Precision Engineering
Tailored Power Conversion & EMI Filtering for Mission-Critical Equipment
Off-the-shelf power units often compromise real-world performance when placed inside custom enclosures, severe thermal conditions, or highly regulated electromagnetic environments. Astrodyne TDI solves complex electrical and mechanical constraints through engineered-to-order power solutions.
With over 60 years of technical expertise, our global engineering teams modify standard product platforms or develop ground-up custom power conversion hardware, specialized EMI/RFI suppression filters, and integrated power distribution units (PDUs). Every project is optimized for manufacturability, safety compliance, and multi-year production stability.
Standard Modification
Quick-turn modifications including custom pinouts, specialized coatings, adjusted output voltages, and ruggedized mechanical housings.
Full Custom Design
Turnkey development from custom magnetic synthesis and power topology design to embedded digital control firmware.
Engineering Scope
Our Custom Product Capabilities
From high-voltage medical systems to ultra-dense defense electronics, we design power architectures built around your exact electrical specs and mechanical envelope.
Custom Power Supplies
AC/DC power supplies and DC/DC converters custom-built for high efficiency, high power density, liquid cooling integration, and wide operating temperature ranges.
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Custom EMI / EMC Filters
Cost-effective single-phase, three-phase, feed-thru, and Tempest RFI/EMI filtering solutions engineered to ensure rapid EMC compliance for complex systems.
Custom Power Distribution Units
Single-phase and three-phase rackmount or cabinet-style PDUs built to deliver filtered, clean power distribution with custom metering and circuit protection.
Industry Proven
Custom Power Applications & Compliance Standards
Our custom designs pass regulatory scrutiny across international safety frameworks on the first submission attempt.
Defense & Aerospace
MIL-STD Hardened Systems
Engineered for extreme operating environments including altitude, shock, vibration, and thermal stress. Fully qualified to meet MIL-STD-461, MIL-STD-810, MIL-STD-704, and RTCA/DO-160 testing protocols for defense systems.
- Tempest and MIL-COTS custom suppression networks
- Liquid-cooled high-density power modules for electronic warfare
- Sealed conduction-cooled housings for rugged environments
Healthcare & Diagnostics
IEC 60601-1 3rd/4th Edition Compliance
Custom medical power systems designed with ultra-low patient leakage current, 2×MOPP galvanic isolation, and enhanced immunity for patient-connected applications, surgical robotics, and MRI devices.
- Custom medical isolation transformers and power stations
- Zero-interruption power transfer for mobile medical carts
- EMC pre-compliance verified for clinical environments
Semiconductor Equipment
SEMI F47 Voltage Sag Tolerance
High-reliability custom DC power platforms engineered to ride through short-duration AC voltage sags, protecting capital fab tools, wafer processors, and electrostatic chucks from costly downtime.
- Liquid-cooled kilowatt-class power conversion modules
- Ultra-fast transient response and low output ripple
- Cleanroom-compatible zero-particulate cooling architectures
Engineering Rigor
In-House EMC Shielded Labs & Quality Verification
To accelerate your project timelines, Astrodyne TDI operates fully equipped in-house shielded EMC test chambers. Our engineers perform preliminary conducted and radiated emissions testing, immunity verification, and safety pre-screenings before submitting designs to official safety agencies.
With an active library of over 18,000 custom EMI filter designs, our team frequently adapts proven filtering networks to satisfy tight spatial and electrical requirements, delivering custom prototypes within 1 to 2 weeks and full production shipments in as little as 4 weeks.
- Comprehensive HASS (Highly Accelerated Stress Screening) verification
- Full compliance mapping for FCC, CISPR, CE, UL, cUL, and VDE standards
- Lifecycle change control guaranteeing zero unannounced component changes
Certifications & Quality Standards
Our manufacturing plants operate under internationally audited quality management systems to guarantee quality consistency across every unit produced.
- ISO 9001:2015 — General Quality Management System
- ISO 13485:2016 — Medical Device Quality Management System
- AS9100D — Aviation, Space & Defense Quality Standard
Custom Solutions FAQ
Frequently Asked Engineering Questions
Key considerations international buyers ask when starting a custom power development project.
Off-the-shelf units often require electrical or mechanical compromises. Custom power supplies and EMI filters are designed around your exact enclosure dimensions, thermal dissipation constraints, voltage rails, and environmental threats. Furthermore, custom units guarantee compliance with stringent standards like IEC 60601-1, MIL-STD-461, or SEMI F47 without adding unneeded component cost.
For modified standard platforms, engineered prototypes can often be delivered in 1 to 2 weeks. Ground-up custom power supplies or complex EMI filtering solutions typically require 4 to 8 weeks depending on the development of custom magnetics, PCB layouts, and pre-compliance testing.
We perform EMC pre-compliance testing and safety evaluations inside our agency-approved in-house laboratories. This ensures that when your system undergoes formal certification testing (UL, cUL, CE, VDE, CB Scheme), it passes on the first attempt without unexpected redesign cycles.
Every custom product undergoes 100% functional end-of-line testing. Optional Highly Accelerated Stress Screening (HASS) in environmental thermal chambers is available to eliminate infant mortality risks for high-reliability medical, defense, and industrial applications.
Require a Customized Power System or EMI Filter?
Consult directly with our custom application engineering team to evaluate your mechanical and electrical specifications.