Passives
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ATP (Applied Thin-Film Products) – is a supplier of various printed thin-film products, including but not limited to, Inductor coils, Microstrip transmission lines, Stand-off/Isolation pads, and ATP Bond Qualification Coupons. ATP has the ability to do, build-to-print circuit services on a large range of materials and metallization schemes, including, fine pitch conductors, hollow plated and solid filled vias, wrap-arounds, polyimide supported bridges, integrated resistors, and more. ATP specializes in products suited for military, aerospace, wireless, fibre-optic, as well as the medical life science markets.
AXTAL – focusses on the Design, Development, Production, Testing and Sales of Frequency Control Products and Piezo Sensors, which includes crystal resonators, crystal oscillators, and frequency control modules comprising quartz and other piezoelectric crystal resonators, such as Langasite (LGS), Langatate (LGT) as well as SAW resonators. AXTAL’s OCXO for Space applications are listed in the ESA EPPL. Download the 2025 Catalog
BSC Filters – BSC Filters is dedicated to excellence in all aspects of filters and diplexers, specializingin Waveguide, Interdigital, Combline, Cavity, Lumped Element and Microstrip devices. Other components include Couplers, Equalisers, Switched Filter Banks, Transitions and Waveguide Assemblies.
EMI Filter Company – EMI offers non-capacitive feed-throughs and ground points in all the popular threaded and solder-in bodies that we offer in capacitive filters. EMI manufactures bulkhead mounted low pass filters in threaded, solder-in, and press-in styles to the microwave communications industry. EMI Filter Company brought automation and lean manufacturing to filter manufacturing while others in the industry simply moved offshore.
International Manufacturing Services, Inc. – Established in 1974, IMS is a privately held ISO 9001:2008 certified premier provider of thick and thin film passive-resistive products. For over 40 years IMS has been transforming customer drawings into reality. IMS decades of surface mount component experience have resulted in numerous customer adapted solutions.
K&L Microwave – part of the Microwave Products Group (MPG), a Dover company, is recognized by top-tier defense contractors and wireless infrastructure providers as a world leader in the design and manufacture of RF and microwave filters, duplexers, and integrated assemblies.
Knowles Precision Devices – As a division of Knowles Corporation, Knowles Precision Devices (KPD), focuses on production of a wide variety of highly engineered Capacitors and Microwave to Millimeter Wave components for use in critical applications in military, medical, electric vehicle, and 5G market segments. Radar, pacemakers, MRI equipment, satellites, airplanes, electric vehicles and mobile phone base stations are just a few of the places you will find these products.
Spectrum Control – Supplier of passive RF and Microwave components for markets such as Commercial, Military, Space, and Laboratory test. Product solutions include surface mount resistive components, coaxial signal conditioning products to 65 GHz, and coaxial test cable assemblies. Weinschel’s product offering includes fixed attenuators, continuously variable, manual step, solid-state digital step and programmable step attenuators; high power terminations; resistive splitters and dividers; manual phase shifters; Planar Blind-Mate ®, Planar Crown ® connectors.