Safeguard Critical Infrastructure
with EMP Filters

The Sole Manufacturer of Medium Voltage High Altitude Electromagnetic Pulse (HEMP) Filters

TSS USA Manufacturing has provided filter solutions for thousands of defense operations and critical infrastructure.

Our expertise of 35 years in the electronics and defense industry combined with 40 years of design experience for EMI and EMP filters has resulted in a line of MIL-STD-188-125-1A-certified low voltage HEMP filters and the first-ever medium voltage HEMP filter.

Medium Voltage HEMP Filters

Protect your operations against system failures and electrical blackouts with never-seen-before medium voltage HEMP filters. These filters have revolutionized security for critical infrastructure, including defense and power, control and data lines, telephone lines, and more.  

Low Voltage HEMP Filters

Low voltage HEMP filters shield critical infrastructures like healthcare facilities, food processing plants, and water processing plants, as well as control lines, data lines, and telephone lines.  


The TEMPEST series preserve power lines, control lines, and data lines. The filters prevent TEMPEST interference which is potential signal interception risking confidential information passing to unauthorized parties.  

TSS USA Manufacturing operations are in the U.S.A. and source raw materials and components predominately from the U.S. to serve your critical operations. TSS filters meet the FAR 52.225-1 Made in America.

Our team of experts can guide you through the filter selection process with our engineering services available to you at no extra charge.