMC/EMI filters are RoHS compliant.
www.schaffnerusa.com/en/products/emcemi.htm...

NexTek, Inc. - Westford, MA
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified manufacturer of feed-through filters including electromagnetic interference (EMI) filters. Available with inductors & capacitors. Filters are suitable for operating current level up to 400 A & voltage up to 500 VDC & also for removing high frequency noise from high current lines. Industries served include communication, aviation, computer, military & medical electronic. RoHS compliant. UL listed. Ten year warranty. On-time delivery.
www.nexteklightning.com/products/Filters/fi...

Laurel Industries - Highland Park, IL
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of standard & custom infrared filters, ultra-violet filters, long wave pass & short wave pass filters in production & prototype quantities. Filters meet Military Spec. or customer specifications.
www.laurelindustries.com/optics.htm

MTK Electronics, Inc. - Medford, NY
Manufacturer, Custom Manufacturer, Service Company
ISO 9001: 2000 certified custom manufacturer of rectangular & square type filters for reducing interference. Specifications of filters include 0 V to 600 V voltage & 0 Hz to 1000 Hz frequency.
www.mtkcatalog.com/

Andover Corp. - Salem, NH
Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2000, AS 9100B & AS9104A certified. Manufacturer of visible & NIR long & short wave pass edge filters with interference effects for isolating spectral bandwidth. Specifications of filters include +0.0 mm/-0.5 mm size tolerance, 4 mm maximum thickness, 90% minimum clear aperture, +/-10 nanometer cut-on & cut-off tolerance, 3 arc/minute parallelism, -50 degrees C to +100 degrees C operating temperature & 2,000 nanometers long wave pass & short wave transmission less than 425 nanometers. ITAR registered.

Pole/Zero Corp. - West Chester, OH
Manufacturer, Service Company
ISO 9001:2000 & AS 9100:2004 Rev B certified. Manufacturer & designer of command, control & communication systems or RF components including digitally tunable radio frequency interference (RFI) filters & amplifiers. Products include bandpass & notch filters, low noise & cosite power amplifiers & integrated cosite equipment (ICE). RF components are suitable for ground vehicles & commercial, military, aircraft & marine applications. On-time delivery.
Brand Names: DR, Maxi-Pole, Micro-Pole, Mini-Pole, Power-Pole