Wound to Spec
High-Frequency Transformers, Wound to Spec
Raising switching frequency is how modern power electronics get smaller — but it also moves the design problem into the winding. Skin effect, proximity loss, leakage inductance, and core material selection start to dominate above a few tens of kilohertz, and a transformer that works on paper can still run hot on the bench.
We wind high-frequency transformers on ferrite, nanocrystalline, and powdered-iron cores for operating frequencies from 1 kHz to 1 MHz and power levels up to several kilowatts, with custom primary/secondary ratios and isolation built to your spec. Send us the topology, frequency, and rails — our engineers spec core, wire construction, and interleaving for free, and every unit is individually tested before it ships.
Applications
Where High-Frequency Transformers Are Used
Wherever power density is the constraint — switch-mode supplies, resonant converters, inverters, and industrial power trains.
Switch-Mode Power Supplies
Forward, push-pull, half- and full-bridge designs where size and efficiency both matter.
Resonant / LLC Converters
Tightly controlled leakage and magnetizing inductance for soft-switching topologies.
Renewables & Inverters
Isolated DC-DC stages in solar, storage, and grid-tie inverter power trains.
Industrial Power Conversion
Drives, welders, plating supplies, and process equipment running at high frequency.
Keep Exploring
Explore More Custom Transformers
Industries Served
From NASA payloads to guitar amplifiers, Pacific Transformer's custom magnetics power some of the most demanding applications in the world. Our engineering team has deep experience across industries where compliance, performance, and reliability aren't optional — they're required.
FREQUENTLY ASKED QUESTIONS
High-Frequency Transformers
Get a Quote
A few questions in — a quote back in one business day.
Our quoting system walks you through your project one question at a time — voltages, quantities, application — and builds your drawings as you go. A PACTRAN applications engineer stands behind every quote.
1DAY
Quote turnaround
Pricing and lead time within 1 business day
2DAYS
Prototype turnaround
A wound, tested prototype in 2 business days
Prefer to talk it through? 800-325-0501
Start your quote
Takes about 5 minWe'll ask, for example
What input voltage does your design see?
- 01
Describe your project. In your own words — give us what you know.
- 02
Answer a few guided questions. We only ask what your quote needs.
- 03
Get your quote. Pricing, lead time, and preliminary drawings — reviewed by an engineer.