NAICS 334416

Overview

NAICS 334416 covers establishments primarily engaged in manufacturing electronic-grade coils, transformers, chokes, and other inductors used in circuits for power conversion, filtering, signal conditioning, and electromagnetic interference suppression. Typical products include RF and power inductors, audio and pulse transformers, ferrite- and powdered-iron–core components, and precision wound coils for consumer, industrial, communications, medical, and defense electronics. This industry excludes semiconductor devices (NAICS 334413), electronic capacitors (NAICS 334414), electronic resistors (NAICS 334415), electronic connectors (NAICS 334417), printed circuit assembly services (NAICS 334418), other electronic components not elsewhere classified (NAICS 334419), and power, distribution, and specialty transformers for electrical power systems (NAICS 335311). Federal demand often emphasizes high-reliability, radiation-tolerant, low-noise magnetics and custom form factors for aerospace, defense, and secure communications supply chains. Scope and cross-references are defined by the official NAICS 2022 classification for 334416. ¹

What this NAICS covers

• NAICS 334416 comprises establishments primarily engaged in manufacturing electronic coils, transformers, chokes, and other inductors designed to function within electronic circuits for signal processing, isolation, impedance matching, filtering, or power conversion at the device/board level. ¹
• Electronic transformers intended for incorporation in electronic equipment (e.g., signal, audio, intermediate-frequency, pulse, gate-drive, isolation, and small power transformers used on printed circuit boards or within electronic devices). ¹
• Electronic inductors and chokes, including radio-frequency (RF) inductors, common-mode chokes, and other coil-based components used for EMI suppression and filtering within electronic assemblies. ¹
• Tuned coils/inductors and tuned transformers for RF, IF, or audio applications when these are manufactured as electronic components for circuit integration. ¹
• Surface-mount and through-hole magnetic components supplied as discrete electronic parts (e.g., chip inductors, toroidal inductors, pot-core or E-I core–based transformers/inductors) intended for PCB or module integration. ¹
• Coil and inductor subassemblies manufactured as electronic components (e.g., wound coils with leads/terminals, bobbin-wound assemblies, toroids with leads) for subsequent incorporation into electronic devices or equipment. ¹
• Custom or standard electronic magnetics produced to specification for use in consumer, industrial, medical, communications, aerospace, or defense electronics, provided the products are electronic components as opposed to distribution-class power equipment. ¹
• Manufacturing of “electronic type” coils, transformers, chokes, and inductors regardless of form factor or package, where the unit’s intended use is within electronic circuits rather than in electric power transmission/distribution systems. ¹

Related NAICS and PSC codes

• NAICS 334413 — Semiconductor and Related Device Manufacturing; upstream ICs and discretes that pair with magnetics in power management, RF front ends, and isolation circuits.
• NAICS 334414 — Electronic Capacitor Manufacturing; complementary passive components used with inductors and transformers in filters, power supplies, and timing networks.
• NAICS 334415 — Electronic Resistor Manufacturing; complementary passives used with coils/inductors in impedance networks and filtering.
• NAICS 334417 — Electronic Connector Manufacturing; interconnects for PCB/module integration of magnetics and related assemblies.
• NAICS 334418 — Printed Circuit Assembly (Electronic Assembly) Manufacturing; contract manufacturers and EMS providers that integrate coils/inductors/transformers onto boards and modules.
• NAICS 334419 — Other Electronic Component Manufacturing; includes EMI/RFI components, ferrites, and specialized electronic parts closely associated with inductors and small transformers.
• NAICS 335311 — Power, Distribution, and Specialty Transformer Manufacturing; adjacent space for power-distribution transformers distinct from “electronic type” magnetics.
• NAICS 335312 — Motor and Generator Manufacturing; electromechanical products that use wound coils but are outside electronic component manufacturing.
• NAICS 335314 — Relay and Industrial Control Manufacturing; control equipment that may incorporate small electronic transformers/inductors as embedded components.
• NAICS 334220 — Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing; downstream OEMs using RF inductors/chokes in transceivers, filters, and matching networks.
• NAICS 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing; aerospace/defense systems where high‑reliability magnetics are integrated.
• NAICS 334510 — Electromedical and Electrotherapeutic Apparatus Manufacturing; medical OEMs requiring precision, low‑noise magnetics in power and signal isolation.
• PSC 5950 — Coils and Transformers; primary PSC for electronic inductors, chokes, and electronic-type transformers used in equipment and circuit applications.
• PSC 5915 — Filters and Networks; EMI/RFI filters and LC networks that often incorporate inductors and chokes.
• PSC 5999 — Miscellaneous Electrical and Electronic Components; catch‑all for magnetic parts and accessories not elsewhere classified.
• PSC 5998 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware; assemblies and subassemblies that integrate coils/inductors/transformers.
• PSC 5910 — Capacitors; complementary passive components frequently procured alongside inductors for filter and power designs.
• PSC 5905 — Resistors; complementary passives typically paired with inductors in networks and timing/feedback circuits.
• PSC 6120 — Transformers: Distribution and Power Station; large distribution/power transformers distinct from electronic magnetics but relevant for distinguishing scope.
• PSC 6130 — Converters, Electrical, Nonrotating; power conversion equipment that utilizes magnetics internally though not a direct substitute for discrete components.
• PSC 6145 — Wire and Cable, Electrical; includes magnet wire and leads used in coil and transformer winding and terminations.
• PSC J059 — Maintenance, Repair, and Rebuilding of Equipment—Electrical and Electronic Equipment Components; services that may include repair/rework of coil/transformer subcomponents within equipment.
• PSC K059 — Modification of Equipment—Electrical and Electronic Equipment Components; modification/retrofit services that can involve reconfiguring magnetics within assemblies.
• PSC N059 — Installation of Equipment—Electrical and Electronic Equipment Components; installation and checkout of component‑level equipment where inductors/transformers are integrated.

Frequently asked questions

• What activities does NAICS 334416 primarily include?

  • Manufacturing of electronic-grade coils, transformers, chokes, and other inductors intended to operate within electronic circuits (e.g., for signal isolation, filtering, impedance matching, and power conversion at the device/board level). It does not cover electrical power distribution transformers. See NAICS 334416 for boundaries. ¹

• How do I distinguish NAICS 334416 from NAICS 335311?

  • If the product is a power, distribution, or specialty transformer for electrical power systems, it falls under NAICS 335311. “Electronic type” transformers and inductors designed to be installed within electronic equipment are in NAICS 334416. ¹

• Are printed circuit assemblies with magnetics classified under this NAICS?

  • No. Contract assembly of PCBs or modules (even if they include coils/transformers) is classified in NAICS 334418. NAICS 334416 covers manufacturing the discrete electronic magnetic components themselves. ¹

• Where do unwound ferrite cores or magnetic materials fit?

  • Unwound cores and certain specialized electronic parts generally fall in “other electronic components,” such as NAICS 334419, whereas wound coils/transformers/inductors belong in NAICS 334416. ¹

• How should I classify power supplies or converters that contain magnetics?

  • Classify the end product by its principal function (e.g., a power conversion unit), not by the presence of magnetics. NAICS 334416 applies to the manufacture of discrete coils/inductors/transformers, not complete power-supply equipment. ¹

Useful resources

• Official NAICS 2022 definition and cross‑references for NAICS 334416 (Electronic Coil, Transformer, and Other Inductor Manufacturing): https://www.census.gov/naics/?input=334416&year=2022&details=334416
• NAICS 2017 to 2022 Concordance (crosswalk) to track boundary changes: https://www.census.gov/naics/concordances/2017_to_2022_NAICS.xlsx
• SBA Table of Small Business Size Standards: https://www.sba.gov/document/support-table-size-standards
• SAM.gov Contract Opportunities: https://sam.gov/content/opportunities
• USAspending.gov Advanced Search: https://www.usaspending.gov/
• PSC Selection Tool category page for PSC 5950: https://psctool.us/psc/5950
• MIL‑PRF‑27 (Transformers, Power, Inductor, and Reactors; General Specification For): https://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=36055
• MIL‑PRF‑15305 (Inductors, Radio Frequency, Fixed; General Specification For): https://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=36056
• MIL‑STD‑202 (Test Methods for Electronic and Electrical Component Parts): https://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=35912
• DLA Land & Maritime QML/QPL database: https://landandmaritimeapps.dla.mil/Programs/QMLQPL/
• FAR Part 25 (Foreign Acquisition): https://www.acquisition.gov/far/part-25
• DFARS 225.7003 (Specialty Metals): https://www.acquisition.gov/dfars/225.7003-restrictions-acquisition-certain-articles-containing-specialty-metals
• NASA EEE‑INST‑002 (EEE Parts Selection, Screening, Qualification, and Derating): https://nepp.nasa.gov/files/27695/EEE-INST-002.pdf

References

1. U.S. Census Bureau. NAICS 2022 Code 334416 – Electronic Coil, Transformer, and Other Inductor Manufacturing. https://www.census.gov/naics/?input=334416&year=2022&details=334416