Hardware Specialty Co., Inc. - Locations
Distributor, Service Company
ISO 9001:2008 and ISO 14001:2004 certified stocking distributor of electronic, EMI/RFI, panel & power line filters. Meet MIL-I-45208A & MIL-STD-45662A. RoHS compliant.
Brand Names: Qualtek, Richco, Static Control Components
www.hardwarespecialty.com/products/ec.shtml

Fosta-Tek Optics, Inc.-Engineered Optical Plastics - Leominster, MA
Custom Manufacturer
ISO 9001:2008 registered. Custom manufacturer of optical filters including contrast enhancement, EMI/RFI & infrared filters for display devices & data capture systems. Filters are available in sizes up to 25 in. x 25 in. with 0.03 in. to 2.5 in. thickness. Filter substrates include polycarbonate, acrylic, polyester & glass. Features include abrasion, chemical, solvent, impact, heat, spark, aging & yellowing resistance. Meets L-P-516A, Class G3 & UL94HB specifications. Meets ASTM, ANSI, NFPA, EN & CSA standards. Made in USA.
www.fosta-tek.com/castandfilters.html

NexTek, Inc. - Westford, MA
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified manufacturer of filters. Types of filters include DC feed-through, EMI/RFI, electronic, frequency & line filters. DC filters are available with operating current ranging from 35 A to 250 A, voltage ranging from 50 V to 1000 V, frequency ranging from 1 kHz to over 1 GHz, maximum 22 micro Farad capacitance & 60 dB insertion loss. Features include lug, lock washer, electrical lug & mounting nuts, bolt-on/bulkhead mount & mounting panel. Filters are suitable for reducing high frequency noise on high current lines & to isolate noise from loads. Filters are available with ten years warranty. Meets Military Spec. RoHS & ITAR compliant. UL listed.
Brand Names: SurgeGuard
nexteklightning.com/products/Filters/filter...

Power Guide Marketing, Inc. - West Boylston, MA
Manufacturer

STMicroelectronics - Burlington, MA
Manufacturer, Custom Manufacturer
Standard, Semi-Custom & Dedicated IC's; Memories, Discrete Devices, Microprocessors, Microcontrollers, Programmable Devices

Beyond Components LLC - Westford, MA
Distributor, Manufacturer
Stocking distributor of EMI/RFI filters. Specifications of EMI/RFI filters vary upon models & include 115 VAC & 250 VAC voltage, 6 A, 33 A, 90 A & 330 A current, 50/60 Hz frequency, 0.25 mA, 6.3 mA, 10.5 mA & 27.6 mA leakage current & 1 AWG, 7 AWG & 11 AWG wire size.
Brand Names: Curtis Industries, MTE, PDI, Qualtek, Schurter

Cuming Microwave Corp. - Avon, MA
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified manufacturer of microwave & RF absorbers, low loss dielectric materials & shielding materials used for commercial & defense applications & adhesives including electrically conductive, epoxy & smd for bonding applications. Designs, manufactures & installs RF, turnkey anechoic & emc anechoic chambers. RF absorbers include syntactic foam, rubber, liquid ram coatings, honeycomb & high power absorbers which are used for the rf electromechanical interference, radar cross section reduction, dielectric, artificial dielectrics & radomes.

Total Recoil Magnetics, Inc. - Holliston, MA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of custom electronic transformers/inductors.

Metalweave, Inc. - Danvers, MA
Manufacturer
Manufacturers Of Wire Cloth, Fine & Ultrafine To 6.3 Microns; 2 To 635 Mesh In Plain Weave