This article appeared in Microwaves and RF and is published here with permission.
ML61 series EMI / RFI filters manufactured by Instec Filters, a company acquired by TTE filters, is now qualified for the U.S. Department of Defense (DoD) military standard MIL-PRF-28861 for land and sea use. The filters suppress and minimize radio frequency interference (RFI) and electromagnetic interference (EMI), which can degrade and disrupt the operation of electronic systems. The electrical, thermal and mechanical examinations and tests necessary for the qualification of MIL-PRF-28861 were carried out in a TTE nurse Gowanda Electronics.
The miniature EMI / RFI filters from the ML61 series (see image above) are hermetically sealed at one end and epoxy sealed at the other end. They have a diameter of 0.128 inches (3.25 mm) in diameter with a main body height of 0.110 inches (2.79 mm) and a length from tip to tip of 0.625 inches (15.88 mm). They can be supplied in configurations A or B according to the requirements of MIL-PRF-28861. They are designed for voltages from 50 to 200 V dc and operating temperatures from –55 to + 125 ° C, with available capacities of 10 to 15,000 pF and insertion loss of 3 to 60 dB to provide adequate EMI and RFI suppression.
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