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.

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16.5kW. 1U. Liquid-Cooled Power Redefined.

Engineered for next-generation systems, LiquaBlade™ delivers industry-leading power density in a compact 1U form factor. With advanced liquid cooling, full programmability, and scalable architecture, it’s built for the most demanding semiconductor, defense, and industrial applications.

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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.

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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.

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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.

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Uninterruptible Power Supplies

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

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Loads

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

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Power Supplies By Coolant Type

High voltage power supplies require highly effective cooling solutions.

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Power Transformers

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

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Power Distribution Units

Discover our versatile PDUs engineered for a wide range of applications

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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.

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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.)

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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.

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Semiconductor Fab Equipment

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

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Industrial

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

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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.

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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.

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Astrodyne TDI News and Blog Posts

Blog | Jun 18, 2026

Powering Surgical Suites: Reliable Power, EMI Filtering, and Isolation Solutions for Modern Operating Rooms

Modern surgical suites are among the most demanding environments in healthcare. From robotic-assisted surgery systems and advanced imaging platforms to patient monitoring equipment and surgeon ...

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Blog | Jun 18, 2026

Choosing the Right Current Transformer for High-Current Applications

Electrical systems carrying currents from 50A to 6,000A require current transformers (CTs) that accurately measure load and respond to fault conditions. Utility equipment, motor control centers, ...

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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.

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