Precision Power for Mission-Critical Applications.
Toroid Corporation engineers and manufactures custom and standard toroidal transformers, medical isolation systems, and advanced magnetic components, trusted by OEMs, medical device leaders, and Fortune 100 manufacturers worldwide.
- 40+
- Transformer Expertise
- 20VA to 18kVA
- Power Capabilities
- U.S. + Brazil
- Global Manufacturing
- ISO 9001
- Quality Certified
A Complete Portfolio of Engineered Power Solutions.
Custom Inductors & Chokes
Engineered for Your Application. Built to Your Specifications.
Unlike manufacturers offering only standard, off-the-shelf components, Toroid Corporation develops custom inductor and choke solutions built precisely around your operating conditions, thermal limits, and saturation requirements.
No Fixed Catalog Limitations
Every design is customized to your exact inductance, peak current, and DC bias requirements.
Optimized Core & Thermal Performance
Select magnetic materials and insulation systems engineered for minimal ripple and high efficiency.
Prototypes to Scaled Production
Comprehensive engineering review from single-piece functional prototypes to volume OEM manufacturing.
Toroid Corporation
Custom Inductor Design
Engineered to Your Specs:
Built to move your project forward.
Engineering at the Core
Speak directly with U.S.-based electrical engineers. No layers. No sales gatekeepers. Just answers.
Scale Without Compromise
From 1-piece prototypes to 20,000-unit production runs, with the same attention to quality.
First-Article Prototypes in Weeks, Not Months
Integrated design, magnetics, and build teams accelerate first-article delivery and validation.
Proven in the Field
Deployed in MRI suites, robotic cells, broadcast trucks, flight simulators, and industrial controls.
NDAs Welcome
Mutual or one-way, send yours or use ours. Confidential designs stay inside engineering and are never shared without permission.
FAI and PPAP Supported
First-article inspection reports and full PPAP packages on request, including dimensional layouts, material certifications, and process flow.
Trusted across demanding applications.
From life-critical medical systems to aerospace avionics, our transformers perform where reliability is measured in decades.
- MedicalMedicalIsolation transformers for MRI, OR, and patient-contact diagnostic equipment.
- Test & MeasurementTest & MeasurementPrecision power and clean isolation for instrumentation and lab-grade equipment.
- Industrial ControlsIndustrial ControlsRobust transformers for PLCs, drives, and factory automation systems.
- Data & TelecomData & TelecomLow-noise isolation for switching gear, racks, and signal-sensitive equipment.
- RoboticsRoboticsCompact, EMI-quiet transformers built for servo and motion-control systems.
- Energy & Backup PowerEnergy & Backup PowerHigh-efficiency cores for backup, line-conditioning, and uninterruptible power.
- AvionicsAvionicsAerospace-grade isolation for cockpit avionics and ground-support systems.
- LightingLightingLinear power for theatrical, broadcast, and architectural lighting.
- MarineMarineCorrosion-resistant transformers for shipboard and offshore power systems.
From concept to certified production.
Our engineering team collaborates with you end to end. Share your specs and we handle magnetic design, regulatory strategy, and manufacturing optimization.
Start Your Project- 01
Define Requirements
Electrical, mechanical, environmental, and regulatory inputs gathered upfront.
- 02
Engineering Review
Magnetic design, core selection, and winding topology proposed by our engineers.
- 03
Prototype & Validate
First-article build, in-house testing, and iterative refinement of the design.
- 04
Production & Delivery
ISO 9001 production, full lot traceability, and on-time shipment to your dock.
American-Headquartered.
Globally Capable.
Engineered and manufactured in the United States, with additional production capability in Brazil to support customers across the Americas.
2020 Northwood Drive · Headquarters, engineering, and primary manufacturing operations.
Rua Antonio Bianchetti, 541 · Additional production capacity serving North and South American customers.
Have a design challenge or custom specs?
Our engineering team is ready to design a custom toroidal transformer tailored to your specific application.
