Single Line Analogue Telephone Line HEMP Filter

HEMP telephone line analogue filters are designed to withstand all the E1, E2 and E3 pulse types. These components are subjected to the PCI test and must match the shielding effectiveness as stated in MIL-STD-188-125.

  • Voltage Range

    ± 150 V DC

  • Current Range

    0.5 A

  • Application


Product Specification


Telephone and Signal lines for various application areas:

  • Military – Power Line POE for shielding chambers, Radar systems, Airborne Communication Systems
  • Medical systems – MRI scanning rooms and diagnostic facilities
  • High security government agencies
  • Banking and financial services
  • Data centers and server rooms
  • Test & measurement equipment

What EMIS Offers

EMIS range of EMP Surge Protectors/Filters for Analog Telephone Lines provide very effective noise attenuation for a wide range of military and industrial applications.

Mounting, Construction, Ratings

  • Tested as per MIL 188-125-1 standards (Charged Line Method)
  • Unrestricted Lines of Intrasite, Short Pulse (E1)
  • Upto 500mA
  • 125VDC/90VAC
  • 100dB Attenuation upto 3GHz
  • Max Surge Current : 10KA @ 8/20µs

Note: Customer specific solutions are also delivered on request, apart from filters and shielding solutions from the product catalog. Very High attenuation Filters upto 40GHz can be made as per customer request.