More than Power Supplies & EMI/EMC Filters

With more than 60 years of experience as a Power Supply and EMI Filter manufacturer, our team can provide unmatched engineering support to take your product from design to production.

Request a Sample

HermesFlex™ New Output Ranges: 12V and 1000V Now Available

HermesFlex™ now offers 1–12V and 80–1000V programmable output options, providing precise control and high-voltage capability for a broad range of test, medical, and industrial applications—all within a compact 1U design.

Learn More

AC/DC Power Supplies

Astrodyne TDI’s offers a wide selection of highly reliable AC-DC power supplies.

Find a Solution

DC/DC Power Supplies

Explore our in-house designed DC-DC power supplies and converters.

Find a Solution

EMI/EMC Filters

Discover our large selection of standard and custom EMI/EMC and RF filters.

Find a Solution

Uninterruptible Power Supplies

Critical applications demand reliable up-time. Learn more about our seamless backup power solutions.

Find a Solution

Loads

Astrodyne TDI high-voltage electronic loads are highly versatile, programmable and feature-riched.

Find a Solution

Power Supplies By Coolant Type

High voltage power supplies require highly effective cooling solutions.

Find a Solution

Custom Solutions at Astrodyne TDI

A variety of technical requirements can prevent you from finding the perfect off-the-shelf solution. At Astrodyne TDI we have the advanced tools and technology to design and modify power supplies and EMI filters to meet your unique requirements.

Find a Custom Solution

On-Demand Training

Power Solutions for Medical System Designs

Join our webinar to learn about selecting power supplies, EMI filters, and toroidal transformers for medical systems. Gain insights into Electromagnetic Compatibility (EMC) and safety requirements to enhance device performance and safety. Ideal for engineers, product managers, and decision-makers in medical technology.

Semiconductor Capital Equipment Power

Conforming to SEMI F47 Voltage Sag Tolerance

Power supplies used in semiconductor manufacturing equipment are generally required to conform to the SEMI F47-0706 voltage sag tolerance standard. These standard details the conditions under which a power supply must continue to operate in the event of a temporary degradation of its single-phase AC input voltage level. (SEMI F47 does not apply to three-phase input power supplies.)

Tell me more

Applications

Astrodyne TDI delivers power and EMI filter solutions to a diverse array of markets and industries world-wide.

Healthcare

Astrodyne TDI understands the critical components of medical devices and can deliver highly reliable power and EMI filter solutions that meet their needs.

Learn More

Semiconductor Fab Equipment

Astrodyne TDI is the leading provider of power solutions for various semiconductor equipment applications worldwide.

Learn More

Industrial

Deliver safety and reliability throughout the testing and assembly process — browse our selection of industrial solutions.

Learn More

Pro-Grade Consumer Appliances

Astrodyne TDI is committed to providing you with durable, economical EMI filter and power solutions that will fit all your appliance needs.

Learn More

Military & Aerospace

Astrodyne TDI offers an extensive array of COTS power supplies and EMI Filters designed to meet stringent MIL-standard and aerospace specifications.

Learn More

Astrodyne TDI News and Blog Posts

Blog | Jul 29, 2025

Compact Power, Maximum Efficiency: Toroidal Transformers in Industrial Automation

In today’s fast-paced industrial environments, the demand for compact, reliable, and energy-efficient power solutions is more critical than ever. As factories become smarter and automation systems ...

Learn More

Blog | Jun 24, 2025

Save More, Power Better: Benefits of Toroidal Transformers

Uncover the remarkable cost-saving benefits of our Toroidal Transformers and how they can revolutionize your equipment. Immerse yourself in the excellence of our top-tier electrical transformers, ...

Learn More

BLOG | June 24, 2020

3-Phase Power: Delta vs Wye Explained

Three-phase power plays a key role in the design of electrical systems, and 3-phase EMI filters are an important part of the electrical devices in different markets, primarily in heavy-duty industrial applications.

Learn More