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Custom Inductors & Chokes Engineered for Your Application
Power inductors, common-mode chokes, EMI filters, and custom wound coils — engineered and manufactured at our Anaheim, CA facility with no minimum order quantity and the industry's fastest turnaround times.
Precision Inductors, Built to Your Specs
We're more than a manufacturer — we're your engineering partner. Every inductor and choke we build is custom-designed to meet your exact electrical, mechanical, and environmental specifications. From power line chokes and common-mode inductors to precision current sense coils and EMI filter components, Pacific Transformer delivers the inductor solutions your application demands.
Power Inductors
High-current, low-DCR power inductors for switch-mode power supplies, DC-DC converters, and voltage regulators. Available in toroidal, E-core, and pot core configurations with current ratings from milliamps to hundreds of amps.
Common-Mode Chokes
Dual-winding chokes designed to suppress common-mode noise in power lines, data cables, and communication circuits. Our common-mode chokes deliver high impedance to noise while maintaining low insertion loss for differential signals.
EMI Filter Inductors
Power line chokes and filter inductors engineered to attenuate conducted EMI and meet FCC, CISPR, and MIL-STD-461 requirements. Available in single-phase and three-phase configurations for industrial, medical, and military applications.
Toroidal Inductors
Toroidal inductors offer superior EMI containment, low magnetic leakage, and high efficiency in a compact form factor. We wind on ferrite, powdered iron, and nanocrystalline cores to match your frequency, current, and inductance requirements.
Drum Core Inductors
Compact, cost-effective inductors wound on drum or bobbin cores for high-volume applications. Ideal for DC-DC converters, LED drivers, and portable electronics where board space is limited and automated assembly is required.
Current Sense Inductors
Precision-wound inductors with tight tolerance for current measurement and monitoring applications. Our current sense inductors provide accurate signal output for power management ICs, battery management systems, and motor drives.
Air Core Inductors
Self-supporting coils with no magnetic core, delivering linear inductance independent of current level. Air core inductors are ideal for high-frequency RF circuits, resonant tanks, and applications where core saturation must be eliminated.
Custom Wound Inductors
When standard designs don't fit, our engineers create fully custom wound inductors tailored to your unique requirements — unusual form factors, specialized core materials, extreme temperature ratings, or multi-winding configurations. No job is too complex.
Industries Served
From aerospace avionics and medical devices to electric vehicles and data center power systems, Pacific Transformer's custom inductors and chokes serve the most demanding industries. Our magnetics are trusted wherever precision, reliability, and regulatory compliance are non-negotiable.
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