Case 01Defense · Naval
Fit a transformer through a submarine hatch
Full rating, redesigned around the one opening it had to pass through.
ConstraintEnvelope
About Pacific Transformer
Three guys, one garage, 45 million transformers later.
In 1981, three softball teammates borrowed $1,300 each from their parents and built transformers in a garage. They delivered on time. That customer still orders from us today.
Forty-five years later, we're still founder-owned, still based in California, and still trying to earn the next order.
- Founded in a garage
- 1981
- Transformers shipped
- 45M+
- Still founder-owned
- Anaheim, CA
In the field Mars Rover — powered by Pacific Transformer
From the archive
Forty-five years, straight from the photo box
01 / 09
1981
Where it started
Three softball teammates borrowed $1,300 each from their parents and set up shop in a garage. The first order shipped on time.
What We Do
We're not the cheapest. We're not the largest.
We're the ones you call when the timeline is tight, the specs are critical, and it has to work.
We design and build custom magnetic components — transformers, inductors, and chokes — for customers who cannot afford failure.
The team · AS9100 registration day · Anaheim, CA
Our work powers
- 01 Mars rovers Aerospace
- 02 Nuclear submarines Defense
- 03 Tesla Superchargers EV infrastructure
- 04 Trainwreck amplifiers High-end audio
Also serving Medical devicesData centersRenewable energyIndustrial automationEV charging
Credentials
Proven where it matters
NASA and the Department of Defense. Tesla and General Motors. Otis Worldwide's 2022 Global Supplier Award winner.
- Aerospace
- AS9100D
- Certified
- Military
- MIL-PRF-27
- Qualified
- Export control
- ITAR
- Registered
- Dun & Bradstreet
- 3A1
- 30+ years, zero late payments
We also work with the startup building its first prototype and the regional manufacturer ordering 500 units a year — medical devices, renewable energy, industrial automation, data center PDUs, EV charging, and professional audio.
The applications vary. The standard doesn't. If it ships with our name on it, it was built like it matters — because to someone, it always does.
Why Pacific Transformer
Plenty of shops can wind a transformer.
What our customers count on is everything around it.
01 / 06 · Pricing
3 countries
International facilities Affordable world pricing
Buying power, experience, and our own facilities abroad give you world pricing — without the usual international manufacturing pitfalls.
MexicoThailandChina
02 / 06 · Supply chain
1 USA failover
Domestic backup facility Manufacturing without the risk
If anything disrupts an international facility, our USA facility takes over and builds your order.
Customs holdsStormsDock strikesOrder issues
03 / 06 · No obligation
$0 to start
Custom design cost Free designs & quick prototypes
We design a transformer for your application. Once you approve, we build and ship a one-off prototype for testing.
No obligationNo hidden feesOne-off prototype
04 / 06 · Quality
ISO 9001
Certified manufacturer Quality and reliability
Our magnetics go into critical medical equipment, the US military, and NASA — where extreme reliability is the whole point.
UL recognizedCSA recognizedETL recognized
05 / 06 · Approvals
5 agencies
Approvals we design for Experts at agency approvals
Decades of building magnetics to agency requirements. Our engineers know what it takes — one less thing for you to worry about.
ULCSACEETLTÜV
06 / 06 · Speed
48 hours
Prototype in your hands Industry-leading turnarounds
Hands-on engineers assess your needs and quote within 24 hours. Prototypes are built in Anaheim, California.
Quote ≤ 24 hPrototype ≤ 48 hBuilt in Anaheim
It's not impossible until we say it is
Our superpower: our engineering team.
Companies come to us after hearing "it can't be done" everywhere else. We don't just build to your spec — we help you find the right one.
Case files · Turned away elsewhere Real projects
Case 02Aerospace · Mars
Survive the surface of Mars
Magnetics built for extreme heat, cold, vibration, and vacuum — while weighing almost nothing.
ConstraintEnvironment + mass
Case 03Optimization
Half the size. A third of the cost.
A standard catalog part, re-engineered from the core out.
ConstraintSize + cost
Signal path · How we engineer it
- T + 0
Free design
Tell us the problem. We design the solution — no cost, no obligation.
- T + 24 h
Quote + model
An accurate quote in a day, with computer modeling before anything is wound.
- T + 48 h
Physical prototype
Built in Anaheim and in your hands for testing within 48 hours.
- Ongoing
Production
The same engineers stay with it from prototype to production.
The transformer you think is impossible might just be Tuesday for us.
CAD · Winding layout 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.
Start My Quote
No account needed. Free engineering review.