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Commercial EMI Filters

Astrodyne TDI designs cost-effective EMI filters and RFI filter solutions for project-specific applications for military, aerospace, commercial, industrial, medical and appliance industries. 

Our unrivaled 30+ years of expertise helps you get your product to market quickly, efficiently and with the least amount of internal hassle.

Astrodyne TDI is dedicated to providing economically viable EMI and RFI filters and EMC solutions to satisfy your unique needs. To achieve this, we have two fully equipped in-house shielded facilities where EMC testing, EMI/RFI filter design and EMC solution development are accomplished.

We have experience with aerospace (RTCA/DO160) as well as commercial (FCC, CISPR, EN, VDE, AUSTEL, SABS, etc.) test standards. We have been helping our customers achieve compliance with European Union EMI requirements (CE) since their inception. Astrodyne TDI has over 18,000 different filter designs and in many circumstances, we can tailor these designs to meet the most demanding product requirements without costly and time consuming re-engineering.

Since EMI is a primary focus for Astrodyne TDI, we can typically provide a solution for custom designed EMI application within five days. We provide high quality, cost effective and unique EMC solutions, as well as quick-turn-around times-typically we will supply custom prototypes within one week, and production quantities in four weeks. 

If we are involved early on in your product design cycle, we also can offer you expert client consulting services, application engineering, and assistance in selecting components that are EMC friendly. At our agency approved 'in-house' test facility, US, Canadian, and/or European safety approvals can be obtained quickly and cost effectively on any of our customized and custom products, if needed. 

For more information on our custom filter capabilities, contact us directly, or visit our


Rated Voltage - Up to 520 VAC
Rated Current (A) - Up to 600A
Operating Frequency - 50/60/400Hz
Leakage Current - Leakage Current to Fit Application
Hipot Rating (1 minute) - Custom Designed to Fit Application
Terminals - Custom Designed to Fit Application