Astrodyne TDI: 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. Astrodyne TDI takes pride in its commitment to delivering innovative, high-quality power supply and EMI filter solutions, consistently exceeding customer expectations through continuous improvement and dedicated service.

Request a Sample

ASX-E Multi-Output Power Supply: Five Outputs, One Compact Platform

The ASX-E delivers up to 1.4kW of regulated DC power across five galvanically isolated outputs, eliminating the need for bulky configurable systems. Each output can be factory-set to your exact voltage requirements, providing a streamlined, plug-and-play solution that simplifies integration and accelerates time-to-market.

Learn More

AC/DC Power Supplies

AC/DC power supplies convert AC input power to regulated DC power and are available in various form factors, including open frame, enclosed, encapsulated, and board-mount versions.

Find a Solution

DC/DC Power Supplies

Astrodyne TDI's DC/DC converters include rugged liquid-cooled series designed for demanding applications such as electric vehicles and industrial uses.

Find a Solution

EMI/EMC Filters

Astrodyne TDI's RP285 EMI filter is ideal for industrial automation, process control, utilities, and power line communication systems. The RP285 delivers superior common and differential mode noise blocking and reliable PLC signal integrity.

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

Power Distribution Units

Discover our versatile PDUs engineered for a wide range of applications

Find a Solution

Transformers

Explore our wide range of transformers designed for efficient voltage conversion, precise current measurement, and reliable isolation

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.

Astrodyne TDI provides unmatched engineering support to take products from design to production and prioritizes engineer-to-engineer collaboration to solve specific power design challenges. Astrodyne TDI specializes in custom and standard AC/DC power supplies, DC/DC converters, and filters for various industries, including medical, semiconductor, military, and industrial automation.

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 customers across a wide variety of markets, including industrial, medical, semiconductors, consumer appliances, and military/aerospace applications. Astrodyne TDI is dedicated to going above and beyond for customers through top-tier quality and unparalleled customer service.

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 provides advanced COTS power supplies and EMI Filters specifically engineered for defense and aerospace applications, demonstrating expertise in meeting stringent MIL-standard and aerospace specifications.

Learn More

Astrodyne TDI News and Blog Posts

Blog | Oct 24, 2025

Understanding EMI and Designing for EMC: From Theory to Practice

Introduction Electromagnetic Interference (EMI) and Electromagnetic Compatibility (EMC) are critical considerations in modern electronics design. As circuits become faster, smaller, and more densely ...

Learn More

Blog | Oct 23, 2025

Semiconductor Power Supplies for Front-End & Back-End Manufacturing

The semiconductor industry is one of the most capital-intensive manufacturing sectors globally. In 2024, the global semiconductor manufacturing equipment market reached approximately $110 billion, ...

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