1309 F3 cover

Facility Power Filters: Symmetric vs. Asymmetric Performance

1309 F3 coverAsymmetric filter designs are gaining popularity in industry because of their lower cost and size, however, although this design is successful in eliminating common mode signal issues this paper will show that for certain applications such as TEMPEST these filters offer little to no protection. Symmetric filters, although physically larger and more costly due to the use of more components, provide better filtering in these applications.


High Current Filtering Technology – The HPR Series

NexTek's HPR series of extremely high current filters is ruggedly designed to operate at current levels up to 400 amperes and voltages up to 500 Vdc. A large range of available capacitance provides significant insertion loss at frequencies as low as 1 KHz, and provides over 60 db insertion loss to above 1 GHz.