LCR Electronics specializes in the design and manufacture of custom and standard EMI filters, suppression components, electronic & motor control boards and offers a variety of EMC testing, engineering and contract manufacturing services. They have expertise in a wide range of applications and markets including appliance, military and aerospace, commercial, industrial, telecommunications and medical.

LCR Electronics was acquired by Astrodyne (now Astrodyne TDI) in 2013. Astrodyne TDI has consolidated its EMI filter manufacturing in the US, and moved LCR Electronics, Norristown, PA facility to Yorba Linda, CA. The facility in Norristown, PA has ceased all the manufacturing operations as of 5/29/2015.